This doesn’t mean we need more gas – on the contrary, it shows that fossil fuels are expensive and unreliable, and a diverse resource mix will benefit the region far into the future. These high prices are sending a signal to build, and PJM shouldn’t stand in the way of progress. Instead, PJM seems more interested in keeping aging and expensive fossil plants alive, such as Brandon Shores in Maryland, rather than expediting the interconnection of new resources to the PJM power system.
What about retirements and load growth?
Around 6 GW of fossil plants retired since the last auction. The fossil lobby will say this is due to draconian regulations that are forcing power plants to retire before their time, but the truth is that most of these plants are no longer economically viable. Most of the retiring resources are decades-old coal plants, built in the 1960s, and some are facing bankruptcy. Lower-cost, reliable clean energy can replace even more of them, but only if they can get online – which requires PJM to accelerate the interconnection process.
Projected load growth of 3.2 GW further strained the system, which is a 2.2% increase over the last planning year. Planning for load growth and retirements is important, but the principal driver of the capacity market price increase was PJM derating the gas plants to reflect their lower reliability value. The gas derating (26 GW) was nearly three times as much as the combination of retirements and load growth.
How can we fix this?
PJM needs new resources, and quickly. The good news is that there are currently 268 GW of new resources patiently waiting to come online in PJM, and 95% of those resources are clean. Adding even a fraction of this capacity would dramatically reduce prices.
To estimate the potential cost savings, we constructed a “no backlog” scenario in which 30% of renewable projects that have been stuck in the queue for at least five years were instead assumed to be operational and had bid into the capacity market. The capacity value of these new resources would amount to an additional 7 GW of supply in the most recent auction. Adding just 7 GW of new entry could have lowered the market clearing price from $269.92/MW-day to as low as $98, or by as much as 63%. PJM delays in implementing interconnection queue reforms have effectively blocked new entry, driving up capacity costs and failing to mitigate the price impact for consumers.
