Gardiner

Power plant · Hydro

Key facts

Power plant · Hydro Operating

Commissioned: 1985
Net generation, 2025: 3,157 MWh
Grid: 12 kV to Central Maine Power Co (ISNE)
Location: Kennebec County, Maine
Operated by: KEI (Maine) Power Management (III) LLCSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Net generation MWh by year, 2001 to 2025

No companies named in filings yet.

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All 5 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Grid	Nerc region NPCC Report year 2025 Grid voltage kv 12 Transmission owner Central Maine Power Co Balancing authority code ISNE Balancing authority name ISO New England Inc.
Fuel burned (MMBtu), 2025	10,771
Capacity factor, 2025	0.360
Net generation (MWh), 2025	3,157
Balancing authority code	ISNE

3 sources

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
EIA-860M Preliminary Monthly Electric Generator Inventory

Projects within 15 mi, nearest first.
Project	Kind	Away	MW
Dynamic - Wales Pond Road Postponed	Solar	14.4 mi	4.9

Sources