Demille Solar Farm
Solar power plant in Lapeer County, Michigan. 28.4 MW of nameplate capacity across 1 generator, operated by DTE Electric Company.
Also known as DTE Energy Lapeer Solar Park - Demille Array · EIA plant 60346
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 28.4 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- May 2017First generator online
- Operator
- DTE Electric CompanyEIA operator ID 5109
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Lapeer County, MI43.0400, −83.3333
- EIA plant ID
- 60346EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Demille Solar Farm produces
Free · EIA-923Net generation, 2025
35.8 GWh
35,810 MWh, final
Capacity factor, 2025
14.4%
2024: 14.1%
January to July 2026
22.8 GWh
Provisional
Range, 2018 to 2025
35.2–43.3
GWh a year. Low 2024, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | 25,128 | Not reported | 8 of 12 |
| 2018 | 39,897 | 16.0% | 12 of 12 |
| 2019 | 41,485 | 16.7% | 12 of 12 |
| 2020 | 43,346 | 17.4% | 12 of 12 |
| 2021 | 39,683 | 16.0% | 12 of 12 |
| 2022 | 37,964 | 15.3% | 12 of 12 |
| 2023 | 35,486 | 14.3% | 12 of 12 |
| 2024 | 35,181 | 14.1% | 12 of 12 |
| 2025 | 35,810 | 14.4% | 12 of 12 |
| 2026 (provisional, partial year) | 22,770 | 15.8% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Solar Photovoltaic | 28.4 | May 2017 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists DTE Electric Company as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Demille Solar Farm
More plants operated by DTE Electric Company
Questions about Demille Solar Farm
How much power does Demille Solar Farm produce?
Demille Solar Farm reported 35,810 MWh (35.8 GWh) of net generation in 2025, a 14.4% capacity factor on 28.4 MW of nameplate capacity. From January to July 2026 it reported 22.8 GWh, which is provisional.
Where is Demille Solar Farm?
Demille Solar Farm is in Lapeer County, Michigan, at 43.0400, −83.3333. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Demille Solar Farm?
EIA-860M for August 2026 lists DTE Electric Company as the operator (EIA operator ID 5109). The operator is not always the owner.
When did Demille Solar Farm start operating?
Its first generator began operating in May 2017, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page