What’s Keeping the Lights On?

Welcome to Grid Brief! Today we’re looking at power generation and power prices in America’s power markets, with news items where relevant.

What’s Keeping the Lights On?

Let’s start with a snapshot of generation nation-wide:

Natural gas and nuclear continued their streak in the top two, while third place was contested by coal, wind, and solar.

And here’s a map to orient you as we move through the market areas:


Natural gas ramped up and down in first place, while nuclear and hydro held second and third.

Real-time prices spent the first half of the week above day-ahead before easing up and then sinking twice into the negatives.

New Hampshire’s Merrimack Station coal plant is slated to close next summer, triggering a debate over what will replace it on the New England grid.


Natural gas, nuclear, and coal kept America’s largest power market humming.

PJM had a relatively sedate week until real-time prices spiked to over $400 MWHr on the 10th.

“PJM's Market Implementation Committee endorsed a PJM proposal to revise how it measures and verifies the capacity that energy efficiency resources may enter into Base Residual Auctions,” reports RTO Insider. 

Two Illinois Democrats have introduced a bill that would exempt the state’s blackstart facilities from emissions regulations.

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