# Moraine Sands Wind Power

MISO asset profile · https://askthegrid.com/assets/facilities/moraine-sands-wind-power

## Current generation inventory

EIA plant 66093 · Inventory reporting month: 2026-08.

- wind: 171 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T22:49:53.020309+00:00
- Filed coordinate (longitude, latitude): -89.89511, 40.170889
- OSM extract: 2026-10-09T20:21:04Z
- OSM mapped edit: 2025-12-21 17:04:51+00:00
- Map prepared: 2026-10-10T23:05:25.707063+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Moraine Sands Wind Power is a 171 MW onshore wind turbine plant in Mason County. Moraine Sands is a 171 MW onshore wind farm in Mason County, Illinois, made up of 38 Vestas V150 4.5 MW turbines. Mortenson was the engineering, procurement and construction contractor, with construction running from spring to December 2023. The project sells 100% of its power to Microsoft under a long-term agreement and secured a construction loan and tax equity commitment in July 2023.

## Reviewed metrics

- **Nameplate capacity:** 171 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 66093 — plant-66093

## Facts

- **Technology:** Onshore Wind Turbine
- **Operator:** Moraine Sands Wind Power, LLC

## Related parties

- **EPC contractor / construction contractor:** Mortenson — epc_contractor ([source](https://www.mortenson.com))
- **Equipment supplier:** Vestas — equipment_supplier ([source](https://www.vestas.com))
- **Offtaker:** Microsoft — offtaker ([source](https://www.microsoft.com))

## Sources

- [mortenson.com](https://mortenson.com/projects/moraine-sands-wind-project) — mortenson.com · public_source — Source retained for exact-record publication review.
- [patternenergy.com](https://patternenergy.com/projects/moraine-sands-wind/) — patternenergy.com · public_source — Source retained for exact-record publication review.
- [lw.com](https://www.lw.com/en/news/2023/07/latham-watkins-advises-cordelio-power-in-the-financing-of-the-moraine-sands-wind-project) — lw.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/moraine-sands-wind-power

Source: Ask the Grid — https://askthegrid.com/