Something around 2500W of solar can provide enough energy to drive an EV 12,000 miles a year.
When it comes to zoning. The state should require offices to install chargers for employees cars when the solar share of electricity generation is highest.
An old XKCD what if: https://what-if.xkcd.com/128/
> What in my pocket actually contains more energy, my Zippo or my smartphone? What would be the best way of getting the energy from one to the other? And since I am already feeling like Bilbo in this one, is there anything else in my pocket that would have unexpected amounts of stored energy?
Which in part had:
> A container of butane the size of a phone battery could, in principle, power the phone about 13 times longer than the battery itself could. The obvious question, then, is "why doesn't my phone run on propane?"
...
Also http://www.jefflewis.net/blog/2012/01/how_much_gas_to_charge...
And while that's based on a study from Exon (no longer accessible)... but the math part is math no matter who does the math.
> So, the claim that there's enough energy in a gallon of gas to charge an iPhone every day for 20 years seems pretty reasonable (in reality, when you look at the efficiencies, you won't be able to put all that energy into charging the phone).
> An iPhone may not be huge, but 20 years is a pretty long time. It really just goes to show how much energy gasoline contains, and why it's so useful for powering vehicles.
https://ourworldindata.org/battery-price-decline
The price of battery storage is dropping exponentially, just as the price of solar power has. Eventually, the price becomes pretty trivial.
> The price of battery storage is dropping exponentially
We're at the flat end of things. Even if this trend continues, there won't be another 99% reduction coming.
> Eventually, the price becomes pretty trivial.
Only if you can scale manufacturing and materials the same way. Hopefully not with Lithium, because that's just not abundant enough.
1.78 million USD at current exchange rate. Before sales tax, but if you're buying at this scale, you claim that tax back anyway:
https://www.ladeengel.de/Batteriespeicher/Grossspeicher-ab-5...
> Only if you can scale manufacturing and materials the same way. Hopefully not with Lithium, because that's just not abundant enough.
1. Sodium is already cost-competitive with lithium, for batteries.
2. There's loads of lithium all over the place, the hard part of using it is that it's spread out everywhere rather than particularly concentrated. Like, we're talking 150 million tons of "reserves", 250 billion tons dissolved in the seawater, and plausibly 5 quadrillion tons in the bulk of the planet's rock.