ENERGY SECURITYCalifornia Just Debunked a Big Myth About Renewable Energy
One of the biggest myths about renewable energy is that it isn’t reliable. clifornia went a record 98 of 116 days providing up to 10 hours of electricity with renewables alone.
One of the biggest myths about renewable energy is that it isn’t reliable. Sure, the sun sets every night and winds calm down, putting solar panels and turbines to sleep. But when those renewables are humming, they’re providing the grid with electricity and charging banks of batteries, which then supply power at night.
A new study in the journal Renewable Energy that looked at California’s deployment of renewable power highlights just how reliable the future of energy might be. It found that last year, from late winter to early summer, renewables fulfilled 100 percent of the state’s electricity demand for up to 10 hours on 98 of 116 days, a record for California. Not only were there no blackouts during that time, thanks in part to backup battery power, but at their peak the renewables provided up to 162 percent of the grid’s needs — adding extra electricity California could export to neighboring states or use to fill batteries.
“This study really finds that we can keep the grid stable with more and more renewables,” said Mark Z. Jacobson, a civil and environmental engineer at Stanford University and lead author of the new paper. “Every major renewable — geothermal, hydro, wind, solar in particular, even offshore wind — is lower cost than fossil fuels” on average, globally.
Yet Californians pay the second highest rates for electricity in the country. That’s not because of renewables, but in part because utilities’ electrical equipment has set off wildfires — like the Camp Fire started by Pacific Gas and Electric’s power lines, which devastated the town of Paradise and killed 85 people — and now they’re passing the costs that come from lawsuits and burying transmission lines to their customers. While investigators don’t know for sure what sparked all of the wildfires that have ravaged Los Angeles this month, they’ll be scrutinizing electrical equipment in the area. Power lines are especially prone to failing in high winds, like the 100-mile-per-hour gusts that turned these Southern California fires into monsters.
