Greater Sandhill I — Plant Summary
- EIA Plant ID
- 57377
- Capacity
- 19 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Alamosa, CO
- Operating Since
- 2010
- Generators
- 2
- Operator
- Greater Sandhill I LLC
- Parent Company
- —
- Annual Generation
- 43,350 MWh
- Capacity Factor
- 26.1%
- Balancing Authority
- Public Service Company of Colorado
- ISO/RTO
- —
- NERC Region
- WECC
Greater Sandhill I
OperatingSolar
Ranked #30 of 180 Solar plants in CO#1797 of 7447 nationally
19 MW Solar operating in Alamosa, CO — Public Service Company of Colorado
EIAGEMWD
19 MW
Nameplate Capacity
2
Generators
units
Solar Photovoltaic
Technology
2010
Operating Since
Location
Coordinates
37.6855, -105.8909
County
Alamosa, CO
Nearby Plants
- SunE AlamosaSolar8.2 MW · 1.1 km
- San Luis Valley Solar RanchSolar35 MW · 3.4 km
- Hooper SolarSolar52 MW · 8.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Greater Sandhill I LLC | Greater Sandhill I | — |
| Owner(s) | Greater Sandhill I LLC | — | — |
| Status | Operating | operating | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Greater Sandhill Solar Plant is a 19 megawatt (MWAC) photovoltaic power station in the San Luis Valley, located near the town of Mosca, Colorado. It was the largest solar facility in the state when it came online at the end of 2010. The electricity is being sold to Public Service of Colorado, a subsidiary of Xcel Energy, under a long-term power purchase agreement.
Read more on WikipediaGreater Sandhill I is a 19 MW solar photovoltaic power plant located in Alamosa County, Colorado. The plant, which began operating in 2010, is owned and operated by Greater Sandhill I LLC. It utilizes single-axis tracking technology across its two solar generators. Greater Sandhill I ranks as the 27th largest power plant in Colorado out of 177, and 1596th nationally out of 7108. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is the Public Service Company of Colorado.
In its most recent year of operation, Greater Sandhill I generated 43,350 MWh of electricity, achieving a capacity factor of 26.1%. The plant has available financial data, including a reported power purchase agreement (PPA) price of $171.94 per MWh, according to data from Lawrence Berkeley National Laboratory (LBNL).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Public Service Company of Colorado
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
2.5K MWh
Latest Month
43.4K MWh
Annual Generation
26.1%
Capacity Factor
Jan 2021 – Dec 2023
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$130.7/MWh
LCOE (Levelized Cost)
$171.9/MWh
PPA Price
$15.4/MWh
Energy Value
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (5)Beta
Last updated 2026-03-26
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