PJM’s power-starved grid will finally get a big battery this year

Elevate Renewables just acquired a major energy storage project near Virginia’s ​“Data Center Alley” and plans to get it running by this summer.

The mid-Atlantic grid operator PJM Interconnection faces a capacity crunch of titanic proportions as AI computing investment rushes headlong into its 13-state region, home to more than 67 million people. The most recent PJM capacity auctions — where the grid operator pays in advance for power plants to be available to serve the grid — hit record-high clearing prices in December, portending more expensive electricity for the region.

The developer Elevate Renewables is tackling that dire need by accomplishing something unheard of in the PJM region: building a really big battery. The company, launched by private equity firm ArcLight in 2022, announced today that it had acquired a 150-megawatt/600-megawatt-hour battery project in northern Virginia and will complete construction by mid-2026. Called Prospect Power, the project could be bolstering the grid near the state’s famed ​“Data Center Alley” just in time for the summer spike in electricity use.

“The states want capacity, they want affordability, they want in-state resources,” Elevate CEO Joshua Rogol told Canary Media. ​“Storage can clearly be part of the solution to that problem. It is one of the few resources that can come online quickly, given how long it takes to develop and build a project given the supply chain as it exists today.”

Fossil gas still generates more power across the U.S. than any other resource, but battery storage has become the top source of on-demand power being built today (solar, as an intermittent producer, does not meet that definition).

However, almost all the storage action, and its resulting benefits, has happened in California and Texas. Data firm Modo Energy drew the comparison in a report last year: ​“In the past five years, PJM has added just 200 MW of grid-scale battery capacity — while Texas and California have cumulatively built more than 20 GW of [battery energy storage systems] over the same period.” It’s as if a major swath of the country saw a few states adopting smartphones and said, ​“No, thanks, we’re happy with flip phones.”

Tough times for batteries in PJM

PJM’s failure to keep up with this particular grid technology is particularly surprising because PJM actually created the modern storage market back in 2012, by letting batteries compete for the rapid-fire grid service known as frequency regulation. Those rules spurred a buildout of 181 megawatts by 2016, according to Modo — heady stuff at the time, and well before storage in California and Texas took off. But these batteries tended to have just 15 minutes of duration, because that’s all that was needed to perform that role for the grid.

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Will utility batteries still be lithium? Where power to weight ratio is less important other choices could be more attractive.

ArcLight-backed Elevate Renewables has acquired the 150MW, four-hour duration Prospect battery storage project in Rockingham County, Virginia from Swift Current Energy.

This is an existing lithium battery storage facility in Virginia.

State policy and utility contracts make storage possible

Prospect Power could be the project that breaks the dry spell, and it’s taken many hands to make that possible.

Storage specialist Eolian Energy, known for its pioneering battery construction in Texas, started developing the project back around 2017 in a joint venture with Open Road Renewable Energy. Eolian CEO Aaron Zubaty wanted to place a project ​“anywhere we could within a 100-mile radius of northern Virginia to feed the data center load growth.” But Data Center Alley is ringed by rolling Virginia horse country, where landowners were not enthusiastic about power plant construction.

The joint venture ended up securing a parcel farther west, over the Blue Ridge Mountains, that could ship power directly to northern Virginia. In 2023, the joint venture sold the project to Swift Current Energy, which secured a 15-year contract from utility Dominion Energy. That dependable revenue stream helped Swift Current lock down a $242 million financing package last September to build the project.

Now, Elevate has emerged as the long-term owner, which will operate the finished battery just in time to navigate the choppy waters of PJM amid the AI boom.

The Prospect battery broke through the PJM logjam because state policy created an opening.

PJM governs the energy markets for the whole region, but individual states can layer on their own policies, and Virginia passed a comprehensive clean energy law in 2020. This law sets a 100% renewable electricity target and requires Dominion, the largest utility in the state, to procure 2.7 gigawatts of energy storage by 2035, some of which must be owned by third parties.

Virginia also has long been home to the densest cluster of data centers in the world, stemming from Cold War defense investments that kick-started a dense fiber-optic network there. That has naturally evolved into ground zero for AI computing investment, which is putting utilities in a bind as they try to figure out how to deliver enough power for the new computing behemoths.

“There is a need for capacity, and the states are stepping up to incent that battery capacity to come online, to drive affordability and reliability,” Elevate’s Rogol said.

Prospect checks off part of Dominion’s energy storage obligation under state law, and it delivers a powerful tool for meeting Data Center Alley’s needs during peak hours, when the grid might struggle.

As for what the battery will do exactly, the short answer is, whatever Dominion asks for. Under the contract, known as a tolling agreement, Elevate will own the battery and keep it in fine working condition, Rogol said, while Dominion will dispatch it to monetize regulation, energy arbitrage, and capacity as it sees fit.

The conditions that made Prospect possible, then, aren’t in place across most of PJM’s territory, though the PJM states of Illinois, New Jersey, and Maryland have enacted policies that support storage build-out, too. Prospect may be a lonely giant for a few more years, but the sheer need for more capacity should change that sooner or later.

“With limited availability of gas turbines; constraints on gas fuel supply; challenges siting, permitting, and building new gas plants; and a limited number of gas plants in advanced development, it is difficult to see how growing demand in PJM will be met anytime soon without a lot of storage filling the gap,” said Brent Nelson, managing director of markets and strategy at the research firm Ascend Analytics. ​“But mechanisms to provide stable revenues will be critical for getting projects financed and built.”

When the PJM region figures out those mechanisms, Zubaty expects the situation to improve.

Didn’t PJM build on LNG terminal (in Chesapeake Bay?) due to limited pipeline capacity from the Gulf (before shale gas).

In NJ all energy was imported one way or another (before wind farms). Had nuclear but its fuel was imported too. Boston also has LNG terminal. Most homes heated by fuel oil. In Baltimore gas company was not accepting new customers. New homes had to be heat pump.

The east has a very different energy profile than the rest of the country. Way back when Pennsylvania coal was delivered by the anthracite canals across NJ.

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