Respectfully, 30kWh is not much in this context. In 10 years every modern 2-car home will have 200kWh on the driveway just from the EVs; add a 100kWh whole home battery at a price point close to a 10kWh battery today and the calculus changes in most of the world.

The cost of materials going into modern batteries easily leaves room for another 10x reduction in price, IMO where this all is heading is obvious. Zero marginal cost will win every day of the week.

FWIW we run our cabin on 15kWh battery today year around, though we do run a small wood stove to supplant the heat pump on cold winter days.

▲

LogicFailsMe 3 hours ago | parent | next [-]

40 kWH of storage and 9 kW of solar panels is all I need personally to live a 1st world lifestyle in the bay area mostly off-grid except for water and internet.

▲

coryrc 3 hours ago | parent | prev [-]

I bet you didn't even see the tragic farce when writing your solution. Land development requiring ”2-car homes" is the driver of the problem! An apartment only has to heat one or two walls facing the outside instead of 4. That's 50-75% right off the top of your energy usage, with the mean closer to 75%.

▲

LogicFailsMe 3 hours ago | parent [-]

There's nothing farcical about wanting one's own space where there's space to have one's own space. I'm grateful to no longer be sharing walls with a domestic abuse couple on one side and a midnight banshee on the other wall when she got busy. Energy is cheap, people are exhausting.

▲

coryrc 2 hours ago | parent [-]

And that gets into another coordination problem we're unable to solve. It's a solved problem to build apartments where you can't hear your neighbors, but the builders don't have incentive to spend the money upfront to do so and we add regulations to make it more expensive for them to do so. So people go on thinking "apartments suck" and not the correct "we shouldn't let people build apartments which suck".

Also, living in SFH isn't avoiding all problems. I'd rather live in a properly-built apartment than my old house when my neighbor left her dogs outside to bark for the entire work day, every single day, and all the city would do is fine her a hundred bucks every few months. (or if you want to say "rural", that's 1 a small fraction of the population and 2 I like hospitals).

	▲	LogicFailsMe 2 hours ago \| parent [-]
		And the usual engineer mindset to consider the options to be 1 or 0, no? I just live far enough from the center of it all that I have a vacant quarter acre and thicker windows that happened when the last owner's mistakes caught up with me the current owner. For medical, I have UCSF, and for major medical, I have medical tourism, something I fully endorse from experience. And yes, not everyone can do that. And well, I can't touch my toes and they probably can. Life's funny that way.