walkitout (walkitout) wrote,
walkitout
walkitout

When MIGHT SolarCity sell us a stationary battery and what might it look like and cost

Back in March, SolarCity suspended their pilot program in California, because the delays and fees involved in getting systems okayed by the utility were intolerable. This is interesting, because the state has mandated that the utilities implement a bunch of energy storage. You could go full-on conspiracy theory, but I don't think that would be wise.

http://www.bloomberg.com/news/2014-03-18/solarcity-freezes-energy-storage-program-as-grid-connections-lag.html

So what is actually going on? Probably a bunch of process, some cruft that just happens, some regulatory that is too heavy weight to apply to residential customers, some wtf. Bunch of fees set at the state level associated with the regulatory process. Etc.

Things appear to have restarted, but are not moving fast. Also, this isn't much of a system -- it isn't running HVAC, which would be a mandatory minimum out here (at least run the blower on the furnace!). The price is a little high, too: $1500 down, $15/a month for 10 years. Tesla battery, small box on the wall. I don't think it lets you do load shifting (pack it full of cheap energy during trough hours and then sell it back at the peak, or use it during a peak yourself).

http://www.mercurynews.com/business/ci_25900627/energy-storage-hot-new-thing-silicon-valley

19 customers hooked up in California, as of this article in June. There are pictures in the article.

Here's a nuanced discussion of utility-scale solar vs. distributed solar (sort of eye-popping savings doing bigger projects, actually), with sidelights on how tiered rate systems work and the interaction with net metering.

Anyone who calculates payback on a solar system based on their existing rate and net metering environment is probably make some kind of error, altho only the future will tell us what that error was.
Tags: our future economy today
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