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ENB Pub Note: This is an outstanding Energy Bad Boys Substack article. Isaac Orr outlines the implications of the EPA regulations on grid reliability. Please subscribe to their substack here:
Also my interview with the Energy Bad Boys here:
On June 5th, I had the privilege of delivering the keynote address at the Dairyland Power Cooperative Annual Meeting, where I discussed our research on the impact of Environmental Protection Agency (EPA) regulations and the future of grid reliability.
I was especially excited to land this gig because Dairyland used to operate a small, 50-megawatt (MW) nuclear power plant, the La Crosse Boiling Water Reactor, on the Mississippi River in southwestern Wisconsin.
You can watch the presentation by clicking here or watching the video file below.
The best part about this nuclear plant, in my opinion, is that it was built by Allis-Chalmers, a company far better known for making orange farm tractors than nuclear reactors. For this reason, the plant was apparently referred to as “The Tractor Reactor.” These are the same kind of tractors my Grandpa Phil had on his farm in Central Wisconsin.
This isn’t one of Phil’s tractors, but it looks like one of them.
As Mitch and I have detailed in previous articles, EPA’s regulations present a clear and present danger to grid reliability in the United States. These regulations also pose a particular challenge for resource planners in the nation’s 856 electric co-ops because co-ops depended upon coal-fired power plants for 32 percent of their electricity in 2022, and these plants are now squarely in EPA’s crosshairs.
Graph from the National Rural Electric Co-op Association
These regulations come at a time when the North American Electric Reliability Corporation (NERC) has already identified the Midcontinent Independent System Operator (MISO) as the region most at risk of rolling blackouts from now until 2028. MISO is at particular risk largely due to coal-plant retirements.
The problem was already going to get worse in the coming years, even before considering the impact of EPA’s power plant rules. MISO estimates there will be more installed capacity on the MISO grid in the coming years, but the amount of reliable capacity will shrink over time. By the Planning year 2028-2029, the gulf between electricity demand and reliable supply could reach 9,500 MW.
This is why NERC identified energy policy as the number one threat to grid reliability in the coming years.
In MISO, EPA’s carbon dioxide regulations on power plants will lead to blackouts. We teased the results in EPA’s Green Leap Forward, but we wanted to wait until the study was published on the North Dakota Industrial Commission website before discussing them here.
You’ll recall that the EPA narrowly defined the scope of its Regulatory Impact Analysis (RIA) to compare the resource adequacy of its proposed rules to its Post-IRA base case. EPA assumed 99 percent of the emissions reductions in its proposal would occur due to the Inflation Reduction Act subsidies in its base case, but the agency did not evaluate the resource adequacy or reliability impacts of this base case.
This is the regulatory equivalent of studying the structural integrity of the top floor of a 100-story building without doing so for the preceding 99 floors.
When we ran a reliability analysis on EPA’s modeled MISO grid using historical fluctuations in wind and solar capacity factors and electricity demand, we determined the MISO grid EPA envisions would cause massive rolling blackouts, which you can see in red in the graph below.
The largest blackout event would be 25,900 MW, which would account for 19 percent of electricity demand in the region. This would leave 8.8 million people in the dark. Geographically speaking, the blackout would cause the states of North Dakota, Minnesota, parts of Western Wisconsin, and the part of MISO that covers Missouri to lose power at the same time.
The blackouts occur because the wind doesn’t show up to work. Using 2020 wind and solar capacity factors and electricity demand, we discovered a sustained wind drought where the wind was operating below EPA’s expected 14 percent capacity factors. You’ll see the blackouts spike as the wind dips down to just 4.2 percent of its potential output.
If EPA’s resource adequacy analysis in MISO was bad, EPA’s analysis for SPP essentially said: “Hold my beer.”
We detailed these findings in our piece 5.2 Million Americans Will Be Left in The Dark by EPA’s Carbon Rules on Power Plants, but it bears repeating here. EPA’s modeled SPP grid would cause 13 blackouts over the course of 13 days, which you can see in red in the graph below. The largest of these blackouts would leave 5.2 million people in the dark.
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The post Nine Slides from My Keynote Address to the Dairyland Power Cooperative appeared first on Energy News Beat.
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