Equinor Texas Battery Goes Live as U.S. Storage Buildout Presses PJM Real-Time Prices
New battery storage projects coming online from Texas to Virginia are adding incremental supply-side weight to PJM real-time prices at $119/MWh.
Equinor ASA confirmed on Thursday (2026-09-03) that its 100-megawatt, 200-megawatt-hour Citrus Flatts battery energy storage facility in Harlingen, Texas had reached commercial operations, making it the Norwegian state-majority company's second grid-scale battery project brought online in the United States.6
PJM Western Hub real-time spot prices stood at $119.29 per megawatt-hour on Tuesday (2026-09-08). A growing inventory of battery projects, either recently commissioned or advancing through congested interconnection queues, is slowly adding supply-side weight across U.S. wholesale power markets, grid region by grid region.6
In PJM territory itself, Elevate Infrastructure and ArcLight Capital Partners commissioned the 150-MW, 600-MWh Prospect Power battery facility in Rockingham County, Virginia on June 11 (2026-06-11). Developers cited accelerating electricity demand across Virginia and the broader PJM region as the commercial rationale, with battery storage increasingly positioned as a reliability resource alongside conventional capacity.2
PJM's first reformed interconnection queue cycle drew 811 proposed projects totaling 220 gigawatts of capacity, illustrating both the depth of investor appetite and the processing backlog the operator must work through. Getting that pipeline to operational status will take years.1
Batteries hold a construction timing advantage over gas in that queue. Manufacturing backlogs for gas turbines and fierce competition for engineering and construction firms are extending timelines for new gas plant completion, Canary Media reported on August 24 (2026-08-24), while battery projects typically reach energization faster once grid interconnection is secured.4
That speed advantage does not eliminate every constraint. PJM remains a market with significant transmission bottlenecks and congested interconnection queues, even as ERCOT and California have made more progress connecting clean power to load centers, according to American Clean Power Association commentary cited by Utility Dive on September 3 (2026-09-03).5
The Texas market where Equinor's Citrus Flatts operates points to a structural divergence between grid regions. Battery storage projects operating in ERCOT average just 1.6 hours of duration, below levels common in other states, reflecting how ERCOT's energy-only market design shapes project economics differently from PJM's capacity market framework.5
On the demand side, tech companies with large and growing loads concentrated in PJM territory face political pressure under the White House's Ratepayer Protection Pledge to meet electricity needs without burdening grid customers, creating uncertainty around the net demand profile that battery dispatch must plan against.3
Google has assembled 1 gigawatt of demand response capacity under long-term contracts with I&M, the Tennessee Valley Authority, Entergy Arkansas, Minnesota Power, and DTE Energy, enabling it to curtail or shift compute workloads during peak periods. That flexibility shaves load peaks in PJM. It does not remove the underlying demand trajectory.1
NYMEX Henry Hub front-month natural gas eased 1.0% to $2.96 per MMBtu on Tuesday (2026-09-08), keeping the marginal cost of gas-fired generation low. At that gas price, battery assets competing in energy-only market segments face tighter spread opportunities than they would under materially higher fuel costs, which limits how aggressively new storage can push real-time prices lower even as capacity accumulates.
With 220 gigawatts of proposed capacity sitting in PJM's first reformed queue cycle and projects like Prospect Power and Citrus Flatts confirming that batteries can clear the commissioning hurdle, the pace of actual deliveries into the region over the next 12 to 18 months is what shapes the real-time price outlook. Transmission constraints, turbine and equipment supply chains, and regulatory timelines are the friction between announced capacity and operational megawatts — and on all three, the picture across PJM remains uneven.1,4,2