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Some neighborhood grids just aren’t built for huge spikes in power demand. The rise of the electric car has utilities scrambling to adjust.
A battery made of cheap materials could store power when it’s windy for use when it’s not.
Utilities are installing devices that make ice at night to replace air-conditioning during times of peak power demand.
The devices could help stabilize the grid, and make charging electric cars cheaper.
A study says 35 percent of electricity could come from solar and wind–without expensive new backup power plants.
Battery breakthroughs could lower costs and improve performance for electric vehicles and renewable energy storage–but commercializing these new technologies will be challenging.