OCSD

Storage power plant in California, United States of America. Approximate location 33.6931, -117.9409.

StorageCaliforniaUnited States of America

OCSD is a 5 MW storage power plant in California, United States of America. It is operated by Advanced Microgrid Solutions. Based on its capacity (estimated), it can supply roughly 1.2k homes (estimated). It ranks #7244 of 10,938 United States of America power plants by installed capacity. Commissioned in 2019, it is around 7 years old — recently built. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

5Source-backed capacity
1,226homes powered (est.)
2019commissioned (~7 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0063616.

Data status

Known data

FacilityOCSD WRI
CountryUnited States of America · California WRI
Coordinates33.6931, -117.9409 WRI
FuelStorage WRI
MW installed capacity5 MW WRI source record; scope not independently normalised
OwnerAdvanced Microgrid Solutions WRI
Commissioned2019 WRI

Calculated from dataset

Capacity rank in country#7244 of 10938 calculated
Fuel-specific rank in country#45 of 104 calculated
Capacity vs country/fuel peers1.23× · 4 MW median · 104 peers calculated
Homes-powered equivalent1,226 calculated
Climate17.0°C · HDD 750 derived from coordinates
Environmental severityC4 · 39/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 5 MW, OCSD is well above the median storage plant in United States of America (4 MW). This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest storage plants in United States of America

AES LAWAI SOLAR Hybrid: 40 MW40AES LAWAI …Battery Energy Storage System: 40 MW40Battery En…Vista Energy Storage System: 40 MW40Vista Ener…Grand Ridge Battery Projects: 33 MW33Grand Ridg…Beech Ridge Energy Storage: 32 MW32Beech Ridg…Blue Summit Storage LLC: 30 MW30Blue Summi…Escondido Energy Storage: 30 MW30Escondido …Beacon BESS 1: 20 MW20Beacon BES…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Advanced Microgrid Solutions. All plants by this company →

Local climate & thermal context

This storage plant stores and releases electricity (pumped-hydro or batteries) to balance the grid. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 33.7°N — which shapes how much energy it can produce and how its output varies through the year.

17.0°Cannual mean temp
750heating degree-days (base 18°C)
394cooling degree-days (base 18°C)
130 melevation

Monthly mean temperature

J: 13 °CJF: 14 °CFM: 14 °CMA: 16 °CAM: 17 °CMJ: 19 °CJJ: 21 °CJA: 22 °CAS: 21 °CSO: 19 °CON: 16 °CND: 13 °CD22 °C

Heating degree-days here run 69% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 24/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
39/100environmental-severity index
9.1°Cseasonal temperature swing
27 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #45 largest storage power plant of 104 in United States of America by capacity.

United States of America has 104 storage power plants in this dataset, together about 815 MW of capacity.

Nearby power plants

Location

Coordinates 33.6931, -117.9409 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is OCSD?

OCSD is a 5 MW source-record storage power plant in California, United States of America, commissioned in 2019.

How many homes can OCSD power?

Its output is enough to supply roughly 1,226 homes (estimated).

Who operates OCSD?

OCSD is operated by Advanced Microgrid Solutions.

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