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450 MW Batteries (125 MW) + Solar Photovoltaic (325 MW) operating in Pueblo, CO — Public Service Company of Colorado
450 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
38.3303, -104.4142
County
Pueblo, CO
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Neptune Energy Center, LLC | NextEra Energy | — |
| Owner(s) | Neptune Energy Center, LLC | NextEra Energy | — |
| Status | Operating | operating | — |
The Neptune Energy Center Hybrid is a 450 MW hybrid power plant located in Pueblo County, Colorado. The plant, which began operating in 2023, is owned by NextEra Energy and operated by Neptune Energy Center, LLC. It utilizes both solar photovoltaic and battery storage technologies, with single-axis tracking for the solar panels. The battery energy storage system (BESS) has a capacity of 500 MWh and a duration of 4 hours, employing lithium-ion battery chemistry (LIB).
The plant's primary fuel source is electricity (MWH). In its latest year of operation, the Neptune Energy Center generated 679,256 MWh, achieving a capacity factor of 17.2%. The facility consists of two generators and operates within the Public Service Company of Colorado balancing authority, under the Western Electricity Coordinating Council (WECC) NERC region. According to available data, the Neptune Energy Center Hybrid is ranked as the second largest of four hybrid plants in Colorado, and 77th out of 514 nationally. Financial data is available for the plant from LBNL Solar.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Public Service Company of Colorado (PSCO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
31.9K MWh
Latest Month
679.3K MWh
Annual Generation
17.2%
Capacity Factor
Data from 2023–2024
$15.6/MWh
Energy Value
$20.2/MWh
Capacity Value
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-04-19
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