Wednesday, 6 May 2015

Mitsubishi Outlander chasing down Nissan Leaf in UK green car sales

BusinessGreen.com: Plug-in hybrid SUV is second biggest selling electric vehicle in UK even though it was only released last year



The Mitsubishi Outlander plug-in hybrid is the second most common green car in the UK even though it was only released last year, industry figures show.

Analysis of DVLA data by the RAC Foundation show there were 5,273 of the SUV licensed in the UK at the end of 2014, putting it second only to the Nissan Leaf.

The Leaf, which has led the market since it arrived in 2011, accounts for 6,838 of the almost 21,500 pure electric and plug-in cars eligible for the government's £5,000 grant scheme. The BMW i3 comes in third in the list with 1,534 registrations, while Tesla's high-profile Model S is in seventh place with fewer than 700 units shifted.

"Electric vehicle sales momentum is building at a phenomenal rate in the UK as the benefits of all-electric driving become more widely known and rapid charging infrastructure grows across the country," Paul O'Neill, electric vehicle manager at Nissan Motor GB, said in an emailed statement.

"We're delighted that the award-winning Nissan Leaf continues to dominate the pure EV market and we're on course to break more sales records as the year progresses."

After a slow start, 2014 saw electric vehicle sales quadruple to almost 14,500, with hybrids selling marginally more than pure plug-in models. Nissan recorded sales of 4,051 units in the UK, more than double the number it had sold the previous year.

This trend is expected to accelerate further as a host of new models come onto the market in the next 18 months, while at the same time the price of new models is falling and residual values are holding up.

Importantly, the government has been keen to support the sector, pledging £500m over the course of the next Parliament to turn the UK into a green vehicles hub. This includes funding consumer incentives and charging infrastructure, adding electric cars to public sector fleets, and a joint promotional push with industry to advertise the benefits of low carbon vehicles. Ministers have also backed a £1bn Advanced Propulsion Centre and launched a £10m prize for ideas to improve battery technology to boost domestic manufacturing.

Tuesday, 5 May 2015

Tesla is now selling used electric cars for lower prices

Theverge.com: Elon Musk now sells used cars. The billionaire's electric car company, Tesla Motors, quietly launched a pre-owned vehicle program at the end of April — a new scheme that offers older versions of its Model S sedan for lower prices than new models. The used cars still come with Tesla maintenance and reliability checks, and like other high-end car makers, Musk's company gives a 4-year or 50,000-mile warranty on pre-owned vehicles.

A Tesla spokesperson told The Wall Street Journal that the used cars would be stored at a Tesla location, allowing customers to collect their car directly, or have it delivered to their home. For now, limited supplies of the used Model S electric cars mean that the new scheme is currently only available in 11 US cities, with supplies coming from display models or owners who traded their older sedans in for new all-wheel-drive models under Tesla's trade-in schemes. But the company can expect an influx of older vehicles soon, as owners who bought their first-generation Model S on a three-year lease in 2013 return the car to the manufacturer.

THE USED CARS COME WITH A 4-YEAR OR 50,000-MILE WARRANTY

Used cars on sale via the program are available for between $60,000 to $90,000 — generally cheaper than the same vehicles can be found from individual resellers. The cheaper used cars, which are currently available for purchase via Tesla's official site, make the barrier for electric vehicle ownership lower, a move aimed to help the manufacturer snare new customers at the same time as it disposes of older vehicles that would otherwise clutter up its parking lots and facilities. The new program also gives Tesla a nice new revenue stream: the sale of used cars traditionally yields higher profits than the sale of brand new vehicles.

This is not a new idea however, and in fact is virtually the same scheme as the one we introduced in 2005 in the UK at GoinGreen with the first generation G-Wiz electric car. The new cars were sold online and also resold via the website, with the cars refurbished, warranted, and stored at a single London location for collection or delivery to customer homes.

Monday, 4 May 2015

Tesla’s 3 Huge Competitive Advantages

CleanTechnica.com: Tesla has several big competitive advantages, imho. I’m actually going to discuss 5 below, but I want to particularly highlight 3 of them, hence the title. [Full disclosure: I’m long TSLA… for obvious reasons.]

Tesla’s huge competitive advantages, imho, are:

1) The battery supply chain it is building for itself (and maybe some friends)



I thought it was obvious before, but it seems that many mainstream investors and analysts are just picking up on the fact that batteries = a big part of Tesla’s business advantage. But are their batteries really better than the competition?

Yes.

Well, it certainly seems to be so. Tesla’s battery packs are routinely estimated to be a good tier cheaper than other EV batteries. Part of that is thanks to the quality of Panasonic’s cells, but part of that is also Tesla’s continual improvement of the packs and the battery chemistries.

Tesla’s constant work to improve its batteries is one side of the cost-cutting calculus, but another important side is simply scale. Scaling up production results in greater manufacturing efficiencies, manufacturing improvements, and cost reductions. Tesla is scaling up its production big-time via the under-construction Gigafactory, and no competitor (other than BYD, perhaps) is showing that anything similar is in the works.

GM has announced the Chevy Bolt, which could theoretically compete with the Tesla Model 3 (on range and cost), but it is targeting ~30,000 sales a year rather than Tesla’s target of ~500,000. Why they huge disparity? Perhaps it’s the battery supply chain….

And note that Tesla’s batteries are valuable far beyond electric vehicles, and it is doing quite well winning stationary energy storage contracts. That just further boosts its battery production scale and competitive advantage.

2) Its wonderful Supercharger network



Another thing that Tesla really “gets” that others haven’t demonstrated to understand is that electric car consumers want ubiquitous fast-charging stations. Not somewhat scattered charging stations. Not slow-charging stations. But ubiquitous fast-charging stations. Other automakers have left this to the market to solve. Tesla has built its own Supercharger network (or networks), and nothing else compares to it/them.

Furthermore, rather than meddle with an annoying, penny-counting pricing system, the price of these charging stations is rolled into the price of Tesla’s cars, and Tesla drivers get the psychological relief of a lifetime of free Supercharging. While the cost may be the same (or even more), the convenience and the way we think about these things gives Tesla the strong upper hand.

Again, there’s no sign that another electric car manufacturer has picked up on the importance of the Tesla Supercharger network, as none of them are implementing anything that genuinely compares.

If the Chevy Bolt and the Tesla Model 3 come out at the same time with the same specs, I’m choosing the Model 3, in large part because of the Supercharger network.

3) Software that is several leagues above the competition



Another reason I’m (theoretically) choosing the Model 3 is because Tesla’s approach to software is a tier (or more) above the competition. It used to be that cars were big machines with small computers in them. In the future, cars are going to be computers on wheels, and Tesla is leading us there. Its software team rolls out over-the-air updates like we get on our smartphones, tablets, and computers, continuously improving owner vehicles.

Even a “recall” can be done virtually, Tesla has shown.

With an electric car, the improvement capabilities that come from better software are beyond imagine. I think it’s safe to say that cars of 2025 and 2035 will be very different animals than cars of 2015. If I were to put my money on who most leads us to those computers on wheels, I’d put it on Tesla (oh wait, I have).

4) A reputation for building superb products that “wow” people


Above are some of the tangible ways Tesla has set itself apart from the competition, but there are a couple of “intangible” strengths the company has developed as well. One is that it has developed a reputation for producing superb products. The Tesla Roadster transformed the image of electric cars from small, slow vehicles to blindingly fast vehicles of desire. An early investor, after driving away in his hot new sports car (I think a top-of-the-line Porsche) following the test drive of a Roadster prototype called the Tesla crew to angrily complain to them about how they had just ruined his expensive new gasmobile toy for him.

As if that wasn’t enough, Tesla produced the cheaper Model S sedan that ended up winning just about every big auto award. After some updates, it also set the record for quickest production sedan in history, with a 0 to 60 (mph) acceleration that beats even some supercars. It’s simply on another level.

Based on these initial two products, but especially the latter, people who “don’t like electric cars,” adore Tesla. With this reputation for excellence, again, who’s going to buy an affordable Tesla competitor when a comparable Tesla is on the market?

5) A reputation for wanting to serve customers in a direct, honest way — not just take their money

Another important intangible is that Tesla has shown repeatedly that it cares more about providing the customer with good service, a good product, and honesty than making a little more money off of them. That kind of reputation for integrity and morality is something long lacking in the automobile world, and there’s no doubt that customers have found it to be very refreshing and desirable. If tesla keeps it up, it’s going to gain more and more brand loyalists, and I haven’t seen any sign that other automakers have figured out how to adjust their business approaches to compete in this “human” side of the equation.

The Future Is… Tesla

Excluding the 2 subjective points at the end, I’m not seeing another automaker offer something comparable for 1, 2, or 3, let alone 1, 2, and 3. These are critical pieces of the electric vehicle future. If other manufacturers don’t quickly catch up by making some big (many would say risky… I wouldn’t) moves, they are going to end up 1) waiting a long time until they can catch up to Tesla in EV sales (assuming they ever can)… just looking at the supply side of the equation, 2) having to pay Tesla to use its Supercharger network, or simply offering inferior products year after year, and 3) offering inferior products year after year (and perhaps someday revolutionizing the software side of their business).

It’s hard to see any other manufacturers as being serious about electrification when they are so far behind Tesla on 1–3. Or, they are simply far too slow-moving to compete in this new sector, which is no better for their businesses and shareholders, but at least lets them off the hook a bit morally. In either case, though, it looks like Tesla dominates the future of automobiles.

Sunday, 3 May 2015

China to scale back EV subsidies

(Reuters) - China will scale back its subsidies for electric and plug-in hybrid vehicles faster than expected, while declining to give subsidies to traditional hybrids, according to policy documents posted on the finance ministry's website on Wednesday.

The final version of the policy largely confirmed a previously released draft in setting levels for new energy vehicle subsidies in 2016, but will scale back those subsidies by 20 percent in 2017-2018 and by 40 percent in 2019-2020.

The draft had only called for two 10-percent reductions by 2020.

Traditional hybrid, which rely mostly on gasoline engines, remains a key peg of many company's strategies in China, with Toyota Motor aiming to launch Corolla and Levin hybrid models later this year and Geely Automobile working on a hybrid version of its Emgrand 7 midsize sedan.

By rolling back subsidies faster, the government wants to pressure automakers to reduce their currently high price for new energy vehicles, rather than relying on subsidies to profit, said Yale Zhang, managing director of consultancy Automotive Foresight in Shanghai.

The highest subsidy for a single car is roughly 100,000 yuan ($16,119.7), as local authorities generally offer subsidies to match those of the central government, so a 20-40 percent reduction is quite large, he said.

The government subsidy scheme, along with an aggressive ratcheting up of emission and fuel economy standards by 2020, aims to bring relief to pollution choked cities in the world's largest car market.

Chinese and foreign automakers unveiled plans for a slew of new energy vehicles at the Shanghai autoshow last week in an effort to meet the government's stringent goals.

Shanghai GM, a joint venture between General Motors and SAIC Motor, said at the show that it would develop 10 new energy models by 2020.

The policy is "sending a signal to the car makers that the government is quite determined to use some of the stick instead of the carrot by the end of this decade," Zhang said.

The scheme lays out in detail the subsidies based on the type of vehicle and the distance it can travel.

Electric and plug-in passenger cars will receive between 25,000 and 55,000 yuan per vehicle from the central government.



Notably absent from the document are traditional hybrid vehicles, whereas plug-in hybrids depend primarily on an electric battery. ($1 = 6.2036 Chinese yuan) (Reporting by Jake Spring; Editing by Anand Basu)

Bolloré Intends To Launch Bluesummer This Summer



Bluesummer


Bluesummer

InsideEVs.com: Two years after its unveiling in 2013, Bolloré finally decided to launch its Bluesummer electric cars on the market.

The cabriolet is based on the Bluecar and has the same 30 kWh battery and 50 kW motor.

Autonomy stand at some 200 km (124 miles) in city or around half of this at higher speeds outside of the city. More data is available at the dedicated website (only French).

In the upcoming months, about a dozen rentals in several cities on the south of France will get Bluesummers.

There should eventually be an option to buy the cars for some €17,700 (including incentives) without batteries (rented from €79/month).


Bluesummer


Bluesummer


Bluesummer


Bluesummer

Plug-In Hybrid Version of Peugeot 308 Announced

CleanTechnica.com: Peugeot recently unveiled the 308 R Hybrid — a plug-in hybrid version of its popular compact hatchback that possesses a fairly notable spread of specs, based on the recent press release accompanying the unveiling.

The Peugeot 308 R plug-in hybrid hits 0-62 miles per hour (100 kilometers per hour) in 4 seconds, features a combined horsepower of 500 (373 kW) and a maximum torque of 538 lb-feet (730 N·m), and ‘only’ emits 70 grams of carbon dioxide emissions for every kilometer traveled.



The plug-in hybrid is home to 3 different sources of power to provide these combined specs — a 4-cylinder 1.6-liter THP 270 S&S gasoline engine, and two 85 kW electric motors (one to each axle).

The Director of Peugeot Sport, Bruno Famin, commented: “Peugeot Sport’s expertise applies an uncompromising approach to meeting targets. With our experience in hybrid vehicles developed with the Peugeot 908, the high-performance hybrid powertrain fitted to the 308 gives a glimpse of the potential for ultra-sports models in the future.”

The model features a 3 kilowatt-hour (kWh) lithium-ion battery pack (located under the rear seats), as well as a 50-liter gas tank located able the electric motor.

The 308 R Hybrid features 4 different driving modes — a performance oriented “Hot Lap” mode (with access to all 3 power sources); a “Track” mode which delivers 400 horsepower and 391 lb-feet of torque (via the gas engine and the rear electric); a “Road” mode providing 300 horsepower and 295 lb-feet of torque (which relies mostly on the gas engine, while receiving some assistance from one of the electric motors); and, lastly, a ZEV mode that relies mostly on the rear electric motor.

This certainly looks like a nice plug-in hybrid from Peugeot at an initial glance, and it’s nice to see Peugeot finally getting into the game in a decent way. (I’m sure it had nothing to do with EU emissions/efficiency rules.)

Audi: 300 mile electric car in 2018 or 2018

CleanTechnica.com: Audi Electric SUV With 300 Miles of Range Slated For 2018 or 2019

The oft-rumored Audi electric SUV coupe — presumed to be the “Q6″ — just became a lot more concrete, following comments made by Audi CEO Rupert Stadler.

The Audi head noted that the electric SUV coupe would be arriving sometime in 2018/2019, that it would feature a range of at least 500 kilometers per charge (~310 miles), and that it would be “sexy and sporty” — during an interview with the UK’s Auto Express. (Presumably, it’ll only be sexy and sporty, not scary, or posh, or baby.)

Worth noting is that the above-stated range likely has something to it, and isn’t just talk, as Stadler commented that a substantial range such as that was a “must.”

No argument there — without a range in that ballpark, how would it compete with the Model X or any of the other electric SUVs due by then?

Of course, it should be remembered here that the European testing cycle isn’t as stringent as the one used in the US, so “300” may very well mean something more like “250.” Still, a good number, and probably more than enough for most people’s uses/driving habits.

Still, I can’t help but feel that 2018/2019 is a bit late for such a range. According to Stadler, though, the timing is perfect — because that’s when DC fast-charging infrastructure is expected to be fairly built out.

While I’d generally consider this good news, I still can’t help but feel like Audi isn’t putting much into its pursuit of the EV market — if it isn’t careful, it could very well get left completely behind. Interesting times for the auto industry, really — I wouldn’t be surprised to see a lot of major players lose substantial market share in the relatively near future.

Saturday, 2 May 2015

Tesla Reveals Battery Storage Solutions – 7kWh, 10 kWh, 100 kWh



Tesla Outlines Plans Past Just Building Electric Cars On Thursday


Elon Musk Announces Tesla Energy – Humans “Shouldn’t Try To Win The Darwin Award”, But Rather Get Rid Of Fossil Fuel Power Generation

CleanTechnica.com: Late Thursday night in Hawthorne, California, Tesla revealed its “missing piece to building a sustainable future,” which the company says puts the world on the road to “enabling zero emissions power generation.”

Tesla notes that the world currently uses 20 trillion kWh of energy annually, which is:


“Enough energy to power a single family home for 1.8 billion years or supply energy to a nuclear power plant for 2,300 years (or launch the Falcon 9 rocket seventeen million times).”

Update: Watch the entire Tesla Energy presentation by CEO Elon Musk (video at bottom)

The company says that the Tesla Energy products launched today will help to start to wean the world off fossil fuels.

More specifically the company is offering “a suite of batteries” for residential, business and utility use. Those solutions are outlined below.

As for what was available before today, Tesla CEO Elon Musk was very candid, “The issue with existing batteries is that they suck. They are expensive, unreliable and bad in every way.”



Tesla Energy “Power Packs” (Using A Solar PV System) Powered The Presentation

The Tesla CEO said that the first residential units will start shipping in about three months, but that the initial ramp will be slow, as early batteries will be built at the company’s Fremont factory.

However, next year production will switch to Tesla’s Nevada Gigafactory, and things will quickly speed up.

As a special bonus, the whole presentation made from California was done off the grid, via the company’s new utility grade “Power Packs”


The Tesla Model S And The Powerwall
Powerwall Home Battery


The PowerWall

The Powerwall is available in two sizes, 10kWh (optimized for backup applications), and 7kWh (optimized for daily use).The cost for these units are $3,500 and $3,000 respectively (to installers) and both can be connect to solar PV or the grid.

We think this pricing says a lot about the raw costs of batteries these days for the company, and bodes well for the future Tesla Model 3.


“The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with solar power, the 7kWh Powerwall can be used in daily cycling to extend the environmental and cost benefits of solar into the night when sunlight is unavailable.”

Not enough power? No worries, you can easily double, triple (or go up to 10x) the output by combining units together.

The Powerwall not only contains the li-ion battery, but also a liquid thermal control system and software that can receive dispatch commands from a solar inverter.

Conservatively thinking, we imagine that most persons looking to leave the grid (or mostly leave the grid), would conservatively need two or three of the 7 kWh units to achieve that status…and the prerequisite, appropriately sized, PV system of course.


Need More Power? No Problem


The battery can provide a number of different benefits to the customer including:
Load shifting – The battery can provide financial savings to its owner by charging during low rate periods when demand for electricity is lower and discharging during more expensive rate periods when electricity demand is higher
Increasing self-consumption of solar power generation – The battery can store surplus solar energy not used at the time it is generated and use that energy later when the sun is not shining
Back-up power – Assures power in the event of an outage

The Powerwall Home Battery increases the capacity for a household’s solar consumption, while also offering backup functionality during grid outages.


Powerwall Coupled With SolarCity PV Installation

Some specs on the Powerwall Residential system:


Tesla Energy “Powerwall” Specs
Tesla Energy for Businesses

As per the company:

Based on the powertrain architecture and components of Tesla electric vehicles, Tesla energy storage systems deliver broad application compatibility and streamlined installation by integrating batteries, power electronics, thermal management and controls into a turn key system.

Tesla’s energy storage allows businesses to capture the full potential of their facility’s solar arrays by storing excess generation for later use and delivering solar power at all times. Business Storage anticipates and discharges stored power during a facility’s times of highest usage, reducing the demand charge component of the energy energy bills.

Energy storage for business is designed to:
Maximize consumption of on-site clean power
Avoid peak demand charges
Buy electricity when it’s cheapest
Get paid by utility or intermediate service providers for participating in grid services
Back up critical business operations in the event of a power outage


Tesla Energy For Utility Is Infinitely Scaleable
Tesla Energy for Utility applications – “The Power Pack”


Tesla CEO Elon Musk Introduces the 100 kWh Powerpack

Tesla has also designed large scale systems designed for utilities. These units come in 100 kWh “battery blocks” and start in total capacity from 500 kWh up to 10 MWh+.

Tesla say the units “are capable of 2hr or 4hr continuous net discharge power using grid tied bi-directional inverters.”

Systems support applications include: peak shaving, load shifting and demand response for commercial customers while offering, renewable firming and a variety of grid services at utility scales.

No pricing was stated on this product, but the company did offer up what their “Tesla Utility Storage” is designed to do:
Firm up renewable generation by reconciling the intermittency of power from these sources and storing excess capacity to dispatch when it’s needed.
Increase resource capacity. Utility Storage acts as on-demand distributed power generation, contributing to the overall generating capacity while adding resiliency to the grid.
Ramp Control. Utility Storage can act as a buffer while the power output from a large generation source is ramping up or down, delivering power instantly to smoothly transition output to the required level.
Improve power quality by preventing fluctuations from propagating to downstream loads.
Defer costly and time-consuming infrastructure upgrades.
Manage peak demand by deploying power within seconds or milliseconds.


Tesla Energy Utility Design

Those interested in having a home Tesla battery can reserve units now at Tesla’s new “Powerwall” mini-site here.

Friday, 1 May 2015

Ford: 150kW Charging Coming Soon

The Verge.com: Ford, like the entirety of the auto industry, is in a cycle of rapid change: The planet is getting hotter. Fossil fuel, regardless of price, is falling out of favor. Young people don't want to own cars as badly as they used to. Services like Uber and Lyft are upending the notion of personal transportation altogether.

That makes Mike Tinskey's job a particularly interesting one. Tinskey is Ford's global director of electrification and infrastructure — that is to say, it's on him to make sure electric cars and hybrids get into customers' hands and work well for them. He's also heavily involved with some of Ford's future mobility projects — the suite of forward-looking ideas cast by Ford CEO Mark Fields at CES earlier this year — which means he's got a very full schedule, indeed.

I had a chance to speak with Tinskey before a panel at the Tribeca Film Festival this week, where he was planning to talk about future trends in transportation. We met at a nearby coffee shop in the heart of Manhattan, one of the most car-unfriendly locales in the world.

Chris Ziegler: If you could just give me an overview of the projects that you’re responsible for?

Mike Tinskey: Yeah, so, I like to describe my role as a bit of the clean tech.

It’s a very interesting-sounding title. I was intrigued.

My title is Global Director of Vehicle Electrification and Infrastructure. It really reflects the roots of my group, which is, "how do we make our electric vehicles successful around the world?" So that’s where we really started — how do we work with the grid operators, how do we integrate our vehicles, how do we get the standards, how do we get the charge station into the customers’ garages. And then the group grew, and we really started to focus on mobility and sustainability.

So I’m actually part of a group called Sustainability — so think about all the things you do in a vehicle that waste time or energy… finding parking or car-sharing programs and how can we make those more efficient? How can we recharge an electric vehicle faster? How do we attack some of these challenging mobility challenges that are hitting us? Cities like [New York] that are growing, and the number of magnet cities in the world are actually increasing. So what my group does is both advanced projects and current solutions that solve alternative fuel, electrification, and mobility solutions.

So not strictly EVs?

No, no. So yeah, what I’ll talk about [at the Tribeca Film Festival] is a couple of those projects that we’re doing, which are mobility related. So for example, say, if you had to carry on your back the amount of energy that you use, what does that look like over time? From the 1800s to now? And what is in that backpack — is it wood or coal? So I’ll be talking a little bit about how that’s evolved over time and how renewables have really impacted what you would have in your backpack and the challenges that come with that, too. How can we, as a vehicle manufacturer, help solve some of the grid challenges that come from that? So that’s kind of the Cliff’s Notes version.

So Toyota, just about an hour ago, put out another big push on the Mirai, which I’m sure you’re familiar with. I know that hydrogen is a very controversial topic, even in the alternative fuel world, and if I’m not mistaken at one time Ford had a fuel cell program, maybe on the Focus? Many years ago. I’m wondering, what happened to that, and what’s Ford’s current view of hydrogen in general?"FORD IS VERY MUCH IN THE 'POWER OF CHOICE' CAMP."

Yeah, so, Ford is very much in the "power of choice" camp, where we will take a single platform and we’ll offer it in multiple powertrains. And we’ll let the customers tell us what works for them. And so, a great example is, say, the Ford Focus. We offer it as a diesel in Europe, we offer it in gasoline here, in pure electric here, and the customer can tell us what works for them. And that’s our approach.

So when you talk about hydrogen and how does it fit, we very much take a similar view. We have an active partnership with Daimler and Nissan to develop a fuel cell. We’re doing a lot of our research work up in a lab we have in Vancouver. The challenge with fuel cells isn’t necessarily in the stack; it’s really infrastructure related. How do you get the hydrogen produced and distributed economically to make them viable? So if there’s some public-private partnerships and infrastructure and it becomes more viable, I think that will be the tipping point of whether or not hydrogen will be successful.

So speaking of infrastructure, what’s the state of the art with fast charging? Is [fragmentation of standards] a concern for you? Where do you stand on that?

Well, if you look at it today, you’re right, there’s a lot of vying for who’s going to have the future standard. You have CHAdeMO, you have Supercharger, and you have combo or SAE, which is all the other automakers. If you were to map out the number of electric vehicles or plug-in vehicles that are going to have each connector, I think you’d quickly find that the combo connector will be the most widely supported. So we’re bullish on that coupler, and we’re fully supporting it.

But what’s happening is something that’s pretty interesting — if you were to rewind a couple years ago, we were talking about battery swapping because you can’t charge the batteries fast enough, and we’re seeing — in fact, we’re even doing an experiment on how fast can we charge. So one of our mobility projects is how quickly can we get energy into a lithium ion battery, and what is the limit of that. And what are the limits of the infrastructure? In other words, what will the utilities allow us to provide during peak times? And frankly, that whole space is moving so quickly that I think that very soon — say, next-generation products — we’re going to see 150 kilowatts. So today, you’ll go out and find a fast charger and it might be 40 kilowatts, maybe 50 kilowatts. I think in the very near future you’re going to see 150 kilowatts. And even some automakers are talking about going further than 150.

On the same connector?

On one connector, yeah. The same connector because it has enough metal to support the higher power. It was really the lithium ion battery at the other end that was the bottleneck. And then the utilities were concerned about drawing that kind of power. So I think what you’re going to see is… I think battery swapping is much, much less likely now. Fast charging is becoming much more fast, high-power. And I think you’re going to see an emergence of these next-generation vehicles become much more capable and then have this fast-charge network that can charge them very quickly so that theoretically the battery electric vehicle doesn’t become a second or third vehicle, it becomes perhaps a primary vehicle.

And we’re talking 200-, 300-mile range on these vehicles?

Yeah, I mean, Ford hasn’t announced our plans, but many manufacturers have announced the next-generation products, and those are coming in with much higher range than their current products. So think about that scenario where you have a BEV that can get those kinds of ranges in an area like Manhattan, that’s plenty of range for your inner city. But if you wanted to go from here to Boston or what have you, now we’re starting to think that you can recharge in 20 minutes, and you can put the stations strategically along freeways, and you end up with a very impactful combination.

And that’s 0 to 100 percent?

That’s 0 to 80 percent. What happens, as you probably know, after 80 percent we have to back off the charging. You can still keep going, but it’s longer time.

So it’s like, what, a couple hours for a full charge?

No, no. On a fast charger? No, it’s 20 minutes to 80, then maybe 35 or 40 minutes to get a full charge. But if you were looking at your value of time, you get the most value by going to 80 percent and then going to the next station."SOME UTILITIES ARE VERY PROGRESSIVE [...] AND OTHERS ARE NOT SO PROGRESSIVE."

And so the concerns with utilities have been smoothed over?

No, I would stay there’s still a lot of work to do. There’s this thing called demand charges, I don’t know if you’ve ever heard of that. It’s a charge that the utility will pay, and if for just one second you’re using a certain amount of power, you’re charged for the whole month at that level. So the ability to use that power. It’s called a demand charge. And these can be thousands of dollars per month. Even just to have access to the power. So we have to work on that because we’ve got to make it… Some utilities are very progressive and they’ve reduced or eliminated their demand charges for electric vehicle charging, and others are not so progressive.

Talking about these extremely hot, in-demand chargers, I’ve heard several anecdotes now, particularly in California about charger rage. EVs have become successful enough now so that demand significantly outstrips supply for the chargers, especially during the day. Is that something that you’ve looked at at all? Any creative ways to solve that?

So all of our plug-in vehicles have an embedded modem. So when the customer downloads the app, the data is aggregated so we can see how our customers are using the vehicles in terms of charging. And well over 90 percent of them are using home charging, or I guess I should just say nighttime charging. We’re assuming it’s home, but it’s all aggregated, so I don’t know if it is their home. But the point is, this nighttime charging is getting them to where they want to go. So if you look at the order of importance on standard charging, it’s home, then workplace, and then public. And the public is just a couple percent of customers, and frankly, that number’s been going down because what’s happened is those chargers used to be free and now business have enabled to pay for it, and usage has really… I think people were using a lot of those stations because they were free. So, I guess the bottom line is, we’re really putting our focus on home and workplace, and then we’re now talking about how do we work as an industry to do this fast charging and get fast charging out there.

Have you found that the dramatic decline in gasoline prices has sort of shifted your priorities at all? You mentioned that you’re not just working on EVs, but you’re also working on conventional solutions."...THE DEFLATED FUEL PRICES, WE VIEW AS A SHORT-TERM PHENOMENON."

I think that in our industry, the deflated fuel prices, we view as a short-term phenomenon. So it hasn’t really impacted any of our long-term strategies. We know where we need to be in the future, and we also know that electrification is probably one of our key enablers in our toolbox, so really our strategy has to change.

I do think that our plug-in hybrids are continuing to do really well, and there are a lot of reasons for that. I mean, if you look at a city like this where you have stop-and-go traffic, you’ve got idle times because of congestion or lights, the plug-in hybrid is a great product. And it’s driven all of our accessories into electric. So our air conditioner compressor is electric, so you get all the creature comforts, and your engine’s not running. You’re just drawing the minimum amount of power you need. And so we’re really seeing that. And every time you stop, that energy’s going back into the battery with [regenerative] braking. So those products I just see proliferating even more.



The Ford Focus Electric.

Is there a lot of technology sharing between those groups? Between the hybrid group and the EV group? Or are they very independent projects?

In fact, they’re one group. Hybrid, plug-in hybrid, and battery electric vehicle group is all one group. And the same teams launch all those technologies.

I’m assuming that you’re very tightly integrated with the announcements at CES this year, which were sort of bonkers future visions.

I like that, "bonkers." [Laughter.]

It’s interesting to see how tightly integrated Ford has become with CES, which was not an auto show at all 10 years ago, and now it’s the auto show to kick off the year. But they were all very non-conventional announcements, right? So talk a little bit about those and what you’re most excited about and what you’re most heavily engaged in right now. What’s the nearest-term to being a real commercial product?

If you were there, you heard sort of the background on why we’re doing these experiments, right? There are 25, and it’s driven a lot by urbanization and changing consumer interest, growing middle class. So those are the pillars. A couple of the experiments that were highlighted there that my group’s actually working on is, one’s called Parking Spotter. So you can imagine as cars are driving down the street right here in front of this shop, they’re able, with an existing sensor on the sides — we have a parking assist that helps you park the vehicle. What we’ve done is create a parking database of all parking in the United States. Just the locations. And one of our prototype vehicles is in one of those locations and driving less than 10 miles per hour, we enable both left and right sensors, so essentially it becomes a probe — a parking probe. So when it drives down a street like this, we’re mapping "occupied, not occupied, not occupied," and then we’re putting it in the cloud for our other customers. So you might want to call it crowdsourced parking.

Infrastructure is very expensive for parking… if you were to put sensors, the traditional ultrasonic sensors cost $500 or $600 per spot. If you were to use cameras, you might be in the $200 to $300 per spot range. And so this technology, which is already on our vehicles, is almost essentially a freebie because it’s just software. So that one’s really interesting… we’ve got a vehicle running down at Georgia Tech that’s testing in all different types of lots, angled parking, parallel parking, back-in parking, front-in parking, and we’ve been really happy with the results."WE OBVIOUSLY PATENTED THE TECHNOLOGY, BUT WE HAVEN’T QUITE FIGURED OUT WHAT WE’RE GOING TO DO AND HOW WE’RE GOING TO PACKAGE IT."

And so that’s something that will be coming to production vehicles?

Well, no, we’re not that far. So we’re going to go into pilot stage — we’re going to put it on several vehicles, in fact we’re going to ask customers that already have this parking assist feature on their vehicle, we’re going to see if they want to participate. And it’s basically a software change on their vehicle, and then they become probes, and we’ll see how that goes. And then we’ll see where we go from there. But the concept is very sound, right? If you can get all the vehicles looking at parking as they’re driving around, and you get real-time maps, I think it could do a lot for both CO2 from an emissions standpoint, [and] congestion would go down because you know what happens when you’re looking for parking, right? You’re driving slower, you’re distracted. So it can really be a big improvement there.

And that’s a feature where it seems like a rising tide raises all ships. If you share that data with other automakers and they share with you, everybody wins. So have you had discussions with any industry groups?

Well, that’s a really good question. I think the answer is we’re trying to find the right business model. How do we all work together? What does it look like? Is it a third party that aggregates it for us? So I don’t know… we haven’t approached other OEMs yet. We obviously patented the technology, but we haven’t quite figured out what we’re going to do and how we’re going to package it. But to be a little more specific, 2014 was to prove its viability from a technology standpoint, and like I said we’re very pleased. 2015 is, alright, how do we take it to the next level? And that’s where we’re at right now.

Last year, I got a Ford demo at CES of the [vehicle-to-vehicle] stuff, which I thought was very interesting. And that’s getting closer to be a regulatory thing. So is that something that you’re doing anything with? Because I know there are several levels of functionality there.

That’s right. And connectivity in general is going to be great. V2V is going to be there. As you said, it’s regulatory. But we have to get infrastructure in place, which is once again regulated. So we’re going to see it."SO PERHAPS A REMOTE DRIVER [...] COULD AUGMENT AUTONOMOUS."

One of the other projects that you may have seen at CES is called Remote Repositioning. I’m bridging a little bit to that one, because I think it also answers some of your questions… so the history there is, we noticed car sharing and all of these... Zipcar types of arrangements were becoming more prevalent. In Paris, or maybe even here, the Citibikes, my guess is there’s a truck that goes around at night and puts them back in the right spots. So in Paris there’s the same thing. So we said, isn’t there a technology solution to that? So what we did was we said, what can a cellular network do — you know, your typical AT&T LTE network — and can we put a driver in a vehicle remotely and move those vehicles around at night to get ready for the next day of sharing? And so we recreated in a laboratory three screens, four cameras on the vehicle, we used a golf cart as a surrogate, using just production networks, and we could drive that vehicle from across the country and put it where we want and almost replicate the experience just as if you were in the driver’s seat.

So that one is really interesting to me for a couple reasons. One, it can help put the repositioning at nighttime hours. Two, it could be a virtual valet, so even like in front of here, we could’ve gotten out and then a call center could’ve taken the vehicle and put it in a parking space, so you don’t have to get wet [from the rain] or you don’t have to go hunting for a parking space. Or the other use case that we’re pretty excited about, we’ve been pretty open about our autonomous plans, and that technology is moving and we know we’re going to have it on vehicles in the near future, but we don’t think policy is moving as fast. So perhaps a remote driver during certain conditions or in certain states or in certain areas could augment autonomous.

So you’re saying that from the driver’s perspective, the car will be self-driving, but really there’s someone else driving it from afar for them?

That’s right. If you’ve ever had the pleasure to go to, for instance, China, if you’re not aggressive to try to turn left, there will be people that will walk in front of you all day long. And an autonomous vehicle would end up sitting there forever. And a driver normally just has to kind of say, "Alright, I’m going," and the people will stop and the car heads through. So there are going to be situations where a remote driver can actually pilot a vehicle better than an autonomous in certain conditions. Or just because of policy, that might be the way that we have to deal with it.

So Remote Repositioning is kind of neat because we’re using existing cellular networks, we’re using existing vehicle technology. The cameras are just production cameras, and you can be anywhere in the world. You can assign yourself to this vehicle for five or 10 minutes and put it where it needs to be, link up with the next one, et cetera. So we’re quite encouraged with that one as well.

To what extent are you getting pushback over privacy and security concerns? On that one in particular, but more broadly with any upstream data from the car.

Yeah, so, Ford, you heard this at CES right? Ford has this policy that it’s your data, we’re shepherds of that data, but it’s the customer’s data. We have these privacy principles, and our goal is to be leaders and be good shepherds of the data. We haven’t, frankly, gotten any pushback from our customers. Everything is spelled out and they opt in, et cetera. But we’ve been very careful and we intend to continue to be very careful with how we manage and how we aggregate and how we put in all the mechanisms that we think are necessary to produce that."WE HAVEN’T, FRANKLY, GOTTEN ANY PUSHBACK FROM OUR CUSTOMERS."

So in the case that we just talked about, Remote Repositioning, not only are we using bank-level encryption on that data, but the way we would implement that if we were to go into production would have multiple safeguards. For example, we would never let Remote Repositioning happen unless the customer selects it within their shifter, right? So if the customer is just driving their vehicle down the road, that module isn’t even enabled.

Well, but there’s an obvious counter to that, which is that it would be an amazing tool for vehicle recovery, if a vehicle is stolen, right?

[Laughter.] Yeah, there’s one. Yeah, we haven’t even thought about that use case.

And then you have to think about is the privacy and security risk worth the trade-off.

That’s right. And we’ve always erred on the conservative side. So yeah, I think we have got — I think the whole industry, not just the auto industry still has a lot to learn on that. I mean, the amount of data that is being potentially shepherded, it grows so quickly.

And it’s still the Wild West. It still feels like it’s the young days here where networks are just now becoming mature enough to support this stuff.

Yep.



A "driver" uses Ford's Remote Repositioning system to drive a golf cart thousands of miles away.

One thing that I thought was very interesting from the CES announcements is that a lot of this is focused on non-traditional business models for the auto industry in general, meaning, potentially you’re not selling as many cars because you’re working on ride sharing and car sharing — things where people don’t have to own cars anymore. To what extent is that a concern for you, and how are you alleviating those concerns?

Yeah, it’s a really good point. At this function I’m at, I was just speaking to a few people, obviously all New York City folks, I asked them how did they get here today. I didn’t find a single person who drove their own car. So if you use this as a bit of the trend, you know, we have to change. We have to offer multi-modal mobility solutions, right? One person took a subway to a bus. There wasn’t a car in that person’s route. So that’s why we’re doing the experiments, is to really just understand — especially the millennials, how much their attitudes are changing. How smartphone usage is increasing, how the ability for them to find or share their vehicle. Their appetite to share their vehicle is over 50 percent of people we’ve surveyed, where somebody in my generation, I would be [less likely to share my vehicle]. So if we don’t embrace these trends… we’re definitely on the embracing side."I DIDN’T FIND A SINGLE PERSON WHO DROVE THEIR OWN CAR."

And I’m assuming, maybe this isn’t true, but I would imagine this breakdown is very different between urban, suburban, and rural environments, right?

It is. And if you look at it from the technology solutions, once again, going back to our electrifications, we find our plug-in hybrids are fitting our suburban commuter really well. In fact, we did this really interesting experiment where we offered our employees a really good rate on a plug-in hybrid, it was just over a year ago. We had a lot of takers. And we had data, so we knew how often they were driving in electric versus gas mode. And the bottom line is they were driving three out of every four trips in electric mode. They were driving four trips on average per day. But they were driving that last trip every day on gasoline.

Just because their battery was depleted at that point?

That’s right. We have a 19-mile battery in that product, the C-Max Energi. Then we put workplace charging in, and lo and behold, we find that Monday through Friday is all-electric. So they’ve got that fourth trip now on electric. So I guess what I’m getting at is it’s just interesting to see how in different segments, and where I come from it’s a lot of suburban commuters, they’re getting everything they need from that electric, and they’re getting it from very low-cost, very clean electricity. We just installed a big solar array on the back of our world headquarters that’s powering 28 charge stations. That’s going to be commissioned very soon this summer. So, you know, the whole way we do transportation is not only what we’re driving, but where the energy is coming from; [it's] really evolving.

To what extent is Ford engaged on that end of it, how the energy gets made?

So I guess you would say we’re pretty engaged. From a personal level, so if you had a home and you wanted to put solar on it, we have a partnership with SunPower where you can get a discount if you bought a Ford plug-in. You get a discount on solar, so we call it "EV plus PV" — electric vehicle plus photovoltaic. So that’s sort of a partnership we did.

The other thing we do is, utilities, electricity tends to be cleaner at night, believe it or not. A lot of hydro in the US, it flows at a higher percentage at night. Wind blows stronger at night. So if you look at percent renewables by time of day, generally the nighttime hours are a little bit cleaner. So if you make that assumption, utilities are trying to do time-of-use rates, so you would pay a different rate during the day than you would pay at night, so we created this big database we call Value Charging. And we know that if you put in your zip code and you’re on a time-of-use rate, we know the hours when you get the lower rate, which tends to be cleaner. It’s generally 11PM to 6AM, or midnight to 6AM. So the database knows that, so if you come home from work and plug in, it doesn’t start charging until those lower rates. So we do that type of work, and then we work with utilities quite a bit to understand if they have a feed they can give our customers — if they have a lot of renewable, we can put it into our app and notify our customer. We call it our green app. They can say, I only want to charge when the electricity is the greenest. We give them that option as well.

I’m assuming you have some data on this — I don’t know how much you’re able to share — at what point is the crossover where we’re selling over 50 percent alternative fuel vehicles, hybrids, and electrics? Is that coming soon?

We don’t really talk publicly about it, and I think part of it is there’s a lot of unknowns, meaning fuel prices and all the other things. What I can say is, one, if you look at our portfolio over time — so we’ve got what we call the power choice. We’ve got our EcoBoost, which is our downsized, turbocharged, direct injection. Then we have all of our electrification, so that’s battery electrics, plug-in hybrids, and hybrids, and then we have our natural gas and alternative type fuels. If you look at that portfolio over time, one of the biggest factors that we’re going to have to do is recapture braking energy and shut down engines during congestion, lights, start-stop, that kind of thing. So you start adding up where we have to take the product portfolio in the future, electrification is going to be a big element of it."AND WHEN WE CROSS 50 PERCENT? I DON’T REALLY KNOW."

And when we cross 50 percent? I don’t really know. I can tell you right now we’re only running about 3 or 4 percent electrified products, and that number’s dipped down about a full percentage point since fuel prices have fallen. So we’re still in the early days, but I think we’re going to see an acceleration here in the next couple years. All manufacturers are likely going to embrace it, because it’s in everybody’s toolbox and it’s the right thing to do for fuel economy.

Is that acceleration driven by economies of scale? As you have more of these vehicles, the difference in price between the gasoline model and the hybrid model goes down?

That’s right. There’s a big part of that. I mean, battery prices in general. Power and electronics are the other big piece in terms of the cost. So if we can get scale on the battery side, if we can get the price points down, then you’re going to see it. I don’t know if you had an opportunity to get to the Detroit show this year, but I think you probably saw the trend… plug-in hybrids were everywhere. And I think you’ll continue to see that.

In fact, one of the things I like to tell people is if you look at the history of Ford’s electrification — we’ve done electric vehicles before, but our mainstream products. Our first hybrid was the 2004 Ford Hybrid Escape. And if we look at that hybrid it was a 3-liter engine, it had a very small battery.

And that was co-developed with Toyota, right?

No, that was a Ford-only product. A lot of people think that, but it was a Ford-only product. If you go to our second generation of hybrids, they went down to a 2.5-liter engine — this was the last generation — and then they had a nickel metal hydride battery that was just under a kilowatt-hour. So a little bigger battery, different technology in that it had a smaller engine. And then you come to our current generation of product, we’re at a 2-liter — so it went down another half-liter — and we went to lithium ion. And we went just over one kilowatt-hour. And our plug-in hybrid we went to about an eight kilowatt-hour, and then our battery electric we went to about a 23 kilowatt-hour.

So if you call that a trend, the engine’s getting smaller and smaller, and the electric motor and capability is getting bigger and bigger. So if you were extrapolating that out, if that was a trend, you can start to see that our plug-in hybrids are becoming more electric. And that’s sort of the evolution that I’m predicting is happening, because Americans need their freedom. They really want to be able to go on their weekend trips, they really want to go far distances. But during the week, if they can get everything on electric, that’s a fantastic compromise. So I think we’re going to see an evolution on that side.

And you talked about battery manufacturing scale. Are you actively bumping into those limits? Gigafactory’s gotten a lot of press over the past year, and obviously it’s a huge constraint for an all-electric vehicle, but is that a problem for you, and if so, how are you addressing it?

I can’t really comment directly on Tesla’s strategy, but I would say this: there’s a breakpoint that we all will get if we can collectively get the volumes. So there’s no surprise here that our Focus Electric is using the same cells as the Chevy Volt, we use the same supplier.

A123?

No, it’s called LG Chem. Holland, Michigan is the plant. So, just think about under that scenario, if those volumes grow and that supplier is able to collectively get the volumes, then we all will enjoy the same scale. So what I’m expecting to happen in the industry is, you know, there will be the Tesla strategy — stationary plus vehicle and put it all under one roof and produce a lot of them — and then there’s basically going to be our strategy, which is find the best-priced cell and battery pack that we can and let the supplier get the volume and scale by going across the industry. And I really think that it’s worked for us many times, and that’s how the supply base works, and so I think it’ll be an interesting few years to see how it all pans out, but we’re very confident in our strategy.

So Ford has the Focus Electric, and then you have products like the Prius, where it’s a dedicated hybrid line. So you have two strategies there, one is take an existing vehicle and put in a different drivetrain, versus a line of products. Would Ford ever consider making a dedicated EV or strong hybrid product that sort of showcases the most advanced EV technology available, and just sort of put it out there as flagship EV product?"I DO THINK THAT WE’RE GOING TO SEE MORE ELECTRIFIED PRODUCTS COME TO MARKET."

It’s a good question. Let me back up and explain our current strategy, which, as you stated, we take our global platform and then have different powertrains in it, and that’s worked really well for us. For example, in this climate right now, when we’ve seen deflated fuel prices, we have seen a shift back for some customers buying traditional powertrains. And so that strategy works really well, we can adjust our manufacturing mix based on the customer pull. But to your point and to the future, I can’t really comment specifically, but I do think that we’re going to see more electrified products come to market.

We just saw the Continental concept launch. I was surprised at what a small engine was in a big car, but it was just a gasoline engine, I believe, not a hybrid. Can you scale electrification up through your largest vehicles, both sedans and SUVs, trucks? Could you have a hybrid Explorer or Expedition, or F-150?

Well, I mean, technically, the answer’s yes. The question is whether you can get a viable business case. Can you provide all the customer attributes of towing and everything that you want? So I can’t really talk about our future products, but I can tell you that if you look at lightweighting now, if you look at what else can we do to get to where we need to be for fuel economy and do our part for the planet, electrification is where everything is likely going to have to go. So I think it’s one of our strongest tools in our toolbox, and so… stay tuned.

Tesla Energy announced

bbc.co.uk: US electric carmaker Tesla Motors has unveiled batteries that can power homes and businesses as it attempts to expand beyond its vehicle business.

Chief executive Elon Musk announced the firm would build batteries that store solar energy and serve as a back-up system for consumers during blackouts.

The device would allow consumers to get off a power grid or bring energy to remote areas that are not on a grid.

Tesla plans to start shipping the units to installers in the US by this summer.

In a highly anticipated event near Los Angeles, Mr Musk said the move could help change the "entire energy infrastructure of the world".

"Tesla Energy is a critical step in this mission to enable zero emission power generation," the company said in a statement.

The rechargeable lithium-ion battery unit would be built using the same batteries Tesla produces for its electric vehicles, analysts said.

The system is called Powerwall, and Tesla will sell the 7kWh unit for $3,000 (£1,954), while the 10kWh unit will retail for $3,500 (£2,275) to installers.

Energy comparison firm USwitch estimates that one kWh can power two days of work on a laptop, a full washing machine cycle or be used to boil a kettle 10 times.

Mr Musk said the company would partner with SolarCity to install the home batteries, but there would be more companies announced.

Mr Musk is SolarCity's chairman and largest shareholder.
Analysis: Richard Taylor, BBC News, San Francisco

Tesla's move into so-called "stationary storage" is a market with enormous growth potential: as the world slowly moves away from fossil fuels, it is seen as critical to a more widespread adoption of "clean" energy sources like solar and wind.

There is also a strong commercial rationale for Elon Musk to leverage Tesla's expertise in building highly-efficient car batteries and put them in a single unit in consumers' residences.

The business strategy is a bit like the battery itself: high impact, but a slow release which will really only reap significant benefits over time. But it comes with risks. Tesla may face a challenge getting the cost-saving message across to potential customers, especially with a significant $3,500 upfront cost.

The carmaker also faces competition from battery-storage technology rivals with deep pockets such as GE (General Electric) and South Korea's top chemical company, LG Chem. There is also a danger that this particular lithium ion battery could be superseded within a few years by other technology, like hydrogen fuel cells, which Tesla is not equipped to make.

Still, these are risks Tesla is clearly prepared to take on. Its cars have won rave reviews, but precious few sales outside its California heartland. With a $5bn gigafactory not due to open until 2017, and only a single Tesla vehicle available to buy today, diversification of its product line into an area like this will be key to keeping investors happy.

The sales of battery storage systems for homes and businesses could yield as much as $4.5bn in revenue for Tesla, according to Deutsche Bank.

The automaker reported fourth quarter earnings that missed market expectations in February, as it saw a loss of $107.6m on production and delivery issues.

Friends of the Earth's renewable energy campaigner Alasdair Cameron said having solar panels and a home battery in the future could become as common as central heating.

"Just as the internet changed the way we use information so renewable sources, like wind and solar, are changing the way we make and use energy - and electricity storage is an important part of that change," he said.

"Cheaper and more efficient energy storage means individuals and businesses could save renewable energy until they need it, hugely reducing the need for climate-changing fossil fuels."

Colin Brown, director of engineering at the Institution of Mechanical Engineers said Tesla's announcement is timely considering the push by governments to reduce emissions.

"Without storage you've always got to have huge capacity just in case one of the peaks come through at a particular time - a very hot day when you need a lot of cooling, and so a lot of demand. With storage, you don't have to have all of that massive production of energy," he said.