A New Jersey Bill Would Cover Up to 40% of Customer-Owned Battery Storage Costs
A bill that would direct New Jersey to subsidize up to 40 percent of a customer’s battery storage project cleared the State Senate Environment and Energy Committee on June 9.
S-631, sponsored by Sens. Bob Smith and Linda Greenstein, instructs the Board of Public Utilities to build an incentive program for energy storage owners. Systems “owned by both customers and public utilities” that meet the board’s performance requirements would qualify for incentives covering up to 40 percent of each project’s total cost. At least 25 percent of the program’s incentives would be reserved for owners that face greater economic hurdles to adoption.
The bill has cleared one committee. It is not law, and the BPU has not written the performance requirements that would govern eligibility. What it signals is more specific than its legislative status suggests.
The grid-scale track. New Jersey has already moved on the utility side of its storage policy. In March, Governor Sherrill signed an expansion of the Garden State Energy Storage Program, the transmission-scale track of the state’s storage agenda. That program is built to procure large, grid-connected assets through competitive solicitation: developers bid capacity, and the board awards incentives to the cheapest qualifying projects.
A different instrument. S-631 is aimed at a different segment. A percentage-of-cost subsidy paid to the system owner does not select for the lowest-bid megawatt. It lowers the upfront price for whoever installs a qualifying battery, including the office building, the cold-storage warehouse, the hospital, and the supermarket that would never enter a wholesale capacity solicitation. A competitive auction reaches the transmission system; a cost-share subsidy reaches the meter.
National data make the segmentation visible without resolving it. SEIA and Wood Mackenzie recorded a record US storage quarter in early 2026, with solar-plus-storage combining for 91 percent of new generating capacity and solar alone accounting for 60 percent, even as solar installations fell 27 percent year over year. Those figures are reported fleet-wide and do not break out the commercial behind-the-meter segment. A competitive megawatt auction and a customer cost-share are pointed at different parts of that aggregate, and only the second is structured around the individual building.
The economics. A customer-sited battery earns its return primarily by shaving demand charges, the per-kilowatt fees a utility bills against a building’s highest fifteen-minute or hourly draw in a month. Those charges are a substantial line on a commercial bill in the PSE&G and JCP&L territories that make up New Jersey’s high-demand-charge PJM market. The battery discharges into the peak, the recorded maximum falls, and the demand charge falls with it. The savings are real, but the payback is long, because the upfront capital is large relative to the monthly bill line it attacks.
A subsidy covering up to 40 percent of project cost changes that arithmetic directly. The federal investment tax credit already offsets part of a qualifying storage project, and a state cost-share layered onto it, depending on how the BPU structures stacking, would leave the building owner financing a smaller fraction of the installed price. The metric that decides commercial storage deals is years to payback, and cutting effective capital cost by as much as 40 percent removes years from it.
The equity carve-out. Setting aside at least 25 percent of incentives for owners facing greater economic hurdles signals that the program is meant to reach buildings that cannot self-finance, not only the well-capitalized corporate campuses that can already pencil a battery without help. How the BPU defines “greater economic hurdles” will determine whether that quarter of the money flows to small commercial and affordable multifamily owners or to a narrower set of qualifying projects. It is the clause that decides who actually shows up.
What is settled. New Jersey now has both halves of a storage incentive architecture moving at once. The grid-supply half became law in March. The customer-sited half advanced out of committee with a defined cost-share and an equity carve-out. This is the second New Jersey storage bill to move in roughly three months.
What is not settled is most of the path. The bill must pass both chambers and be signed, and the BPU must then design performance requirements, a funding source, and stacking rules before a single building qualifies. Any of those steps can narrow the program or delay it past the point where the 40 percent headline survives. The funding question in particular is not answered in the bill, and a distributed cost-share at scale will have to find a source.
The pattern worth noting is the sequencing. States have generally incentivized grid-scale storage first, because capacity auctions are administratively familiar and the assets are large enough to move policy targets quickly. The behind-the-meter segment, smaller per project and harder to procure in bulk, tends to come second if it comes at all. New Jersey is now writing the second part. Whether the 40 percent figure holds through rulemaking will say more about the state’s commercial storage market than the committee vote does.
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