Demand response accounted for 5%, hydro for 4%, while wind and oil each represented 2%, and solar comprised 1%. On 14 July, PJM announced it had procured 138,318MW of unforced capacity generation (UCAP) and demand response from its 2028/29 Base Residual Auction. The Flint Grid Project is also the first grid-scale BESS permitted by the Ohio Power Siting Board and will be the largest BESS built to date in Ohio and PJM. A 150MW/600MWh BESS brought into commercial operation by IPP Elevate Renewables in June is the largest standalone BESS in operation in PJM. Flint Grid is expected to enter commercial operation in advance of the 2027–2028 PJM capacity year.