Lake Road Generating Plant
Lake Road Generating Company, L.P.Windham County
Lake Road Generating Plant is an 840 MW natural-gas-fired combined-cycle generating facility located at 56 Alexander Parkway, Dayville, Killingly, Connecticut. The plant comprises three 280 MW single-shaft units (U1–U3), each equipped with an ABB GT24 combustion-turbine generator, heat-recovery steam generator, and condensing steam-turbine generator. The plant is interconnected at the adjacent Lake Road 345 kV substation through a loop connection to the existing Card Street–Sherman Road 345 kV transmission line (Circuit 347). The facility uses air-cooled condensers to reduce local water demand and was constructed with approximately 800 union jobs over three years.
Mapped infrastructure geometry associated with this asset.
EIA plant 55149 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| U1 | Natural Gas Fired Combined Cycle | Operating | 280 | Unknown |
| U2 | Natural Gas Fired Combined Cycle | Operating | 280 | Unknown |
| U3 | Natural Gas Fired Combined Cycle | Operating | 280 | Unknown |
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| U1 | 280 MW 278 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CS | Mar 2002 | Operating |
| U2 | 280 MW 277.9 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CS | Mar 2002 | Operating |
| U3 | 280 MW 272.9 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CS | May 2002 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
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Project milestones and public references behind the asset profile.
The Connecticut Siting Council approved the Lake Road Generating Company application for construction, operation, and maintenance of a 792 MW natural-gas-fired combined-cycle facility in Docket No. 189. The approval imposed pre-construction development-management-plan approval and pre-operation operations-plan approval conditions.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA-860 lists generator U1, generator U2 with this operating date.
EIA-860 lists generator U3 with this operating date.
PG&E National Energy Group announced that Lake Road Generating had begun commercial service and was selling wholesale power into the New England market. The plant was described as 840 MW.
Lake Road Trust Ltd., Lake Road Generating Company, L.P., and related holding entities filed with FERC for authorization to transfer jurisdictional facilities to the lenders, interest-hedge providers, and investors.
Lake Road Generating Company, L.P. entered into a $125 million long-term service contract with Alstom covering the plant's three GT24 gas turbines, including planned-maintenance parts, labor, technical advisors, and a turbine upgrade package.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Lake Road Generating Plant reports 840 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Lake Road Generating Plant is a Natural Gas Fired Combined Cycle facility in Windham County, CT, participating in the ISO-NE market.
Lake Road Generating Plant is in Windham County, CT, inside the ISO-NE balancing area.
Lake Road Generating Plant is operated by Lake Road Generating Co LP according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Lake Road Generating Plant reported 5,854.3 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, Lake Road Generating Plant ranks #131 of 540 operating plants of the same technology nationally. It ranks #2 of 11 in CT.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.