PJM Interconnection, the regional grid operator serving 13 states and the District of Columbia, announced on June 16, 2026 via its Inside Lines publication that its overhauled generator interconnection process is delivering results. The announcement, titled “New Interconnection Process Delivers,” signals that the reformed study framework — approved by federal regulators in 2022 to replace PJM’s clogged first-come, first-served queue — is now moving projects through review at a pace the old system could not match.
Executive Summary
Interconnection is the process by which a new power plant, battery, or other resource gets studied and approved to plug into the transmission grid. For years it has been one of the most stubborn bottlenecks in American energy: PJM’s legacy queue accumulated thousands of speculative and serious projects alike, with study timelines stretching years and many projects withdrawing before ever being built. In 2022, PJM won federal approval to replace that serial queue with a cluster-based, “first-ready, first-served” model that studies projects in batches and requires financial commitments up front to weed out placeholders.
PJM’s declaration that the new process “delivers” matters because the region is simultaneously facing surging electricity demand — driven prominently by data center growth in markets like Northern Virginia, the largest data center concentration in the world — alongside the retirement of older generation. Whether new supply can be connected fast enough is now a first-order question for grid reliability, electricity prices, and the pace of digital infrastructure buildout.
The announcement is a progress marker rather than a finish line: clearing studies is a necessary step, but megawatts only matter once projects secure equipment, financing, and construction — stages the interconnection process does not control.
Why the Queue Became the Grid’s Chokepoint
Under the old regime, PJM studied interconnection requests one at a time in the order received. That design worked when a handful of large plants applied each year, but it collapsed under the modern development model, in which developers file many speculative requests — often for renewables and storage — and decide later which to build. Each withdrawal forced restudies of everyone behind it, compounding delays. The result was a backlog measured in years, and a paradox: enormous volumes of proposed generation on paper, with comparatively little of it reaching commercial operation.
The reformed process attacks this structurally. Projects are studied together in clusters, network upgrade costs are shared across the cluster rather than assigned by queue position, and developers must post deposits and demonstrate site control to stay in. “First-ready, first-served” replaces “first-in-line,” which changes developer incentives from claiming a place early to being genuinely prepared. This is a governance fix as much as an engineering one — and PJM’s announcement suggests the incentive redesign is doing its job.
The Collision With Data Center Demand
PJM’s territory includes the densest data center market on the planet, and the region’s load forecasts have swung from decades of flat demand to sustained growth. That reversal makes interconnection speed a commercial issue for the digital infrastructure industry, not just a utility concern: a data center campus is only as viable as the power that can reach it, and new generation stuck in study limbo tightens capacity markets and pushes up costs for every large power buyer.
For data center operators, colocation providers, and their customers, a functioning interconnection pipeline is upstream of everything — site selection, lease pricing, and expansion timelines. If PJM can convert its backlog into energized projects, it relieves pressure on the supply side of an equation that has recently been dominated by demand headlines. If it cannot, the alternatives — demand curtailment, delayed retirements of aging plants, or higher capacity prices — all carry costs that eventually land on tenants and end users.
From Cleared Studies to Steel in the Ground
A cleared study is not a power plant. Projects that emerge from PJM’s process with signed interconnection agreements still face equipment lead times — transformers and high-voltage gear remain constrained industry-wide — plus financing, permitting, and supply chain realities. Historically, a large share of queued projects never get built, so the headline metric that matters over time is commercial operation dates, not study completions.
It is also worth noting the source here: this is PJM’s own publication reporting on PJM’s own reform. That does not make the claim wrong — grid operators publish detailed queue statistics that independent analysts scrutinize closely — but a self-assessment titled “Delivers” should be read as a progress report from the institution being measured. The durable test is whether independent queue data shows sustained throughput across successive study cycles, and whether new entrants, not just legacy backlog projects, move through on predictable timelines.
Background
PJM Interconnection, headquartered in Pennsylvania, is the largest regional transmission organization in the United States, coordinating the grid and wholesale power markets from the Mid-Atlantic into the Midwest. Like other U.S. grid operators, PJM saw its interconnection queue swell dramatically through the early 2020s as renewable, storage, and gas projects applied faster than its serial study process could handle, prompting a FERC-approved overhaul in 2022 that shifted to clustered, readiness-based studies and a phased transition to work off the backlog.
The reform arrived just as PJM’s demand outlook inverted. After years of flat load, forecasts turned sharply upward on data center growth and electrification, while older coal and gas plants moved toward retirement — making the speed at which new resources can connect a central reliability and cost question for the region, and a closely watched variable for the digital infrastructure industry that depends on PJM power.
Source: New Interconnection Process Delivers — PJM Inside Lines, PJM’s June 16, 2026 self-published update on the performance of its reformed generator interconnection process.