The GSI Group LLC at Assumption
1004 E Illinois St, Assumption, IL 62510Plant Summary Information
The GSI Group LLC at Assumption is ranked #256 out of 366 solar farms in Illinois in terms of total annual net electricity generation.
The GSI Group LLC at Assumption generated 420.0 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | The GSI Group LLC at Assumption |
|---|---|
| Utility Name | Luminace Solar Illinois 2, LLC |
| Location | Christian County, IL |
| Initial Operation Date | January 2021 |
| Last Update | Dec 2025 |
| Annual Generation | 2.5 GWh |
| Annual Consumption | 8.8 k MMBtu |
| Ranked #10,448 out of 13,301 Power Plants Nationwide | |
| Ranked #5,368 out of 7,209 Solar Power Plants Nationwide | |
| Ranked #396 out of 542 Illinois Power Plants | |
| Ranked #256 out of 366 Illinois Solar Power Plants | |
| Fuel Types | Solar |
| Previous Operator |
Constellation Solar Illinois 2, LLC (2020 to 2021) Luminace Solar Illinois 2, LLC (2022 to 2025) |
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Monthly Net Generation for The GSI Group LLC at Assumption
Monthly Plant Fuel Consumption for The GSI Group LLC at Assumption
The GSI Group LLC at Assumption Details
| Summary Information | |
|---|---|
| Plant Name | The GSI Group LLC at Assumption (63968) |
| Plant Address | 1004 E Illinois St, Assumption, IL 62510 |
| Utility | Luminace Solar Illinois 2, LLC (63511) |
| Latitude, Longitude | 39.51303, -89.03734 |
| Generation Dates on File | Jan 2021 to Dec 2025 |
| Initial Operation Date | January 2021 |
| Annual Generation | 2.5 GWh |
| Fuel Types | Solar |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | SERC |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | |
| Ash Impoundment | |
| Transmission / Distribution Owner | Ameren Illinois Company (56697) IL |
| Grid Voltage | 12.47 kV |
| Energy Storage | No |
Generator GSI Details Operating January 2021
| Technology | Solar Photovoltaic |
|---|---|
| Prime Mover | Photovoltaic |
| Ownership | Single Owner |
| Nameplate Capacity | 1.5 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 1.5 MW |
| Winter Capacity | 1.5 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | January 2021 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Solar |
| Solar Details | |
| Single Axis Tracking | Yes |
|---|---|
| Azimuth Angle | 180 |
| DC Net Capacity | 2 MW |
| Crystalline Silicon | Yes |
| Net Metering Agreement | Yes |
| Net Metering DC Capacity | 1.5 MW |
| Virtual Net Metering Agreement | No |
The GSI Group LLC at Assumption Plant Owners
| Owner Name | Address | Ownership | We couldn't locate any owners for this plant |
|---|
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Nearby Power Plants
Below are closest 20 power plants surrounding The GSI Group LLC at Assumption.
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|---|---|---|---|
| Altamont | Altamont, IL | 75.0 MWh | 34.2 mi |
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| Skyline | Taylorville, IL | 7.8 GWh | 12.9 mi |
| Sullivan (IL) | Sullivan, IL | 574.0 MWh | 23.4 mi |
| Whitney Hill Wind Power LLC | Mt.Pulaski, IL | 145.1 GWh | 29.9 mi |