Rooftop solar panels no help in a blackout

Bloomberg:
Californians Learning That Solar Panels Don't Work in Blackouts

Californians have embraced rooftop solar panels more than anyone in the U.S., but many are learning the hard way the systems won’t keep the lights on during blackouts.

That’s because most panels are designed to supply power to the grid -- not directly to houses. During the heat of the day, solar systems can crank out more juice than a home can handle. Conversely, they don’t produce power at all at night. So systems are tied into the grid, and the vast majority aren’t working this week as PG&E Corp. cuts power to much of Northern California to prevent wildfires.
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One of the problems with both solar and wind alternative energy is the inability to scale to meet demand.  Because of this the rooftop solar is designed to send the excess power to the grid.  It then becomes a problem for the grid if all the solar capacity exceeds the demands on the gird.  In those cases, California then actually pays other states to take their excess capacity.

This is just another example of the inefficiency and unreliability of these alternative energy sources.

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