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1.1 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Sampson, NC
1.1 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
35.0431, -78.5865
County
Sampson, NC
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | North Carolina El Member Corp | — | — |
| Owner(s) | North Carolina El Member Corp | — | — |
| Status | Operating | — | — |
South River H4 Solar Energy Storage is a hybrid solar and battery energy storage system located in Sampson County, North Carolina. The plant, owned and operated by North Carolina El Member Corp, began operating in 2023. It has a total capacity of 1.1 MW and consists of two generators utilizing both solar photovoltaic and battery technologies. The battery energy storage system (BESS) has a capacity of 1.1 MWh and a duration of 1.83 hours, employing lithium-ion battery chemistry (LIB). The solar array uses single-axis tracking.
The plant operates within the Duke Energy Progress East balancing authority and the SERC NERC region. In its latest year of operation, South River H4 generated 595 MWh, resulting in a capacity factor of 6.1%. The plant is ranked 34th out of 36 similar facilities in North Carolina and 1190th out of 1205 nationally. The plant's primary fuel source is listed as MWH, reflecting its reliance on stored energy.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Duke Energy Progress East (CPLE)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
33 MWh
Net Discharge
595 MWh
Annual Net Energy
6.1%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $1.5M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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