Power Supply Chain and Demand in Connecticut
ISO-NE runs most of Connecticut's grid. 625 MW of new generation is planned in Connecticut, 97 MW of it under construction or built and awaiting operation, against 8 MW of planned retirements through 2030. 33 data centers are identified in the state. Residential electricity averaged 27.97¢/kWh in 2026 through July, -7.7% from a year earlier. Unemployment was 5.1% in August 2026, and construction employment is +11.2% against August 2019. The SAVRN trackers hold 6 local moratoria or restrictions for Connecticut across all statuses (6 in force) and 3 named projects on the Delay Watchlist.
What the build-out changed in Connecticut
Connecticut is in the middle of the pack, with a few sharp signals worth watching. Data processing and hosting jobs grew 124.2% from 2019 to 2025, 2nd of 46 states that disclose the industry. The data center industry now accounts for 1.5% of Connecticut's economy, the 30th largest share of any state (the median state is 1.8%), counting the industry's in-state suppliers and payrolls. Commercial electricity sales, the class that includes data centers, are +0.7% year to date, 31st in the country. The weak spot: power line construction jobs, 2019 to 2025 ranks 43rd of 44 at -23.2%. Factory employment is the exception: manufacturing jobs are -3.1% against August 2019.
Then and now
| Measure | Then | Now | Change | U.S. rank |
|---|---|---|---|---|
| Construction jobs (Aug 2019 → Aug 2026) | 59.8k | 66.5k | ▲ 11.2% | 31st of 48 |
| Electrical contractor jobs (2019 → 2025) | 9,284 | 10,187 | ▲ 9.7% | 36th of 48 |
| Power line construction jobs (2019 → 2025) | 1,672 | 1,284 | ▼ 23.2% | 43rd of 44 |
| Data processing and hosting jobs (2019 → 2025) | 1,996 | 4,475 | ▲ 124.2% | 2nd of 46 |
| Unemployment rate (Feb 2020 → Aug 2026) | 3.8% | 5.1% | ▲ 1.3pts | — |
| Residential price, ¢/kWh (YTD Jul 2025 → 2026) | 30.29¢ | 27.97¢ | ▼ 7.7% | 51st of 51 |
| Generation fleet → planned additions | 11.0 GW operating | 0.6 GW planned | 6% of fleet | 42nd of 51 |
Where Connecticut ranks among 51
1st = the most. Ranks cover every state and DC that publishes the figure.
Among its neighbors, Connecticut leads on data processing and hosting jobs, 2019 to 2025 (+124.2%), ahead of New York (+46.5%).
County spotlight
Fairfield County holds the most data centers on record in Connecticut (16). The largest share of planned generation sits in Middlesex County: 275 MW, led by Lighthouse Middletown, LLC (battery storage).
Where Connecticut sits in the power system
- Grid operator
- ISO-NE
- Operating capacity
- 11.0 GW
- Planned generation
- 625 MW
- Under construction or built
- 97 MW
- Data centers identified
- 33
- Data center load in queues
- —
- Unemployment, Aug 2026
- 5.1%
- Residential price change
- -7.7%
Neighboring states are shaded. Select one to open its page.
Connecticut, county by county
8 counties in Connecticut. Planned generation sits in 4 of them, data centers stand in 4, and local measures are on record in 0. Pick a layer, then select a county for its full record.
County leaders
Too few counties disclose contractor jobs.
Counties on record 6
| County | Data centers | Planned MW | Building MW | Lead developer | Electrical contractor jobs | Change 2019–25 | Local measures | Watchlist | |
|---|---|---|---|---|---|---|---|---|---|
| Fairfield County | 16 | — | — | — | — | — | — | — | |
| New Haven County | 8 | — | — | — | — | — | — | — | |
| Hartford County | 6 | 206 MW | 2 MW | Broadleaf Solar, LLC | — | — | — | 1 | |
| New London County | 2 | 5 MW | 5 MW | NJR Clean Energy Ventures Corporation | — | — | — | — | |
| Middlesex County | — | 275 MW | — | Lighthouse Middletown, LLC | — | — | — | — | |
| Windham County | — | 139 MW | 90 MW | Pure Hedge LLC | — | — | — | — |
Cities and towns on record 18
| City or town | County | Data centers | Local measures | Watchlist | Latest record | |
|---|---|---|---|---|---|---|
| Stamford | — | 9 | — | — | — | |
| Hartford | — | 3 | — | — | — | |
| Norwalk | — | 3 | — | — | — | |
| New Haven | — | 2 | 1 (1 in force) | 1 | Proposed local moratorium on data centers In force | |
| Shelton | — | 2 | — | — | — | |
| Waterbury | — | 2 | — | — | — | |
| Trumbull | — | 1 | 1 (1 in force) | — | Local moratorium on data centers through September 9, 2028 In force | |
| West Haven | — | 1 | 1 (1 in force) | — | City moratorium on data centers through June 8, 2027 In force | |
| Bristol | — | 1 | — | — | — | |
| Colchester | New London County | 1 | — | — | — | |
| East Hartford | Hartford County | 1 | — | — | — | |
| Glastonbury Center | Hartford County | 1 | — | — | — | |
| New London | — | 1 | — | — | — | |
| Southbury | — | 1 | — | — | — | |
| Groton | — | — | 1 (1 in force) | — | Permanent zoning cap replacing 2022 moratorium In force | |
| Morris | — | — | 1 (1 in force) | — | Local moratorium on data centers through May 20, 2028 In force | |
| New Haven Board of Alders | — | — | 1 (1 in force) | — | Twelve-month data center moratorium In force | |
| Waterford | New London County | — | — | 1 | NE Edge Waterford / East Lyme |
Data center counts come from every facility on the SAVRN Data Center Map, counted in the county and the city or community where each building physically stands (Census boundaries), not its mailing address. Jurisdictions appear as the Moratorium Tracker records them.
Connecticut, from generation to the household bill
1Grid operator
- Data center projects in forecast framework
- 2 projects
2Generation pipeline
- Operating capacity
- 11.0 GW
- Planned, all types
- 625 MW
- Under construction or built
- 97 MW
- Planned gas
- 0 MW
- Planned retirements 2026–30
- 8 MW
- Net firm additions derived
- 89 MW
3Data center demand
- Data centers identified
- 33
- Operators
- 14
- Load in tracked queues
- —
- Utility large-load projects
- 0
- Commercial sales, YTD change
- +0.7%
- Industry share of state GDP
- 1.5%
4Jobs and pay
- Unemployment, Aug 2026
- 5.1% (+1.0 pts y/y)
- Construction jobs vs 2019
- +11.2%
- Manufacturing jobs vs 2019
- -3.1%
- Electrical contractor jobs 2019–25
- +9.7%
- Electrician median pay
- $77,540
- Electrician ÷ cashier pay
- 2.18×
5Household bill
- Residential price, YTD Jul 2026
- 27.97¢/kWh
- Change vs YTD 2025
- -7.7%
- All-sector price change
- -7.0%
- Total retail sales change
- +0.4%
6Policy friction
- State measures on record
- 3
- Local measures (in force)
- 6 (6)
- Watchlist projects
- 3
- Lawsuits tracked
- 0
- Announced capital, disclosed
- —
- Dedicated tax incentive
- Yes
Planned power plants in Connecticut
Every planned generator in Connecticut in the August 2026 EIA-860M inventory, by technology, then the 15 largest units. Under construction or built covers status codes U, V and TS.
| Technology | Units | Planned MW | Under construction or built |
|---|---|---|---|
| Battery storage | 3 | 340 MW | 20 MW |
| Solar | 6 | 285 MW | 77 MW |
Largest planned generators
| Plant | County | Technology | MW | Status | Year | Owner |
|---|---|---|---|---|---|---|
| Elevate Middletown | Middlesex | Batteries | 275 MW | Planned, approvals not started | 2027 | Lighthouse Middletown, LLC |
| Broadleaf Solar | Hartford | Solar Photovoltaic | 200 MW | Approvals pending | 2028 | Broadleaf Solar, LLC |
| Pure Hedge LLC | Windham | Solar Photovoltaic | 70 MW | Under construction (≤50%) | 2027 | Pure Hedge LLC |
| KCE CT 1, LLC | Windham | Batteries | 45 MW | Planned, approvals not started | 2031 | Key Capture Energy |
| Pure Hedge LLC | Windham | Batteries | 20 MW | Under construction (≤50%) | 2027 | Pure Hedge LLC |
| Groton Flanders Road Landfill | New London | Solar Photovoltaic | 5 MW | Under construction (≤50%) | 2027 | NJR Clean Energy Ventures Corporation |
| Putnam Meadow Solar Station | Windham | Solar Photovoltaic | 4 MW | Approvals pending | 2027 | Putnam Meadow Solar Station, LLC |
| CT Airport Authority Solar One | Hartford | Solar Photovoltaic | 4 MW | Planned, approvals not started | 2027 | CAA CT Solar One, LLC |
| Windsor Locks | Hartford | Solar Photovoltaic | 2 MW | Under construction (≤50%) | 2026 | ENGIE Distributed Renewables Development LLC |
What the Connecticut build-out runs on
Who is building generation in Connecticut, which manufacturers and contractors have a plant, expansion or contract recorded here, and how long the critical equipment takes to arrive.
Developers and owners with planned generation
| Developer or owner | Units | Planned MW | Building MW | Main technology | Counties |
|---|---|---|---|---|---|
| Lighthouse Middletown, LLC | 1 | 275 MW | — | Battery storage | 1 |
| Broadleaf Solar, LLC | 1 | 200 MW | — | Solar | 1 |
| Pure Hedge LLC | 2 | 90 MW | 90 MW | Battery storage | 1 |
| Key Capture Energy | 1 | 45 MW | — | Battery storage | 1 |
| NJR Clean Energy Ventures Corporation | 1 | 5 MW | 5 MW | Solar | 1 |
| CAA CT Solar One, LLC | 1 | 4 MW | — | Solar | 1 |
| Putnam Meadow Solar Station, LLC | 1 | 4 MW | — | Solar | 1 |
| ENGIE Distributed Renewables Development LLC | 1 | 2 MW | 2 MW | Solar | 1 |
Manufacturers and contractors with a recorded Connecticut footprint
No plant, expansion or contract in the manufacturer record names Connecticut. The national suppliers below serve every state.
Order-by check derived
2 of the 2 planned units of 50 MW or more in Connecticut that are not yet under construction (475 of 475 MW) are past the date their step-up transformer had to be ordered to meet the planned in-service date. These units hold their schedules only if the equipment is already on order.
| Plant | Technology | MW | Planned in service | Transformer order-by | Turbine order-by | Owner |
|---|---|---|---|---|---|---|
| Elevate Middletown | Battery storage | 275 MW | Dec 2027 | Nov 2024 | — | Lighthouse Middletown, LLC |
| Broadleaf Solar | Solar | 200 MW | Apr 2028 | Mar 2025 | — | Broadleaf Solar, LLC |
Lead times, OEM backlogs and the national generation and grid contractors are on the national supply chain section.
Data center and large-load demand in Connecticut
33 data centers run by 14 operators are identified in Connecticut. The full list by city is on the Connecticut Data Center Map page. Utilities report 0 large customer projects here to EEI.
No large customer projects reported to EEI for this state.
The Connecticut jobs report, and who the build-out employs
Payroll employment, August 2026 (preliminary)
| Industry | Jobs | Change vs Aug 2025 | Change vs Aug 2019 |
|---|---|---|---|
| Total nonfarm | 1,730.5k | ▲ 0.9% | ▲ 2.2% (+36.9k) |
| Construction | 66.5k | ▲ 3.7% | ▲ 11.2% (+6.7k) |
| Manufacturing | 156.6k | ▲ 3.0% | ▼ 3.1% (-5.1k) |
| Mining and logging | 0.5k | ● 0.0% | ▼ 16.7% (-0.1k) |
| Retail trade | 164.1k | ▼ 0.2% | ▼ 5.8% (-10.1k) |
Power and data industries, 2019 to 2025
| Industry | Jobs 2019 | Jobs 2025 | Change | Average pay 2025 |
|---|---|---|---|---|
| Data processing and hosting | 1,996 | 4,475 | ▲ 124.2% | $203,642 |
| Electrical contractors | 9,284 | 10,187 | ▲ 9.7% | $87,401 |
| Power and communication line construction | 1,672 | 1,284 | ▼ 23.2% | $132,129 |
| Electric power generation, transmission, distribution | — | 3,778 | — | $177,857 |
| Transformer manufacturing | — | not disclosed | — | — |
Pay ladder, May 2025
| Occupation | Employment | Median annual pay | Multiple of cashier pay |
|---|---|---|---|
| Cashiers | 30,920 | $35,550 | 1.00× |
| Fast food and counter workers | 35,720 | $35,380 | 1.00× |
| Retail salespersons | 42,410 | $36,490 | 1.03× |
| All occupations | 1,696,170 | $59,690 | 1.68× |
| Construction laborers | 7,360 | $58,290 | 1.64× |
| Welders | 1,790 | $64,880 | 1.83× |
| HVAC mechanics | 3,800 | $76,610 | 2.15× |
| Plumbers and pipefitters | 5,410 | $77,280 | 2.17× |
| Electricians | 7,710 | $77,540 | 2.18× |
| Power plant operators | 250 | $97,460 | 2.74× |
| Power-line installers | 940 | $126,850 | 3.57× |
| Construction supervisors | 6,980 | $92,260 | 2.60× |
| Electrical engineers | 2,930 | $104,160 | 2.93× |
County-level contractor jobs and pay are in the county record above.
What the data center industry adds to Connecticut
PwC figures are modeled estimates commissioned by the industry.
The rules and the pipeline in Connecticut
State measures 3
| Bill | Measure | Status | Date | |
|---|---|---|---|---|
| SB 245 | Repeal of data center tax incentives | Failed / vetoed | 2026-05 | |
| SB 1292 | Connecticut enacted SB 1292, requiring AI data center owners and operators to submit quarterly reports to the Commissioner of Energy and Environmental | Failed / vetoed | 2025-01 | |
| SB 79 | AN ACT ELIMINATING THE TAX EXEMPTIONS FOR QUALIFIED DATA CENTERS. | Failed / vetoed | 2024-02 |
Delay Watchlist projects 3
| Project | Location | Status | Cause | MW | |
|---|---|---|---|---|---|
| NE Edge Waterford / East Lyme | Waterford / East Lyme | denied | 300 MW | ||
| Atlas Capital Group Bloomfield Data Center | Bloomfield (Hartford County) | pending review | — | ||
| New Haven Data Center Moratorium Proposal | New Haven | pending review | — |
Local moratoria and restrictions (6) appear by county and city in the county-by-county section. Counts include every status in the weekly tracker feeds as of October 5, 2026. The Connecticut Data Center Map page counts only active local pauses and delayed or blocked projects as of its September 2 rebuild, so its figures are lower. The difference is one of definition and date.
Connecticut's neighbors
Connecticut power, answered from the record
How much new power generation is planned in Connecticut?
EIA's August 2026 inventory lists 625 MW of planned generators in Connecticut, 97 MW of it under construction or built. By capacity the pipeline is battery storage 54%, solar 46%. The largest single unit is Elevate Middletown (275 MW, Lighthouse Middletown, LLC). Owners plan to retire 8 MW from 2026 to 2030.
Who runs the power grid in Connecticut?
ISO-NE serves most of Connecticut as the regional wholesale market and grid operator. No data center load is tracked in its queues yet.
Are electricity prices rising in Connecticut?
Residential electricity averaged 27.97¢/kWh from January to July 2026, -7.7% on a year earlier, one of the few jurisdictions where it fell. Commercial sales, the class that includes data centers, changed +0.7%.
Is planned generation in Connecticut on schedule?
2 of 2 planned units of 50 MW or more not yet under construction are past the latest date to order a step-up transformer (more than 160 weeks) for their planned in-service date. They hold schedule only if equipment is already on order.
What do electricians earn in Connecticut?
The median electrician in Connecticut earned $77,540 in May 2025, 2.18 times the median cashier, and power-line installers earned $126,850 (BLS OEWS).
Which counties in Connecticut have the most planned generation?
By planned nameplate capacity: Middlesex County (275 MW), Hartford County (206 MW), Windham County (139 MW).
Which data center projects are delayed in Connecticut?
The SAVRN Delay Watchlist names 3 projects in Connecticut, among them NE Edge Waterford / East Lyme (300 MW), Atlas Capital Group Bloomfield Data Center, New Haven Data Center Moratorium Proposal.
Does Connecticut have a data center moratorium?
The SAVRN Moratorium Tracker holds 3 state-level measures (0 enacted) and 6 local moratoria or restrictions in Connecticut, 6 of them in force, 36th most in the country.
Connecticut across the SAVRN trackers
Sources for this page
- BEA state GDP via FRED
- BLS LAUS
- BLS OEWS
- BLS QCEW
- BLS State Employment (CES)
- EEI large customer projects
- EIA Electric Power Monthly
- EIA-860M (Aug 2026)
- NCSL
- PwC for the Data Center Coalition
- SAVRN Capital Atlas
- SAVRN Data Center Map
- SAVRN Delay Watchlist
- SAVRN Grid Operator Watchlist
- SAVRN Moratorium Tracker
- U.S. Census Bureau cartographic boundaries (via us-atlas)
Every figure links to its original source through the Sources buttons. Values marked derived are calculated from reported figures.