Pennsylvania · Electric & Grid Utilities

America's #1 electricity exporter is being contracted, plant by plant, to feed AI.

Pennsylvania is the largest net supplier of power to other states, and hyperscalers are now buying its nuclear and gas fleet directly while PJM capacity costs spike and load climbs after 15 flat years. Every one of those forces moves the projects on your list. Invizion helps electric utilities re-sequence a capital portfolio in a click — and defend every decision.

The bottom line: Pennsylvania is the nation's largest electricity exporter, and hyperscalers are now contracting its nuclear and gas fleet directly while PJM capacity costs spike and load climbs after 15 flat years. The utilities that keep pace will be the ones that can re-sequence their capital portfolios as fast as the load and the auctions move.
#11
Pennsylvania is the largest net exporter of electricity to other states, and the nation's #2 nuclear generator.
~$16B2
PJM's 2025/2026 capacity auction cleared near $16 billion — roughly eight times the prior year's $2.2 billion.
819 MW3
Three Mile Island Unit 1 is restarting as the Crane Clean Energy Center under a 20-year Microsoft power deal.
$15B4
Redevelopment of the former Homer City coal plant into a natural-gas-and-data-center campus.

The Pennsylvania Landscape

Four forces are moving your project list at once

None of these is theoretical, and none of them waits for your next budget cycle. Together they mean the capital plan you approved last year may already be the wrong plan.

Demand — Load Growth

Fifteen flat years, then a data-center surge

PJM — the grid Pennsylvania anchors — now forecasts roughly 5% annual demand growth after essentially no growth from 2005 to 2020, driven overwhelmingly by data centers.2

The state's nuclear fleet is being contracted straight to the hyperscalers: Constellation is restarting the 819 MW Three Mile Island Unit 1 as the Crane Clean Energy Center under a 20-year Microsoft deal,3 and Talen sold its Susquehanna data-center campus to Amazon for $650 million, with up to roughly 1,920 MW of output dedicated to AWS by 2032.5

Reliability — Margins & Peaks

Load stacking faster than supply

PJM's peak load has reached about 147,820 MW and is forecast to climb toward 160,971 MW by 2033 as new demand arrives faster than generation is added.2

The capacity market is the warning light: the 2025/2026 auction cleared near $16 billion — roughly eight times the prior year's $2.2 billion — a signal that reserve margins are tightening across the Pennsylvania-anchored footprint.2

Generation — The Transition

Coal out, gas and nuclear back in

Pennsylvania is the largest net electricity exporter and the #2 nuclear generator in the country, with natural gas now its single largest source.1 It generated about 241.5 million MWh in 2024 — third-most of any state.6

The transition runs both directions: the 2,022 MW Homer City plant, once the state's largest coal station, is being redeveloped into a $15 billion gas-and-data-center campus,4 while retired nuclear at Three Mile Island is brought back for tech load.3

Capital — Grid & Transmission

The pressure lands on the wires

With generation being contracted directly to hyperscalers, the burden shifts to transmission and distribution. Pennsylvania's investor-owned utilities must interconnect gigawatts of new load while the PUC scrutinizes every dollar and the Distribution System Improvement Charge funds accelerated replacement between rate cases.7

Federal grid money is moving to meet it — DOE's GRIP program alone is deploying $7.6 billion across 105 projects nationwide.8 New obligations don't replace the backlog; they stack on top of it, and something on the list has to move.

Who Runs Pennsylvania's Grid

Five large investor-owned utilities, plus co-ops and municipals

Pennsylvania restructured its electric market in the 1990s: distribution stays regulated by the PUC while supply is competitive. The wires are carried by big investor-owned utilities, member-owned cooperatives, and borough electric systems. The pressures are shared; the accountability path differs.

Investor-owned utilities

Rates & capital recovery regulated by the PA PUC

PECO (Exelon) 1.6M+ electric customers · southeastern PA / Philadelphia9
PPL Electric Utilities ~1.4M customers · 29 counties, central & eastern PA10
FirstEnergy PA (Met-Ed, Penelec, Penn Power, West Penn Power) Four utilities within FirstEnergy's ~6M-customer, five-state footprint12
Duquesne Light 588,000+ customers · Pittsburgh region11
UGI Utilities (Electric) Small electric division in northeastern PA

PECO, PPL, Duquesne Light and FirstEnergy's four Pennsylvania companies each answer to the PUC for how — and how fast — they recover grid capital.7

Cooperatives & public power

Governed by members & local boards, not PUC rates

Allegheny Electric Cooperative Statewide generation & transmission co-op for PA's rural distribution co-ops13
Pennsylvania's rural electric distribution cooperatives Member-owned systems serving rural counties13
Borough / municipal electric systems Locally governed community-owned utilities

Rate-Setting & Oversight

Every capital dollar has to be defensible

Whether you answer to the Public Utility Commission or a co-op board, the question is the same: why this project, why now, why at this cost?

  • Pennsylvania Public Utility Commission (PUC) regulates rates, capital recovery, and resource planning for the state's investor-owned electric utilities — PECO, PPL, Duquesne Light, and FirstEnergy's Met-Ed, Penelec, Penn Power and West Penn Power.7
  • Distribution System Improvement Charge (DSIC) — under Act 11 of 2012, the PUC lets utilities recover accelerated infrastructure replacement through a surcharge between base rate cases, tying capital sequencing directly to cost recovery.7
  • Default-supply rates jumped in 2025. Because Pennsylvania is a retail-choice state, default “Price to Compare” supply rates reset periodically — and the roughly eightfold rise in PJM capacity costs to about $16 billion pushed those rates up across PA utilities.2
  • Restructured market. Since 1990s deregulation, distribution stays PUC-regulated while generation supply is competitive — so utilities' capital cases center on the wires, not the power plants.7

Funding On The Table

The money is moving — can your plan absorb it?

Pennsylvania's grid and generation are drawing federal and private capital at a scale not seen in a generation. The constraint is readiness: which projects qualify, which are shovel-ready, and how the timing lines up.

  • DOE GRIP: $7.6B, 105 projects nationwide across all 50 states and D.C. — grid-resilience and innovation funding that PA transmission and distribution utilities compete for.8
  • $1B DOE loan to Constellation (Nov 2025) toward the $1.6 billion Three Mile Island / Crane restart — federal capital re-entering Pennsylvania generation.3
  • $650M Amazon acquisition of Talen's Susquehanna data-center campus, plus the $15B Homer City gas-and-data-center redevelopment — private capital chasing PA power directly.54
  • Inflation Reduction Act credits — the nuclear production credit and transferable/direct-pay credits for solar and storage improve project economics for Pennsylvania generators, co-ops and municipals.

Where Invizion Fits

Turn Pennsylvania's grid build-out into a defensible capital plan

Invizion is scenario-based capital portfolio optimization built for utilities. When load forecasts jump, a grant lands, or a retirement date moves, you don't re-plan by hand for weeks — you model it and decide with a record to stand behind.

1

Model the “what-if” before it's forced on you

A data-center interconnect, a delayed transmission line, a moved retirement date — build the scenario and see the impact on the whole portfolio, side by side with today's plan.

2

Re-sequence 500 projects in a click

When priorities move, Invizion re-orders the portfolio automatically — accelerating, stretching, or deferring projects against the constraints you set, not weeks of spreadsheet surgery.

3

Give regulators or your board a defensible record

Every prioritization and trade-off is captured. When you're asked “why this project, why now,” the answer is documented — not reconstructed after the fact.

Pennsylvania's Grid, In Brief

Questions Pennsylvania utility leaders are asking

Short, sourced answers — the same facts we dig into with utilities looking at their capital programs.

Is Pennsylvania really a net electricity exporter?
Yes. Federal data ranks Pennsylvania the largest net supplier of electricity to other states and the nation's #2 nuclear generator, with natural gas its largest source.1 The state generated about 241.5 million MWh in 2024 — third-most of any state.6
Why did Pennsylvania electric bills jump in 2025?
PJM's capacity auction cleared near $16 billion — roughly eight times the prior year's $2.2 billion — and those capacity costs flow through into default supply rates for Pennsylvania customers.2
What's happening at Three Mile Island?
Constellation is restarting Three Mile Island Unit 1 as the Crane Clean Energy Center — 819 MW under a 20-year Microsoft power deal, a $1.6 billion refurbishment backed by a $1 billion DOE loan, targeting a 2027–2028 return.3
Are data centers buying Pennsylvania's power plants?
Directly. Amazon bought Talen's Susquehanna data-center campus for $650 million, with up to roughly 1,920 MW of nuclear output dedicated to AWS by 2032,5 and the former Homer City coal site is being redeveloped into a $15 billion gas-and-data-center campus.4
Who regulates Pennsylvania electric utilities?
The Public Utility Commission regulates rates, capital recovery and resource planning for the investor-owned utilities — PECO, PPL, Duquesne Light and FirstEnergy's four PA companies.7 Cooperatives and municipal systems are governed by their own members and boards.13
How does Invizion help Pennsylvania electric utilities plan capital?
Invizion is scenario-based capital portfolio optimization for utilities. It lets you model how a data-center interconnection, a capacity-price spike, or a generation retirement reshuffles your whole project list, re-sequence the portfolio automatically, and keep a defensible record of every decision for the PUC or your board.

About the Author

GB

Guy Barlow

President, Invizion

Guy Barlow leads Invizion, a capital lifecycle management platform for water and wastewater utilities. He has spent two decades at the intersection of utility capital programs, funding, and analytics, helping utilities make faster, more defensible capital decisions.

Explore Further

See how utilities keep capital plans defensible

Invizion helps utilities model, optimize, and defend their capital programs. Explore how it works, or read our latest thinking on capital planning across the utility sector.

Explore Invizion

This briefing was last reviewed September 2026.

Sources

  1. EIA — Pennsylvania State Profile and Energy Estimates: PA is the largest net supplier of electricity to other states and the #2 nuclear generator; natural gas is its largest generation source. www.eia.gov
  2. Wikipedia — PJM Interconnection: 2025/2026 capacity auction ~$16B (~8× the prior $2.2B); peak load ~147,820 MW, forecast ~160,971 MW by 2033; ~5% annual demand growth from data centers. en.wikipedia.org
  3. Wikipedia — Crane Clean Energy Center (Three Mile Island Unit 1): 819 MW; Constellation restart under a 20-year Microsoft PPA; $1.6B refurbishment; ~$1B DOE loan (Nov 2025); restart ~2027–2028. en.wikipedia.org
  4. Wikipedia — Homer City Generating Station: $15B redevelopment of the former 2,022 MW coal plant (once PA's largest) into a natural-gas-powered data-center campus, announced April 2025. en.wikipedia.org
  5. Wikipedia — Susquehanna Steam Electric Station: Talen sold its co-located data-center campus to Amazon (AWS) for $650M (2024); up to ~1,680–1,920 MW dedicated to AWS by 2032; plant nameplate 2,514 MW. en.wikipedia.org
  6. EIA — Pennsylvania Electricity Profile: net generation 241,498,648 MWh in 2024 (3rd-largest of any state); net summer capacity 48,856 MW (4th); average retail price 12.51 cents/kWh. www.eia.gov
  7. Pennsylvania Public Utility Commission — regulates rates, capital recovery and resource planning for investor-owned electric utilities; administers the Distribution System Improvement Charge (DSIC) under Act 11 of 2012. www.puc.pa.gov
  8. U.S. DOE Grid Deployment Office — Grid Resilience and Innovation Partnerships (GRIP): $7.6 billion across 105 projects in all 50 states and D.C. www.energy.gov
  9. Exelon / PECO — more than 1.6 million electric customers in southeastern Pennsylvania; the state's largest electric and natural gas company. www.exeloncorp.com
  10. Wikipedia — PPL Electric Utilities: ~1.4 million customers across 29 counties of central and eastern Pennsylvania. en.wikipedia.org
  11. Wikipedia — Duquesne Light Company: over 588,000 customers in the Pittsburgh region (Allegheny and Beaver counties). en.wikipedia.org
  12. Wikipedia — FirstEnergy: ~6 million customers across five states (OH, PA, WV, MD, NJ); its Pennsylvania utilities are Met-Ed, Penelec, Penn Power and West Penn Power. en.wikipedia.org
  13. Allegheny Electric Cooperative / Pennsylvania Rural Electric Association — statewide generation-and-transmission cooperative serving Pennsylvania's member-owned rural electric distribution cooperatives. www.prea.com