TL;DR · 30-second read
The Short Version
New Jersey’s governor has signed a law that makes large data centers, the warehouse-sized buildings full of computers that run artificial intelligence and online services, pay for the power lines and equipment they need.
Until now, families worried those costs would land on their own electric bills. Power prices in the state have already climbed more than 16 percent since 2024.
The catch for tech companies: plugging into the grid in New Jersey now costs them more directly, and that could shape where they choose to build.
New Jersey Gov. Mikie Sherrill signed a package of energy legislation in the week of July 6, 2026, WHYY reported. The centerpiece creates a separate electricity ratepayer class for data centers and requires them to pay for the electrical and clean energy infrastructure upgrades their projects create. The goal is to keep those costs from being passed on to households and small businesses.
The package also includes a “Repeal ROE Adder” bill, which requires electric utilities to join the regional grid and bars them from charging customers an extra “bonus” for doing so. It also includes the Advanced Grid Technologies Act, which directs state utility regulators to scrutinize “supplemental” grid projects and speeds approval of projects that use advanced transmission technologies.
Executive Summary
New Jersey has written into law a principle that is fast becoming the central fight of the AI buildout: who pays when a data center needs the grid to grow. By putting data centers in their own rate class and assigning them the cost of the upgrades they trigger, the state turns what could have been a cost spread across all customers into a line item on the developer’s budget.
The political backdrop is electricity prices. Rates in New Jersey have risen more than 16% since 2024, according to a U.S. Senate committee report, and the U.S. Energy Information Administration counted 128,828 electricity shutoffs in the state in 2024. PJM Interconnection, which runs the regional grid, has cited data center growth as one reason for higher bills.
The Data Center Coalition says its members are committed to paying the full cost of the energy they use. Its concern is that the law’s structure could make New Jersey less predictable and less competitive. The details regulators write next will largely decide which side’s expectations prove right.
Grid Upgrades Move From the Shared Bill to the Project Budget
The mechanism is simple to state. A “rate class” is a group of customers that a utility bills under the same set of prices; residential, commercial and industrial users typically sit in different classes. By creating a dedicated class for data centers, New Jersey can price their energy use separately, so costs driven by data center demand stay with data centers rather than flowing into everyone else’s rates. The second provision is more consequential for builders: data centers must pay for the electrical and clean energy infrastructure upgrades they create. New substations, feeder lines and transformer capacity needed to serve a large AI campus become a cost the developer carries.
That changes the economics of choosing a site. An AI data center developer choosing between locations weighs land, fiber, water, tax treatment and, above all, how quickly and cheaply it can get power. In New Jersey, the “cheaply” part now explicitly includes the upgrade bill. Colocation operators (companies that build facilities and lease space to tenants) and the large cloud and AI companies that lease or build capacity will price that obligation into their comparisons with other locations in the PJM region. How large the effect is depends on how regulators define the new class and calculate upgrade costs, which the law’s sponsors have not yet spelled out in public.
The legislators’ case rests on household affordability. Assemblyman Dave Bailey, a sponsor, framed the bill as “preventing households and small businesses from paying for data centers to connect to the grid.” With rates up more than 16% since 2024 and six-figure shutoff counts, the state has chosen to make the connecting customer, not the existing customer base, absorb the risk of the upgrades.
The Industry’s Objection Is About Design, Not Payment
The Data Center Coalition’s response is notable for what it concedes. The trade group did not argue that data centers should avoid these costs; it said members are committed to paying the full cost of the energy they use. Its argument is that any approach should “align costs with cost causation,” meaning each customer pays for the costs it actually causes. It also argued that protections should be “evidence-based” and “grounded in specific cost risks,” warning that anything else risks “market friction” and uncertainty.
That is a fair question to put to the law, and a fair one to put back to the industry. Supporters have pointed to PJM’s view that data centers are pushing up bills, but in their public statements they have not put a figure on how much of New Jersey’s rate increase is attributable to data centers. The coalition, for its part, cited unnamed “other markets” as a workable model without saying which rules it would accept in New Jersey. Both sides agree on the principle that data centers should pay their way. The dispute is over how precisely that is measured, and whether rules written broadly in advance will deter investment that tightly targeted rules would not.
The Utility Half of the Package
The package does not target only data centers. The “Repeal ROE Adder” bill addresses a feature of utility pricing. Return on equity (ROE) is the profit rate regulators allow a utility to earn on its investments, and an “adder” is a bonus on top of that rate, in this case one tied to joining the regional grid. The law requires utilities to join and removes the extra charge to customers for doing so.
The Advanced Grid Technologies Act points in two directions at once. It tightens oversight of “supplemental” projects, the wires, poles and substations utilities build outside the regional planning process, to screen out spending that raises bills without clear need. It also speeds approval for projects using advanced transmission technologies, a broad category of equipment and software that can move more power over existing lines. For data center developers, that second provision could eventually matter as much as the cost rules: faster approval of capacity upgrades can shorten the wait for power, which is often the binding constraint on an AI project’s timeline.
A State Law Inside a Regional Grid
New Jersey sits inside PJM, a wholesale market and grid that spans multiple states. A state law can decide how costs are allocated among a utility’s retail customers. It cannot on its own change wholesale power prices set regionally or the capacity pressures PJM has flagged. The law is therefore best read as an allocation tool: it decides who absorbs the local costs of growth, not whether that growth strains the regional system.
That distinction matters for residents and investors alike. Households may be shielded from the local upgrade costs a new data center triggers. They remain exposed to regional supply-and-demand pressures and weather-driven price spikes, which also drove last winter’s bills. Developers, meanwhile, now face a clearer but potentially higher cost of entry in New Jersey than in neighboring locations with different rules.
Background
Data centers house the servers that power online services, storage and, increasingly, artificial intelligence. They have existed since the mid-20th century, but the AI boom has driven demand for larger sites and far more electricity. In the mid-Atlantic, that demand lands on the grid run by PJM Interconnection, which has linked data center growth to higher power bills.
New Jersey has seen electricity prices climb sharply. Last winter’s freezing weather added to bills, but rate increases have also been driven by an imbalance between supply and demand and slow construction of new generation. Supporters of data centers point to tax revenue, while some residents have raised concerns about air quality, water use and electricity costs. Source: N.J. Gov. Sherrill signs legislation to make data centers pay for infrastructure, energy – WHYY, reporting on New Jersey’s new data center rate class, grid upgrade cost rules and related utility legislation.Sources