Silver State South Storage
NextEra Energy Resources, LLCClark County
Silver State South Storage is a battery energy storage facility with 200 MW of EIA-reported operating capacity and 800 MWh of reported energy capacity in Clark County, Nevada, registered as EIA Plant ID 67734. Silver State South Storage, LLC is the registered plant entity or operator. The facility interconnects at Primm 220 kV Substation at 220 kV. Its grid role is four-hour lithium-ion battery energy-storage resource contracted for SCE mid-term reliability procurement.
Mapped infrastructure geometry associated with this asset.
Batteries
4-hour storage duration
Silver State South Storage is operating.
220 kV · Southern California Edison Company (SCE)
EIA plant 67734 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| SSSB | Batteries | Operating | 200 | 800 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| SSSB | 200 MW 200 MW summer | Batteries BA | Apr 2025 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
First Solar completed the sale of the 250 MW AC Silver State South Solar Project to a subsidiary of NextEra Energy Resources. Transaction terms were not disclosed; the cited release does not identify a separate sale of the storage facility.
CAISO
CAISO · Clark County
EIA-923 reports gross generation and net grid exchange for storage plants. Gross generation is shown as a discharge proxy; it is not a cycle count or conventional capacity factor.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Southern California Edison and the seller executed an initial option contract for the Silver State South Storage project, with an expected initial delivery date of June 1, 2024.
SCE filed for approval of an amended and restated storage contract after interconnection-facilities work delayed the project beyond its original 2024 delivery target.
The California Public Utilities Commission approved SCE's 200 MW amended and restated Mid-Term Reliability contract with Silver State South Storage, LLC. Expected delivery was moved to June 1, 2025, under a 15-year RA-with-financial-settlement arrangement.
EIA-860 lists generator SSSB with this operating date.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Silver State South Storage reports 200 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Silver State South Storage is a batteries facility in Clark County, NV, participating in the CAISO market.
Silver State South Storage is in Clark County, NV, inside the CAISO balancing area.
Silver State South Storage is operated by Silver State South Storage, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Silver State South Storage reported 281.7 GWh over the twelve months to 2026-07. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
Silver State South Storage interconnects at Primm 220 kV Substation, on the Southern California Edison Company (SCE) system.
By capacity, Silver State South Storage ranks #58 of 1,061 operating plants of the same technology nationally. It ranks #5 of 15 in NV.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.