Why the U.S. Electric Grid Isn't Ready for the Energy Transition

Right.

And California is banning gasoline-powered, internal-combustion engines by 2035.

We won't be ready.

At the New York Times, "To start with, there is no single U.S. electric grid":

America’s fragmented electric grid, which was largely built to accommodate coal and gas plants, is becoming a major obstacle to efforts to fight climate change. https://t.co/F35tJbxJMg

— The New York Times (@nytimes) June 12, 2023

The U.S. electric grid is often described as a vast, synchronized machine — a network of wires carrying electricity from power plants across the country into our homes.

But, in reality, there is no single U.S. grid. There are three — one in the West, one in the East and one in Texas — that only connect at a few points and share little power between them.

Those grids are further divided into a patchwork of operators with competing interests. That makes it hard to build the long-distance power lines needed to transport wind and solar nationwide.

America’s fragmented electric grid, which was largely built to accommodate coal and gas plants, is becoming a major obstacle to efforts to fight climate change. Tapping into the nation’s vast supplies of wind and solar energy would be one of the cheapest ways to cut the emissions that are dangerously heating the planet, studies have found. That would mean building thousands of wind turbines across the gusty Great Plains and acres of solar arrays across the South, creating clean, low-cost electricity to power homes, vehicles and factories.

But many spots with the best sun and wind are far from cities and the existing grid. To make the plan work, the nation would need thousands of miles of new high-voltage transmission lines — large power lines that would span multiple grid regions.

To understand the scale of what’s needed, compare today’s renewable energy and transmission system to one estimate of what it would take to reach the Biden administration’s goal of 100 percent clean electricity generation by 2035. Transmission capacity would need to more than double in just over a decade....

There are enormous challenges to building that much transmission, including convoluted permitting processes and potential opposition from local communities. But the problems start with planning — or rather, a lack of planning.

There is no single entity in charge of organizing the grid, the way the federal government oversaw the development of the Interstate Highway System in the 1950s and ‘60s. The electric system was cobbled together over a century by thousands of independent utilities building smaller-scale grids to carry power from large coal, nuclear or gas plants to nearby customers.

By contrast, the kinds of longer-distance transmission lines that would transport wind and solar from remote rural areas often require the approval of multiple regional authorities, who often disagree over whether the lines are needed or who should pay for them.

“It’s very different from how we do other types of national infrastructure,” said Michael Goggin, vice president at Grid Strategies, a consulting group. “Highways, gas, pipelines — all that is paid for and permitted at the federal level primarily.”

In recent decades, the country has hardly built any major high-voltage power lines that connect different grid regions. While utilities and grid operators now spend roughly $25 billion per year on transmission, much of that consists of local upgrades instead of long-distance lines that could import cheaper, cleaner power from farther away.

“Utilities plan for local needs and build lines without thinking of the bigger picture,” said Christy Walsh, an attorney at the Natural Resources Defense Council.

Study after study has found that broader grid upgrades would be hugely beneficial. A recent draft analysis by the Department of Energy found “a pressing need for additional electric transmission” — especially between different regions.

The climate stakes are high...