New forms of electricity storage may change the politics of climate change
At the annual National Republican Congressional Committee dinner in Washington this month, President Donald Trump made news with some curious remarks about wind power. What went viral was his untrue suggestion that the noise from wind turbines causes cancer, but his warning that home values instantly plunge 75 percent when a windmill is built nearby was equally false.
Electricity storage will reshape the grid in many ways, but the most important is its potential to accelerate the already explosive growth of renewable energy—and that will have political implications. Of the 21 states with the highest greenhouse gas emissions per capita,, and the lone exception, New Mexico, just passed a law committing to 100 percent clean power by 2045. By contrast, Hillary Clinton won the eight states with the lowest emissions per capita.
“Every time we do a new forecast, we have to revise it up for deployment and down for cost,” says Ravi Manghani, head of energy storage research at Wood MacKenzie. “We’ve been proven wrong again and again.” Shah says the spectacular growth in storage built by utilities alongside solar plants might eventually be dwarfed by homes and businesses installing “behind-the-meter” battery units to store solar power from their rooftops; last year, 15,000 individual battery storage units like the Tesla PowerWall were installed in the U.S., still a tiny slice of the market but a fivefold increase over the previous year.
The Trump administration has used this theoretical reliability gap to argue that retiring dirty and uneconomical coal plants could threaten the stability of the grid and has pushed, so far unsuccessfully, for some kind of bailout to keep them online.
Innovation could produce breakthroughs that would make intermittent wind and solar plants function more like green versions of 24-hour fossil-fuel plants. The holy grail of long-term storage is currently available only with older niche technologies like “pumped hydro,” which works only around hydroelectric dams that happen to have upper and lower reservoirs. But short-term storage is already useful, which is why so much of it is being built in red states like Florida.
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