This Natural Gas Plant Is a Poster Child for America’s Grid Weirdness

At least one natural gas plant in America’s biggest energy market that was scheduled to shut down is staying open. Elgin Energy Center, an approximately 500 megawatt plant in Illinois approximately 40 miles northwest of downtown Chicago was scheduled to shut down next June, according to filings with the Federal Energy Regulatory Commission and officials from PJM Interconnection, the country’s largest regional transmission organization, which governs the relevant portion of the U.S. grid. Elgin’s parent company “no longer intends to deactivate and retire all four units ... at the Elgin Energy Center,” according to a letter dated September 4 and posted to PJM’s website Wednesday.

The Illinois plant is something of a poster child for PJM’s past few years. In 2022, it was one of many natural gas plants to shut down during Winter Storm Elliott as the natural gas distribution seized up. Its then-parent company, Lincoln Power — owned by Cogentrix , the Carlyle Group’s vehicle for its power business — filed for bankruptcy the following year , after PJM assessed almost $40 million in penalties for failing to operate during the storm. In June, a bankruptcy court approved the acquisition of the Elgin plant, along with one other , by Middle River Power, a generation business backed by Avenue Capital, a $12 billion investment firm, in a deal that was closed in December.

The decision to continue operating the plant past its planned deactivation comes as PJM set a new price record at its capacity auction in July, during which generators submitted bids for power that can be deployed when the grid is under stress due to high demand. The $14.7 billion auction was a massive jump from the previous one, which finished a t just over $2 billion. Ironically, one reason the most recent auction was so expensive is that PJM gave less credit to natural gas generators for their capacity following Winter Storm Elliott, which then drove up auction prices, leading to large payouts for gas plants. PJM said the high auction prices were “caused primarily by a large number of generator retirements.”

In a bankruptcy court filing in 2023 , Lincoln Power’s chief restructuring officer said that the company “was experiencing a liquidity crunch” due to low prices in past capacity auction, which meant that it had “received significantly less revenues for the capacity they sold in those Capacity Auctions as compared to previous Capacity Auctions.” With higher capacity revenues in PJM, presumably Elgin's business has improved.

Many analysts are skeptical that PJM can quickly get new load onto the system to bring prices down meaningfully in subsequent auctions — the next one is in December — and the PJM queue for new projects is absurdly clogged. This only juices the incentives for older fossil plants to stay open.

“This shortage of capacity is happening immediately,” Nicholas Freschi, senior associate at Gabel Associates, told me last week. “There might be more resources, and PJM might be able to coerce some retiring or not participating plants to make up for the shortfall. It’s an immediate problem.”

Neither Middle River nor its attorney representing the company before FERC returned requests for comment.

Read more: This Is How You Die of Extreme Heat