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Re:California's Last Nuclear Power Plant to Be Shut Down by pstrateman on Wednesday June 22, 2016 @02:34AM (#11951965)
The storage costs are the issue.

The grid cannot realistically be more than about 20-30% solar PV without matching storage.

Storage is expensive, like 20-30 cents/kWh expensive.

It's just not competitive with natural gas which is available for ~6 cents/kWh.

Re:California's Last Nuclear Power Plant to Be Shut Down by toomuchtodo on Wednesday June 22, 2016 @02:38AM (#11951978)
Storage is not 20-30 cents/kWh. Storage alone, provided by Solar City in Hawaii, is 14.5 cents/kWh as of this year [1]. These costs will only continue to decline [2].

The price of natural gas will increase again [3] (and currently, its closer to 7-10 cents/kWh, not 6); when that does, it only makes renewables more competitive. Renewables will never get more expensive than they are today; coal will be gone in the next 3-5 years, and natural gas not far behind.

[1] http://cleantechnica.com/2016/02/19/solarcity-deploy-tesla-e...

[2] http://cleantechnica.com/2015/03/26/ev-battery-costs-already...

[3] https://www.eia.gov/dnav/ng/hist/rngwhhdm.htm

Re:California's Last Nuclear Power Plant to Be Shut Down by pstrateman on Wednesday June 22, 2016 @03:48AM (#11952171)
That's certainly an improvement from 20-30 cents/kWh.

However for solar PV with storage to replace natural gas their combined cost is going to need to be less than 6 cents/kWh.

The combined cost of solar PV and storage is currently 20-50 cents/kWh.

Do you really see a 10x performance/cost improvement right around the corner?

Re:California's Last Nuclear Power Plant to Be Shut Down by toomuchtodo on Wednesday June 22, 2016 @12:59PM (#11955367)
> Do you really see a 10x performance/cost improvement right around the corner?

I see batteries under $100/kWh in <5 years.