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Preliminary 2025 facility recordOperating

Mount Holly, NC · EIA plant 2728

Mountain Island

Mountain Island is a hydro power facility in Mount Holly, NC, with 60 MW of operating capacity.

Open on mapView NC profileOpen EIA source
Operating capacity60 MW4 operating generators
Proposed capacity0 MW0 proposed generators
UtilityDuke Energy Carolinas, LLCEIA-reported operator
Balancing authorityDUKDuke Energy Carolinas

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Hydro60 MW
ProposedNo proposed capacity reported
Reported technologiesConventional Hydroelectric

Nearby in NC

Related facilities

NC · 2.8 miReventure Park4 MW →NC · 4.4 miHornet Solar73 MW →NC · 4.8 miMcDowell Creek Solar LLC2 MW →NC · 6.3 miMariposa Solar Center LLC5 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