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mahonj
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I have to agree with Dursun, cables might be a better solution. In principal, you either move it or store it, but there are considerable loses with storing it that you are better off moving it. Or maybe the distances are so great that it isn't worth moving it. This is the great problem of renewables as they get large relative to the grid, what to do with the energy. Could you build enormous hot water stores ? Paraffin wax phase energy stores - enough to store a winter's worth ? I am sure they need plenty of heating over there.
We run our whole house on 4400 KwH (6 people) but we have gas heating and water heating and don't need air con. The car figure sounds a little low, but only by ~20% (10K miles at 3 miles / KwH) and is from real data, so I suppose we should accept it, but I would imagine this is a self selecting group and the average usage would be 20-50% higher. What this says to me is that electric cars are viable in the developed world. If it is possible to arrange to charge when there is excess capacity on the grid*, it could be done at quite low costs. * which just means leaving them plugged into "smart chargers" at night and work times.
Looking over from Ireland, those are incredibly low lease rates in LA. What an economy!
Looks good to me (excluding front styling). As long as it is affordable. I would suggest they make a second version with 40 - 50 km electric range to have a lower entry price point and let people chose which they want.
I have always maintained that this is a good idea, especially for current generation electric cars (Leafs) with limited range. If you want a long drive, you arrange to swap for an ICE for the weekend. The opposite may now be becoming true, if you have a diesel and want to go into the city centre, you might want to swap for an electric. As long as you have reputations and insurance soured out, it could work well. If you look at the number of cars parked at any time, you can see the potential for this.
2 lidar companies raising money in one day - is something up?
Seems reasonable. What is typical acceleration for a saloon / SUV in the US these days? Do you really need 0-60 in 7 seconds ?
@Harvey, an increase in gas tax sounds like an obvious idea, but I cannot see Trump or the republicans going for it. Gas is about 2x more expensive ($1.61 vs $0.75) but people get by (less powerful cars). More storms would not be convincing for those people.
It all looks good to me. Test quickly and start mass producing as soon as possible. And keep them affordable.
OK, so existing petrol scooters generate a lot of pollutants and 75 miles is enough for London ... as long as you don't end up in a pursuit.
75 miles and 4Kw of power does not sound like much for a police bike - I assume they charge a battery to get more power for acceleration. "Metropolitan Police Service decision made in late 2015 to stop mandating diesel fuel for its fleet" - all well and good, but the bikes would have been petrol in the first place. Getting rid of diesel from urban areas is a good thing, but there is no need to throw the baby out with the bathwater.
@Calgary. Good point. You could also make electric ones with the batteries on the roof - to keep them dry.
That sounds like a lot of butanol. Where will they get it from ? There is plenty of ethanol being produced, but little butanol, as far as I can see.
Excellent: with this, you could electrify "everything", especially the back axle of a FWD car. Ideally, you could use this to hybridise loads of vehicles so their engines did not have to be used in built up areas. I suppose it is all down to the cost, and the complexity of integration and where you put the battery and how large it needs to be. I wonder could you use a diesel engine as a generator in such a way that it produces minimal pollution to avoid the need for a large battery (in a serial hybrid configuration).
I don't quite get this: The existing 622 battery has a density of 178 Ah/Kg The new 811 battery has a density of 185 Ah/Kg, about 4% better. Then they say ..."extend EV range by another 100 km compared to current cells." Or are they referring to the 260 HE-NCM batteries which are about 46% better than the 622's?
Why stationary first, then EVs a year later ? I wonder is it weight or vibration resistance, or just being careful ?
The amount of power an e-bike should have is an interesting problem. Too much and people want to treat it as a motorbike and tax and license it and the driver. Too little and it is a bit crap. On the other hand, most non-sporting cyclists use about 100 W or less on average, so you don't actually need that much power. Note that speed is related to the cube root of the power of a vehicle, so if you halve the power, you only drop the speed by 1.26. Thus, if Herman can get 45 kph from 750 watts, Thomas should be able to get 31 kph from 250 watts. Even more if he pumped his tires to 90 psi and wore a lycra suit (or crouched down like a racer). It should be noted than an e-bike is an almost perfect single person device for distances of up to say 10 miles or in cities (even hot cities). [ A p-bike will do for cool places. ]
It looks to me like it is all about cleaning up diesel vehicles, including trains and buses. Can trains be retrofitted with pollution control equipment ? It might be worth it, else you will just have to scrap them. Over here in Europe, we have millions of diesel cars which are another problem. Best just to replace them with gasoline or better still, hybrids or electrics. Much better to replace 2 diesels with 2 gasoline cars than 1 diesel with an electric.
Any mention of the power of this motor ? 10A, 480W ? We only have half the story here.
Bus drivers do a bit more than just drive the bus. They also keep order - mostly passively, but occasionally actively. I could see larger (40+ seat) buses keeping the driver, while smaller 4-20 seaters going driverless. Also, you could vary the size of buses on a route: 80 seats at rush hours, then 20 seats early morning, late night. I could see people having less cars per house, but keeping one for most of the trips. The days of the adult children having their own cars might be drawing to a close, while a couple with kids would probably want 1 car for taxi duties.
7x better than algae sounds very good. As always, it takes a lot to get a promising idea from the lab to the market, but, if it worked, it would change everything. (You could have loads of sugar and hence varied liquid fuels which would be useful where you cannot use electrification). [ Trucking, ships, planes ]
It is all down to cost and space available. If there is lots of space, single junction cells may be the cheapest way. If space is limited, dual or triple junction might be the best way. For instance on top of cars or boats or electric planes.
OK, Add them up and divide by 10 then. A4-18 TFSI cough, stubs out fag end.
You could blend the methanol into petrol (up to 3% in the Eu). + it looks like it needs quite a bit of land. or use it in a fuel cell?
@Thomas, it should be cheap if factory fitted, but don't expect too much from it. @Harvey, the 31% might be very expensive as it is a dual junction device, but you never know.