The GSI Group LLC at Assumption
The GSI Group LLC at Assumption is a 2 MW solar farm in Christian County, Illinois, operated by Luminace Solar Illinois 2, LLC. EIA-860M lists 1 generating unit here, inside MISO. Its unit entered service in 2021.
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
- 1.5 MW
- 1.5 MW net summer
- Generating units
- 1
- In service
- 2021
- EIA plant ID
- 63968
Where it is
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- County
- Christian County, Illinois
- Coordinates
- 39.513, -89.0373
- Balancing authority
- MISO
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Luminace Solar Illinois 2, LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
The GSI Group LLC at Assumption: FAQ
- Where is The GSI Group LLC at Assumption?
- In Christian 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 The GSI Group LLC at Assumption?
- 2 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns The GSI Group LLC at Assumption?
- EIA-860M names Luminace Solar Illinois 2, LLC 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 The GSI Group LLC at Assumption LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Luminace Solar Illinois 2, LLC 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 "The GSI Group LLC at Assumption LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is The GSI Group LLC at Assumption still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.