Nalco
Nalco is a 5 MW natural gas power plant in DuPage County, Illinois, operated by Nalco Co. EIA-860M lists 2 generating units here, inside PJM. Its units entered service in 1985.
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
- 4.7 MW
- 3.7 MW net summer
- Generating units
- 2
- In service
- 1985
- EIA plant ID
- 50326
Where it is
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- County
- DuPage County, Illinois
- Coordinates
- 41.8009, -88.1972
- Balancing authority
- PJM
- Sector
- Commercial CHP
Units, technology and status
- Operator of record
- Nalco Co
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating (1) · Out of service and NOT expected to return to service in next calendar year (1)
Nalco: FAQ
- Where is Nalco?
- In DuPage County, Illinois (IL). 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 Nalco?
- 5 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Nalco?
- EIA-860M names Nalco Co 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 Nalco LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Nalco Co 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 "Nalco LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Nalco still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.