Thursday, July 07, 2011

Solar issues part 2

Lacklustre results from the Colorado Integrated Solar Project � BraveNewClimate

A few posts back, I noted how PV power investment seems less risky than solar thermal, but I also noted that even with cool looking stirling engine style solar power, the output going up and down rapidly on an intermittently cloudy day was something I was unsure about.

It would seem from the above post that this is indeed a serious issue for large scale PV power (and, presumably, stirling engine solar power.)

Of course, you could always orbit them in space and get constant light that way. Now if only NASA still had rockets...

Nothing is dead simply in alternative energy.

(By the way, is this a convincing argument for highly distributed PV on houses and commercial sites as the simplest way to go? You overcome the problem if the solar panels are spread far and wide, then the supplementary power you need from the grid just getting switched between the areas under cloud for 5 minutes. But if everyone has some solar power, presumably your grid has to supply not all that much supplementary power.

Has anyone in the world ever proposed that it be a law that all new houses have to have a certain amount of PV installed?)

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