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How AI Data Centers Are Raising Your New Jersey Electric Bill — and What the State Is Doing About It

Illustration for the article How AI Data Centers Are Raising Your New Jersey Electric Bill — and What the State Is Doing About It

Summary

If your New Jersey electric bill jumped 17 to 20 percent on June 1, 2025, you were not imagining things — and data centers running artificial intelligence workloads bear a large share of the blame. According to the independent market monitor for the PJM grid that serves New Jersey, data centers were responsible for 63 percent of the cost increase in the most recent capacity auction, translating to roughly $9.3 billion passed on to customers across the PJM region in higher electric rates.

To understand the scale of the problem: a single hyperscale data center drawing 100 megawatts of power requires roughly as much electricity as 80,000 U.S. households, according to the Congressional Research Service. Under the rules that existed before 2026, New Jersey homeowners were effectively subsidizing the grid upgrades those facilities demanded — a structural imbalance that has been building for several years.

On July 7, 2026, Governor Mikie Sherrill signed legislation — P.L. 2026, c.32 (S731/A796), known as the Data Center Fair Share Act — that creates a separate ratepayer class for large data centers and requires them to cover their own grid infrastructure costs. The New Jersey Board of Public Utilities (NJBPU) has 12 months from enactment to establish the specific tariff.

The structural fix is real, but its full impact on residential bills will not arrive overnight. The BPU rulemaking process takes time, PJM’s capacity market operates years in advance, and the 2025 rate spike is already baked into bills through May 2026. What homeowners can do right now is reduce how much grid electricity they buy in the first place — by going solar, adding battery backup, or pairing both with a standby generator.

Why did PJM capacity prices spike, and what does that have to do with my bill?

PJM Interconnection is the regional grid operator that manages electricity delivery across 13 states and the District of Columbia, including all of New Jersey. To keep the lights on, PJM runs a forward capacity auction — a market where power suppliers are paid to guarantee they will have generation available during a future peak-demand period. Those auction costs are ultimately passed through to utility customers, including every residential account served by PSE&G, JCP&L, Atlantic City Electric, and Rockland Electric.

For the 2025/2026 delivery year, PJM’s capacity auction cleared at a record $269.92 per megawatt-day — a figure that drove the across-the-board rate hikes New Jersey residents absorbed starting June 1, 2025. The New Jersey Board of Public Utilities confirmed that the resulting bill increases ranged from 17.23 to 20.20 percent depending on the customer’s utility. For a PSE&G residential customer using a typical 650 kWh per month, that worked out to roughly $27 more on every monthly bill.

The capacity market is not the only cost component on a bill, but it is the one that moved most sharply. Capacity charges make up roughly a fifth of a typical energy bill, so when auction prices spike, the effect on what households actually pay is immediate and significant. PJM’s own market monitor has been direct about the cause: the grid is tight because demand is rising fast and supply is not keeping up.

How much of the price spike did AI data centers actually cause?

PJM’s independent market monitor, Monitoring Analytics, has pointed squarely at data centers. In a report covering the 2025/2026 capacity auction, Monitoring Analytics estimated that data centers were responsible for 63 percent of the price increase, translating to $9.3 billion in costs that will be recovered from PJM customers through higher electric rates. A separate Utility Dive analysis of the subsequent auction found that data center load drove up capacity auction revenue by $7.3 billion, or 82 percent, compared to what prices would have been without data center demand.

The market monitor’s own summary leaves little ambiguity: “Data center load growth is the primary reason for recent and expected capacity market conditions, including total forecast load growth, the tight supply and demand balance, and high prices.” That language has appeared in multiple consecutive monitoring reports.

The geographic concentration makes matters worse for New Jersey. The state represents 12 percent of PJM’s total demand but was shouldering nearly 22 percent of PJM’s supplemental project spending — the largest differential of any PJM state, according to Rocky Mountain Institute. Supplemental transmission projects — substations, new lines, infrastructure upgrades — accounted for 79 percent of New Jersey ratepayer transmission costs between 2008 and 2025, totaling about $14.7 billion. A large share of that spending is tied to accommodating new large-load customers, yet the costs were distributed across all ratepayers.

How much electricity does a single large data center actually use?

The numbers are hard to visualize, which is partly why the policy debate took so long to reach homeowners. The Congressional Research Service defines a hyperscale data center as a facility with a power draw exceeding 100 megawatts, noting that roughly 100 MW of electric power is sufficient to support the electricity needs of 80,000 U.S. households. The largest facilities being built today draw far more: some planned campuses exceed 650 MW, enough to power nearly half a million homes.

AI workloads are what pushed consumption to these levels. Training and running large language models requires enormous amounts of GPU computing power, and those GPUs run around the clock. McKinsey research indicates that AI data centers could consume 11 to 12 percent of the United States’ total electricity by 2030, potentially creating supply deficits in many regions. PJM’s own 2026 long-term load forecast projected 32 gigawatts of peak load growth from 2024 to 2030, with 94 percent of that growth attributed to data centers.

For New Jersey specifically, interconnection requests for data centers and other large-load projects in PSE&G’s service territory alone jumped from 400 MW in 2024 to 4,700 MW in 2025 — more than a tenfold increase in a single year. That kind of demand growth requires costly infrastructure investment, and under the old rules, the bill for those upgrades fell on every ratepayer regardless of whether they benefit from the data centers at all.

What did Governor Sherrill sign in July 2026, and what does it actually require?

On July 7, 2026, Governor Mikie Sherrill signed a three-bill energy affordability package. The centerpiece for ratepayer protection is P.L. 2026, c.32 (S731/A796), the Data Center Fair Share Act. As the official governor’s office summary states, the law “will create a new ratepayer class and rate structure for data centers, ensuring they pay for their own energy use and associated grid infrastructure.”

The mechanics work as follows. The law requires the NJBPU to establish standards governing electric service to large data center customers for each electric public utility, and mandates cost-allocation rules to ensure other utility customers do not subsidize large data center customers. The NJBPU must develop this tariff with stakeholder input within 12 months of enactment. The threshold for coverage under the law — as enacted — requires the BPU to define “large data center” with a minimum megawatt size not greater than 50 megawatts. An earlier version of the bill set the threshold at 100 MW; the final legislation lowered it to capture a broader set of facilities.

The law also includes several additional consumer protections. Prospective data centers must provide financial guarantees that they will take or pay for at least 85 percent of the service they request for a minimum of 10 years. The law also requires data centers to curtail their power use during grid emergencies before residential customers are affected, and incentivizes them to bring their own clean energy generation online rather than simply drawing from the shared grid. The two companion bills in the same package eliminated an unnecessary utility incentive for PJM membership and tightened state oversight of utility infrastructure spending.

Will the new law actually lower my electric bill, and if so, when?

This is the question every New Jersey homeowner is asking, and the honest answer is: the structural fix is real, but the timeline for relief is gradual. The Sherrill administration projected that the full package of actions taken over the past six months, including the three bills, will save New Jersey ratepayers more than $1 billion annually, based on an analysis by Synapse Energy Economics. However, the administration did not release a breakdown showing the expected savings from each individual policy.

Several layers of regulatory process must play out before the data center tariff reduces a residential bill. The NJBPU has 12 months to develop and finalize the tariff standards. After that, utilities must submit their tariff filings, which the BPU then reviews. Separately, PJM’s capacity auctions operate on a roughly three-year forward timeline — meaning the costs already embedded in your current rate reflect auction results from 2024, and the next round of price pressure is already in the pipeline. The Citizens Utility Board noted in August 2026 that 67 million customers across the PJM region are facing a years-long electricity price spike, and the problem will not go away without decisive action at multiple levels.

The more immediate relief in the July 2026 package was a one-time bill credit: all 3.6 million New Jersey residential electric customers received a $25 August credit, with an additional $150 for lower- to moderate-income households. Those credits are welcome but do not alter the underlying rate structure. The longer-term question is whether the new data center tariff, combined with PJM-level market reforms, can prevent the next round of capacity auctions from producing another record-setting price. As of this writing, that outcome is not guaranteed. For a detailed look at what rate changes may still be ahead, see our earlier post on what JCP&L customers could face in 2027 and 2028.

Are there PJM-level reforms being considered as well?

The New Jersey legislation is a state-level response to a regional market problem. PJM and federal regulators are also under pressure to act. PJM’s market monitor stated that “the price impacts on customers have been very large and are not reversible,” and that impacts will be even larger “unless the issues associated with data center load are addressed in a timely manner.”

PJM has said it is working on multiple fronts: extending market price caps that were put in place after the 2025/2026 auction, authorizing multiple transmission expansion projects, and reforming wholesale electricity market rules. The Citizens Utility Board has called on PJM to exclude data centers that do not bring their own new capacity from the capacity auction’s demand forecast — a change that would directly reduce future auction clearing prices. Without that reform, every new speculative data center proposal inflates the demand figure PJM uses to procure capacity, which inflates the price paid by all customers.

PJM’s 2026 Long-Term Load Forecast found that 94 percent of projected peak load growth from 2024 to 2030 is attributed to data centers, with the annual summer peak growth rate rising to 3.6 percent per year versus the 0.3 percent rate in its 2021 forecast. Without both state and federal action, that trajectory will continue to pressure household bills for years.

What can a New Jersey homeowner do right now to reduce exposure to rising grid prices?

The most direct way to protect yourself from grid rate increases is to generate your own electricity. A rooftop solar system converts sunlight into power that offsets what you would otherwise buy from PSE&G or JCP&L at whatever rate the next auction produces. New Jersey’s net metering program lets you roll excess generation into credits on your bill. And New Jersey still maintains the SREC-II program, which pays you for every megawatt-hour your system generates — though the SREC-II incentive has dropped to $77/MWh, so locking in a system sooner rather than later remains advantageous. Green Sun Energy Services installs residential solar panels throughout Monmouth County and can show you projected savings based on your actual utility account.

Solar alone, however, does not protect you from a grid outage during the kind of summer heat events that strain the PJM system. A Generac standby generator provides automatic backup power when the grid goes down — an increasingly practical concern as PJM’s market monitor has warned that recent auctions fell short of reliability targets. Unlike a portable generator, a standby unit connects to your home’s natural gas or propane supply and turns on within seconds of an outage, without any action on your part.

If you are also considering an electric vehicle, a home EV charger installation paired with solar lets you charge from the panels on your roof rather than from the grid at whatever rate PJM’s next auction produces. The combination of solar, storage or backup generation, and an EV charger represents the most complete hedge a homeowner can take against the grid pricing forces described in this post. You can also review our earlier guide to protecting your wallet from NJ electric rate hikes for additional steps.

Frequently Asked Questions

Why did my New Jersey electric bill go up so much in June 2025?

Starting June 1, 2025, New Jersey’s four electric utilities raised supply rates by 17 to 20 percent, depending on which utility serves your address. The increases reflected higher costs from PJM’s capacity auction, driven primarily by surging electricity demand from data centers. The New Jersey Board of Public Utilities certified the results but has no authority to influence pricing in the wholesale auction.

What is PJM and why does it affect my New Jersey electric bill?

PJM Interconnection is the regional grid operator that manages electricity transmission across 13 states and Washington D.C., including all of New Jersey. PJM runs a forward capacity auction to ensure there is enough generation available during future peak-demand periods. The auction costs are passed through directly to utility customers — without markup, but also without any ability for the utility to negotiate — on your monthly bill.

What percentage of the PJM price increase was caused by data centers?

According to Monitoring Analytics, the independent market monitor for PJM, data centers were responsible for 63 percent of the price increase in the 2025/2026 capacity auction, translating to approximately $9.3 billion in additional costs passed on to customers across the PJM region. The market monitor has called data center load growth “the primary reason” for recent and expected capacity market conditions.

What did New Jersey's 2026 data center law actually do?

Governor Sherrill signed P.L. 2026, c.32 (S731/A796) on July 7, 2026. The law creates a separate ratepayer class for large data centers and directs the NJBPU to establish a dedicated tariff within 12 months. Data centers covered by the tariff must provide a 10-year financial guarantee to pay for at least 85 percent of the electric service they request, and must curtail power use during grid emergencies before residential customers are affected.

Will the new data center law lower my electric bill right away?

Not immediately. The NJBPU must develop and finalize its tariff standards first, a process that can take the full 12-month window the law allows. PJM’s capacity market also operates on a forward timeline of roughly three years, so costs already in the pipeline will continue to affect bills. The administration projects the full package of 2026 legislation will save New Jersey ratepayers more than $1 billion annually, but did not break out a figure specific to the data center tariff alone.

How big is a data center that would be covered by New Jersey's new law?

The enacted law sets a threshold the NJBPU must define at no greater than 50 megawatts. To put that in context, the Congressional Research Service notes that 100 megawatts is enough electricity to support approximately 80,000 U.S. households. A 50 MW facility would consume roughly half that amount. The largest AI hyperscale data centers being planned today can exceed 650 MW.

How can a solar system protect me from future PJM rate increases in New Jersey?

A rooftop solar system generates electricity from sunlight, offsetting the kilowatt-hours you would otherwise purchase from your utility at whatever rate the next PJM auction produces. New Jersey’s net metering program allows you to bank excess generation as bill credits. Combining solar with a standby generator provides both bill protection and backup power during outages that can increase in frequency when grid capacity margins are tight.

Is the data center electricity problem unique to New Jersey?

No. The PJM capacity market covers 13 states and D.C., and the price increases have been felt across the entire region. However, New Jersey’s situation is particularly acute: the state represents 12 percent of PJM’s total demand but was absorbing nearly 22 percent of PJM’s supplemental project spending — the largest imbalance of any PJM state. New Jersey’s July 2026 legislation has been cited as a potential model for other states facing similar pressures.

The Bottom Line

The Bottom Line

The connection between AI data centers and your New Jersey electric bill is no longer a theory — it is documented in PJM market monitor reports, confirmed by the NJBPU, and significant enough that the state legislature responded with major structural legislation. The Data Center Fair Share Act signed by Governor Sherrill on July 7, 2026, is a meaningful step: it ends the arrangement under which residential customers quietly subsidized the grid infrastructure costs of some of the world’s largest technology companies. But the BPU rulemaking process takes time, PJM’s forward market means today’s bills reflect decisions made years ago, and the Citizens Utility Board has noted that the price impacts are not reversible in the short term. New Jersey homeowners should expect continued rate pressure in 2026 and 2027, with structural relief arriving gradually as the new tariff framework takes effect and, if PJM adopts complementary reforms, slowing the pace of future capacity price increases.

For Monmouth County homeowners, the practical takeaway is straightforward: waiting for wholesale market reforms to flow through to your bill is a passive strategy. Going solar locks in a known cost for the power your panels generate, insulating you from whatever the next capacity auction produces. Adding a Generac standby generator means grid reliability concerns do not translate into outages at your home. And pairing solar with an EV charger lets you run a vehicle on electricity you generate rather than electricity priced at today’s elevated grid rates. Green Sun Energy Services, based in Monmouth County, can walk you through the options and provide a no-obligation assessment of what makes sense for your home — without pressure and without guesswork about future rates.

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