# Diamond Spring, LLC

SPP asset profile · https://askthegrid.com/assets/facilities/diamond-spring-llc

## Current generation inventory

EIA plant 63327 · Inventory reporting month: 2026-08.

- wind: 303.5 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: 2026-10-10T02:12:40.665346+00:00
- Filed coordinate (longitude, latitude): -96.78046, 34.487369
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2026-05-22 06:20:21+00:00
- Map prepared: 2026-10-10T02:28:19.789710+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

Diamond Spring, LLC is a 303.5 MW onshore wind turbine plant in Johnston County. Diamond Spring is a roughly 303 MW wind site in south-central Oklahoma, developed 2019-20 and owned and operated by ALLETE Clean Energy. It uses 112 GE turbines rated 2.3 to 2.8 MW and began commercial operations in December 2020. Its output is contracted to Walmart, Starbucks and Smithfield Foods under 12 to 15 year power sales agreements.

## Reviewed metrics

- **Nameplate capacity:** 303.5 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 63327 — plant-63327

## Facts

- **Technology:** Onshore Wind Turbine
- **Operator:** ALLETE Clean Energy

## Related parties

- **Owner / operator / developer:** ALLETE Clean Energy — owner ([source](https://www.alletecleanenergy.com))
- **Offtaker:** Walmart — offtaker ([source](https://www.walmart.com))
- **Offtaker:** Starbucks — offtaker ([source](https://www.starbucks.com))
- **Offtaker:** Smithfield Foods — offtaker ([source](https://www.smithfieldfoods.com))
- **Transmission owner / interconnecting utility:** Oklahoma Gas and Electric — transmission_owner ([source](https://www.oge.com))

## Sources

- [dailyenergyinsider.com](https://dailyenergyinsider.com/news/20003-allete-clean-energy-selling-oklahoma-energy-output-to-smithfield-foods-others/) — dailyenergyinsider.com · public_source — Source retained for exact-record publication review.
- [offshoresource.com](https://offshoresource.com/business-wire/allete-clean-energy-begins-commercial-operations-at-diamond-spring-wind-site/) — offshoresource.com · public_source — Source retained for exact-record publication review.
- [alletecleanenergy.com](https://www.alletecleanenergy.com/EnergySites?site=ds) — alletecleanenergy.com · public_source — Source retained for exact-record publication review.
- [wind-watch.org](https://www.wind-watch.org/news/2019/02/08/apex-offering-chance-to-learn-about-proposed-wind-farm/) — wind-watch.org · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/diamond-spring-llc
Website: [ALLETE Clean Energy](https://www.alletecleanenergy.com)

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