Electricity storage’s time has come
I especially like the idea that battery technology today is where PV was 10 years ago. At the beginning of a dramatic drop in prices.
Everyone knows that solar and wind power are variable energy sources; neither on its own produces electricity 24 hours a day, 7 days a week, 365 days a year. For that matter, no electricity source can do that indefinitely: nuclear reactors have to be shut down for weeks for refueling every 12-18 months and occasionally suffer unplanned shutdowns; coal plants break down and need repairs, so do gas-powered turbines.
Thus, backup power is needed whatever the main source of power may be. In solar and wind’s case, their variability is more pronounced. But their variability is predictable: for example, grid operators know that solar isn’t going to produce at night, when the sun is down. Of course, power demand is down most of the night too–not as big a problem as it might appear.
These days knowledgeable grid operators…
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