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Preliminary 2025 facility recordOperating

Middletown, CT · EIA plant 56798

Kleen Energy Systems

Kleen Energy Systems is a oil & gas power facility in Middletown, CT, with 693 MW of operating capacity.

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Operating capacity693 MW3 operating generators
Proposed capacity0 MW0 proposed generators
UtilityKleen Energy Systems, LLCEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas693 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combined Cycle

Nearby in CT

Related facilities

CT · 0.9 miMiddletown786 MW →CT · 1.0 miElevate Middletown275 MW →CT · 1.0 miGenConn Middletown LLC242 MW →CT · 3.0 miWesleyan University Cogen 12 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source