^{Video production: Tim Walter Associates Limited}

Is it a Nemesis?

It finally happened. Last Monday on a windswept old airfield in Norfolk, we got the wind car out of the workshop and took it for its first spin on tarmac.

Not entirely without a little drama mind you – the car barely being able to climb the transporter loading ramp at full throttle was a challenging start to the day… but we quickly enough adjusted the bugs out of that and it flew, really flew.

The acceleration is astonishing. I had a run up and down with John Miles (ex Lotus F1 man) at the wheel – OMG! If you’ve ever been on the Oblivion at Alton Towers, that feeling you get in the pit of your stomach as you go over the edge and rush groundward – that was exactly the feeling, and it was relentless.

There’s no power build up, no power curve – it’s on full (especially when John’s driving), and it stays on – until the throttle comes off (and then the brakes burn… ) It’s incredible.

We clocked over 100mph, accidentally, (I mean it wasn’t a speed trial) just running up and down a few hundred metre stretch. And we didn’t spin a wheel, we burnt nothing – not even rubber, more on that later.

The big surprise of the day was the noise – we reckon part Stuka dive bomber and part supercharger, don’t know how well it will come out on film, but this car definitely is not quiet. And I really like the noise it makes.

That takes care of one of Mr Clarkson’s favourite EV ‘worries’ (bless).

Our attempt to test it more fully at Snetterton later the same day was (madly) rained off, as you’ll see in the video. But we’ll be back there in a week or so. By which time we’ll have upgraded the standard brakes (which we cooked) and made some small suspension tweaks. I’m expecting it to be incredibly quick.

The big question will really be how long we can drive it for – that we can’t be sure of.

All the time and care our guys have put into the design and build of this car really is starting to show – I mean to perform ’straight out of the box’ like this is a real feat. I’m impressed.

It looks and sounds awesome and it goes like hell.

Looking at it and having driven it I really am thinking it suits the name Nemesis.

Very much so.

Cheers.

ETA: This video (and all the others) is also available on Youtube for your embedding pleasure etc.

^{Video production: Tim Walter Associates Limited}

This months highlights are;

Meeting the Sun’s environment correspondent – yes seriously. They’ve not had one very long but they do have one and he is serious about it – and:

That amazing machine at Leeds University – the one that looks like it belongs on a Sci Fi film, in fact I’m sure I’ve seen versions of it, recreating humans from DNA samples… In our case we used to make a ‘gear lever assembly’.

As you’ll see here we’re getting close to the end game now, in fact I’m ready to predict that episode 10 of 6 will see me driving the Wind Car for the first time… !

The thing that’s been holding us up this past month or so is the Battery Management System (BMS), in case you wondered. The solution we were chasing kind of fell apart a few weeks ago and we had to hunt around for some new technology. Bit scary this late in the day…

But we’re very much back on track now having found exactly what we need from Linear Technology. These guys went above and beyond by expressing us a bunch of pre production chips and a board, that’s been a massive help. Thank you.

Returning to the question of a name, not sure if this one came up before, but in an e-mail last week I made a quick ref to the e bird (easier to type than wind car), and I kind of liked it. Any thoughts on that welcome.

Other than that current front runners are still Zero, Hurukan and Zephyr.

I’m off to Norfolk the week after next to shoot episode 10 and, hopefully, actually get to drive it – that’s a pretty exciting prospect after all this time and effort.

Hope you enjoy the vid.

Cheers.

PS – This just in – been challenged to a drag race with an RAF Tornado – can’t turn that down, racing for pink slips I hope, winner keeps all… More on this later.

^{Video production: Tim Walter Associates Limited}

The first thing I should say here is that this isn’t the last episode of our little video series – it can’t be – we just haven’t finished yet. So expect Episodes 7 and probably 8 of 6 before long…

Second thing to say is I’ve got a new idea for a name. I’m quite taken with it.

The Mojo.

Keen to hear views and feelings on that. I like Zero, but as many people here have pointed out, it’s appearing on cars all over the place, in one form or another.

And Mojo (to me) is less technical, less hard maybe (less macho Damon?… ) and more fun.

So the Ecotricity Mojo – tell me what you all think.

Third thing to say is I went to Norfolk the other week to see the car and although the drives train bits weren’t installed as hoped, it was an exciting visit. It seems that the motors arrived quite a bit bigger than the manufacturers spec and we’re having to adjust the transmission to fit them in (that’s a euphemism BTW… ). That’s been the main hold up anyhow.

Still we’re making good progress, nailing a bunch of issues and having fun in the process.

What more could you ask for.

That’s it. Cheers.

^{Video production: Tim Walter Associates Limited}

Thanks to everybody for that massive response to the last video posting on the wind car. And some more great names rolling in. I’m going to reply globally here if that’s OK.

Couple of people raised valid issues/questions – why aren’t we making a family car for example, or transforming a Prius (nice idea) – and haven’t Tesla already proven the EV sportscar thing?

The answer to all these lies in two parts, timing and my nature.

With regards timing, when this project was first conceived I’d never heard of Tesla and couldn’t find an electric sportscar anywhere, other than concepts (and I did look). To get one I was going to have to build one. Things moved on from there.

As for my nature, I like sportscars – they’re fun. It seemed like the ideal place to start, especially because I think it’s important that being green shouldn’t all be about sacrifice – to engage a bigger audience we need to show that cutting carbon and living more sustainably can be done and can still be a lot of fun. Sportscars turn heads and grab media attention – so I chose that route.

I don’t think Tesla have really proven this concept yet BTW, Top Gear may have been harsh, even manipulative with the imagery, but the serious flaws were real. And of course Tesla are not the only people pursuing this dream right now anyhow. The Lightning looks really good.

The more the merrier I say. We can’t be sure of the success or survival of any car company in these times – especially those trying to bring EV’s to market.

I accept that a family car would have more practical value, I’m not sure if it would have more impact though and that’s what we’re trying to achieve first and foremost. Plus we know this car will cost a lot and high cost is easier to justify if you have a more exotic car – think Lamborghini for example.

And maybe this will be the car that changes hearts and minds at Top Gear. That’s a prize in itself. Love them or loathe them (or just be amused by them), these guys are opinion formers.

On the naming front I’m grateful for all the new names and for the pointers to other cars called Zero. The Italian one looks quite cool, thanks Greenmotor.

I’m still torn.

Anyway, hope you enjoy episode 5 of our video series, things are moving a pace now.

I’m off to Norfolk this week to hook up with the team and shoot the next episode.

Expecting to see the batteries, motors and transmission all installed, have to say I’m more than a little excited by that.

Cheers.

^{Video production: Tim Walter Associates Limited}

Good vid this one, all looks very industrial over there in Norfolk – and stuff is starting to come together.

I’m thinking it’s about time to come up with a name, and I’ve come up with a short list.

First thanks to everybody that sent suggestions, I enjoyed and appreciated them all, very much.

The short list I’ve come up with, and the reasons for each, are as follows:

Zero – Short version of the Zero C suggestion, has a certain neatness about it and many interpretations.  WW2 Japanese fighter of course.  Also a typical car has a badge announcing it’s cubic capacity, valve and/or turbo numbers  – Zero all of this in our case.  And Zero combustion/carbon.  And it has a nice ring to it.  The Zero.

Nemesis – Darker altogether and spawned from my traveller days when 2000 AD (the comic) was a cult read – anyone familiar with that will know the nemesis character.  Pretty awesome.  And Nemesis to the ICE car industry is exactly what EVs and WEVs are going to be, IMO.  Like this one for the dark side.  The Nemesis.

Storm – Weather inspired (not X men… ), toyed with Tornado and Hurricane, both of which I like, but feel that Storm is more understated but still evocative.  This is after all a weather driven car.  The Storm.

I’d love to hear what you all think.  Time to name the Wind Powered Car.

Cheers.

^{Video production: Tim Walter Associates Limited}

You can see the body really starting to take shape here, and hear Peter talk about ‘toughening up’ of the look, from his original.

We’ve ‘placed’ all the parts within the car now and began machining/producing some of the bigger components, like the transmission.

And the batteries have arrived. Crazy thing about that was, to travel by ship they needed to be in their own 40 foot container, for safety reasons – but it was OK to stick them in the hold of a Jumbo jet, as they are… Not sure how that works!

Hope you enjoy the vid.

Cheers.

But it occurred to me – there’s an assumption frequently made that riding a bike is for free.  And it’s not.  You have to power the bike, it’s human power but that’s not free – we need food to do work.

The rates at which we burn calories and therefore food are pretty well established for various activities – resting, walking, running for example – as are the carbon impacts of food and therefore of the calories we use.

Typical daily calorie requirements are also well established.   And if you up your activity level you up your need to eat – it’s that simple.

Easy enough then to take a closer look at just how many more calories it takes to ride a bike, and what additional carbon impact comes from that – compared to the calorie intake required to drive a wind powered car instead.

It might not be surprising to find that driving a wind powered car is actually better in terms of CO₂ impact than riding a bike – after all wind power is zero carbon (the embedded energy in a windmill is repaid in about six months of operation – after that it’s all carbon free) – the assumption though has been that biking is zero carbon too, but it ain’t.

Biking requires 40 additional calories per mile – or 400 additional calories for a ten mile trip.

Using some typical food carbon footprints and assuming ten miles a day for a year you get a total annual impact of 333kg CO₂ – from riding the bike.

This is over and above the normal food impact – which, based on a mixed diet of 2,400 calories a day (for example) would be responsible for 2 tonnes of CO₂ a year – veggies and vegans will do better than that of course.

Driving a wind powered car on the other hand requires 100 calories an hour (to power the driver), which is roughly 4 calories per mile (assuming average 30 mph) this produces 76g of CO₂ for a ten mile stint and a total of 28kg of CO₂ for that 10 miles a day for a year.

The difference is 0.3 tonnes CO₂ per year.  The wind car is one third of a tonne of CO₂ better than the bike…!

Like I say not surprising that wind cars win if you accept that wind power is zero carbon and biking requires more food than not biking.

But the big surprise in all of this, and perhaps the bit that makes it worth sharing – is that an electric car powered by the grid as it is, actually emits only ever so slightly more carbon a year than biking the equivalent distance.

A grid powered electric car travelling 5000 miles per MWh of electricity will produce 94g CO₂ per mile (including the drivers contribution), that’s 342kg per year of CO₂ for the 10 mile a day trip.   Only 9kg of CO₂ per year more than cycling.  And what’s 9kg out of one third of a tonne?

This is counter intuitive I think.

Biking isn’t so obviously squeaky green as it’s assumed to be – it has a carbon footprint virtually equal to grid powered electric cars – that’s a shock to me.  The reason for that is probably that the human body is not the most efficient user of fuel, whereas electric motors hit the high 90 percents.  And even the grid manages around 50% fuel efficiency.

No embedded carbon in the car or bike (or food chain) has been taken into account here of course – just straight use of each.

It might be interesting to look at embedded levels of CO₂ in cars and bikes and calculate how many years it would take for a wind powered car to……

Any volunteers?

Cheers.

PS – A petrol car doing the same 10 miles a day would emit over 1.2Tonnes of CO₂ in a year – about four times that of the grid EV or Bike – and 45 times that of the Wind EV.

The ranges made possible by new batteries seem very practical, when looked at against current car use patterns refuelling appears to be possible, even desirable, without the need for garages. And the National Grid appears readily able to accommodate the switch from oil to electricity for our entire car fleet.

So far so good.

Justin Noe raised a good point the other week, probably the next big practical question – is there enough Lithium in the world for us all to have EVs?

Justin quotes an article by a Michael C who says there isn’t enough, he doesn’t offer any numbers to support that view though – so we took a look, this is what we found…

Lithium is the 33rd most abundant element in the Earth’s crust – it makes up about 0.0007% which doesn’t sound a lot when compared to Iron’s 5% and magnesium’s 2%, but it may still be enough. How much is 0.0007% in metric tones?

According to Keith Evans, a geologist who’s been working on and writing about lithium reserves for decades, there are 28.4 Million Tonnes of Lithium metal in the ground. Let’s assume he knows his stuff.

That’s (apparently) equivalent to roughly 150 Million Tonnes of Lithium Carbonate – the stuff that goes into ‘Lithium batteries’.

According to William Tahil, the guy who seems to have kicked the lithium shortage debate, a typical Hybrid EV will need 16kg of Lithium Carbonate in it’s batteries. Let’s assume that a pure EV needs four times as much.

There are 900 Million cars in the world and so we’d need 58 million tonnes of lithium carbonate to power them all as pure EV’s with Lithium batteries.

That’s a little over one third of global reserves. Clearly enough to go round with some left over.

The world currently produces and consumes 16,000 Tonnes of Lithium metal a year, or 84,000 Tonnes of Lithium Carbonate (equivalent). And it produces 50 million new cars a year – this needs adding in to the equation.

Powering 900 million cars with Lithium Ion batteries, allowing for the additional 50 million cars a year and maintaining the current levels of demand for lithium in ceramics, drugs, aluminium smelting etc – would leave enough Lithium in the world to last another 28 years.

OK 28 years is not very long, but this assumes that Lithium reserves don’t increase as deposits become more economic as the price goes up – as with oil.

But the bigger factor is that Lithium is recyclable, unlike oil. Currently the USA recycles 98% of its car batteries whilst we in the UK recycle 90%.

If we assume that only 10% of those 50 million new cars need virgin lithium due to recycling old batteries then suddenly our reserves are going to last for over 200 years.

I don’t suppose that Lithium is the only game in town, to power EVs. The article Justin pointed out actually argued that super capacitors were ‘better’. They may or may not be one day, and EV’s will no doubt come with a range of technologies powering them – but there’s one thing we can be clear on;

If we relied 100% on Lithium, to ‘repower’ the world’s car fleet – we should have enough Lithium to do that and still ‘last’ for a couple of centuries.

And that’s a very (very) long way from the conclusion that there’s not enough in the world.