An unlikely energy sector is emerging as a winner from the West’s megadrought: fossil fuels, whose heavy use has been blamed for creating the conditions causing the drought in the first place.
The drought has slashed the electricity-generating capacity of major hydroelectric dams, forcing buyers to spend millions of dollars to buy extra power from an expensive sellers’ market.
A 20-year megadrought in the West is threatening hydropower for millions of people, so the federal government is taking emergency action. It’s sending water from other reservoirs to Lake Powell to help keep the power turbines there spinning.
In 2018, the state of California updated its Renewables Portfolio Standard to call for obtaining 60% of its power from renewable energy sources by 2030. At the same time, the state also mandated that its electricity system be powered solely by carbon-free, renewable energy sources by 2045. Meeting these ambitious targets will require no shortage of technological developments, particularly batteries or other means of storing electricity generated by intermittent, renewable energy sources, especially solar and wind power.
As part of its recently enacted budget for 2021-22, California included funding to help foster the development of one such storage method, known as pumped-storage hydropower. In particular, the budget provided $18 million to the city of San Diego and the San Diego County Water Authority for use in advancing their planned joint project known as the San Vicente Energy Storage Facility.
Intensifying drought conditions in California and historically low water levels at the Oroville Dam on Aug. 5 forced the state’s Department of Water Resources to shut down the 644-MW Edward Hyatt Power Plant—the fourth-largest energy producer of all California’s hydroelectric facilities.
While the current drought is affecting 95% of the West, it is bearing down severely in California and in the Colorado River Basin. Multiple reservoirs monitored by the U.S. Bureau of Reclamation are “substantially” affected. The federal agency reported on Aug. 8 that at least six of its 44 major reclamation reservoirs—including Hoover Dam and Glen Canyon Dam—have now fallen to their lowest storage values in the last 30 years.
A California power plant likely will shut down for the first time ever because of low water during a prolonged drought, squeezing the state’s very tight electricity supplies, state officials said yesterday.
The Edward Hyatt power plant, an underground facility next to Oroville Dam in Butte County, is expected to close in August or September, said John Yarbrough, California Department of Water Resources assistant deputy director of the State Water Project.
The head of California’s electric grid said Wednesday he is “guardedly optimistic” that the state will avoid rotating blackouts this summer, but warned that voluntary cooperation during Flex Alerts will be necessary.
Elliot Mainzer, president and CEO of the California Independent System Operator, said utilities throughout the state have built up power reserves and invested in new technology like battery storage to prevent blackouts like the ones in 2020.
But recent record heat in California and the Pacific Northwest combined with a drought that will reduce hydropower give him cause for concern.
Water in a key California reservoir will fall so low this summer that its hydroelectric power plant will be forced to shut down for the first time, officials said Thursday, straining the state’s already-taxed electric grid. An unrelenting drought and record heat, both worsened by the changing climate, have pushed the water supply at Northern California’s Lake Oroville to deplete rapidly.
The catastrophic drought that’s gripping the U.S. West is claiming a new victim: the hydropower dams that much of the region depends on for electricity supplies. Low water levels in key reservoirs mean that hydropower supplies are declining. One of the hardest hit areas is California, where output has tumbled to the lowest in more than five years. Nationally, the U.S. Energy Information Administration predicts electricity generation from conventional hydro sources will drop about 11% this year from 2020.
Conservationists in California and across the West are deeply skeptical of hydropower, and it’s not hard to see why. There’s a long history of government agencies damming spectacular canyons, choking off rivers, obliterating fish populations and cutting off access to Indigenous peoples. It’s a history detailed in books such as “Cadillac Desert,” and experienced by anyone who has spent time fishing, kayaking or swimming in the region’s reshaped waterways, or hiking alongside them.
The man-made lakes that store water supplying millions of people in the U.S. West and Mexico are projected to shrink to historic lows in the coming months, dropping to levels that could trigger the federal government’s first-ever official shortage declaration and prompt cuts in Arizona and Nevada.
The U.S. Bureau of Reclamation released 24-month projections this week forecasting that less Colorado River water will cascade down from the Rocky Mountains through Lake Powell and Lake Mead and into the arid deserts of the U.S. Southwest and the Gulf of California. Water levels in the two lakes are expected to plummet low enough for the agency to declare an official shortage for the first time, threatening the supply of Colorado River water that growing cities and farms rely on.
