By Umair Irfan
Vox, Jan. 30, 2022
Clean energy is rapidly rising on the Texas power grid, but regulators in the Lone Star State are now considering a plan that could give fossil fuels a boost.
The zero greenhouse gas emissions trio — wind, solar, and nuclear energy — provided more than 40 percent of electricity in the state in 2022. It was a year when several Texas cities experienced their hottest summers on record, driving electricity demand to its highest levels ever as fans and air conditioners switched on. Winter proved stressful too, with freezing temperatures last month pushing winter electricity peaks to record-high levels, narrowly avoiding outages.
Texas wasn’t alone. Over the past year, states like California have faced their own brushes with blackouts as searing temperatures drove up electricity consumption while the ongoing drought in the Western US throttled power supplies. Throughout the country, renewable energy is growing, but so are threats to the power grid. Utility regulators are trying to come up with ways to cope, and Texas — the largest energy producer in the US — could provide critical lessons.
However, Texas has some unique factors at play.
Texas leads the US in oil and natural gas production, but it’s also number one in wind power. Solar production in the state has almost tripled in the past three years. Part of the reason is that Texas is particularly suited to renewable energy on its grid. Wind turbines and solar panels in Texas have a high degree of “complementarity,” so shortfalls in one source are often matched by increases in another, smoothing out power production and reducing the need for other generators to step in. That has eased the integration of intermittent energy sources on the grid.
Coal, meanwhile, has lost more than half of its share in Texas since 2006. For a long time and across much of the country, the story was that cheap natural gas from hydraulic fracturing was eating coal’s lunch on the power grid. Coal was also facing tougher environmental regulations like stricter limits on mercury, requiring coal power plants to upgrade their equipment, and raising electricity production costs.
“The combination of the environmental regulations that are tightening and the cheapness [of competitors] mean that coal has trouble competing in the market,” said Michael Webber, a professor of energy resources at the University of Texas at Austin.
But in Texas, natural gas’s share of the electricity mix has been holding around 40 percent for more than a decade. On the other hand, renewable energy has surged as coal withered. Wind alone started beating out coal in 2019 and is now the second-largest source of electricity behind natural gas in the state.
Read the full article on Vox.