Marvin Composites

Marvin Composites is a 3 MW natural gas power plant in Cass County, North Dakota, operated by Marvin Composites. EIA-860M lists 4 generating units here, inside MISO. Its units entered service between 1996 and 2024.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity
2.5 MW
2.5 MW net summer
Generating units
4
In service
1996–2024
EIA plant ID
69583

Where it is

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County
Cass County, North Dakota
Coordinates
46.8993, -96.8595
Balancing authority
MISO
Sector
Industrial Non-CHP

Units, technology and status

Operator of record
Marvin Composites
Primary energy source
Natural gas
Technologies
Natural Gas Internal Combustion Engine, Petroleum Liquids
Status
Standby/Backup

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 2 MW, Petroleum 1 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Marvin Composites reports to EIA →

Marvin Composites: FAQ

Where is Marvin Composites?
In Cass County, North Dakota (ND). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Marvin Composites?
3 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Marvin Composites?
EIA-860M names Marvin Composites as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Marvin Composites LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Marvin Composites here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Marvin Composites LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Marvin Composites still running?
EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.