HL Power

Waste power plant in California, United States of America. Approximate location 40.3683, -120.2648.

WasteCaliforniaUnited States of America

HL Power is a 36 MW waste power plant in California, United States of America. It is operated by HL Power Company. Based on reported annual generation of 189 GWh, it can supply roughly 54k homes. It ranks #4112 of 10,938 United States of America power plants by installed capacity. Commissioned in 1989, it is around 37 years old — long-established. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

36Source-backed capacity
189GWh reported / yr
54,000homes powered
1989commissioned (~37 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0010777.

Data status

Known data

FacilityHL Power WRI
CountryUnited States of America · California WRI
Coordinates40.3683, -120.2648 WRI
FuelWaste WRI
MW installed capacity36 MW WRI source record; scope not independently normalised
OwnerHL Power Company WRI
Commissioned1989 WRI
GWh reported / yr189 GWh/yr WRI

Calculated from dataset

Capacity rank in country#4112 of 10938 calculated
Fuel-specific rank in country#91 of 551 calculated
Capacity vs country/fuel peers5.48× · 7 MW median · 551 peers calculated
Homes-powered equivalent54,000 calculated from reported generation
Climate9.9°C · HDD 3,104 derived from coordinates
Environmental severityC2 · 28/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsNot available not in dataset

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: GEM tracker 2026 (location L100000813371); fuel: WRI source-record fuel

In context: how this plant compares

At 36 MW, HL Power is well above the median waste plant in United States of America (7 MW). Waste-to-energy plants burn municipal solid waste to generate electricity and heat, cutting landfill volume while recovering energy from residual waste.

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

Reported generation trend

2013: 201 GWh20132014: 187 GWh20142015: 195 GWh20152016: 118 GWh20162017: 161 GWh20172018: 191 GWh20182019: 189 GWh2019201 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by HL Power Company.

Local climate & thermal context

This waste plant recovers energy by combusting municipal or industrial waste. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 40.4°N — which shapes how much energy it can produce and how its output varies through the year.

9.9°Cannual mean temp
3,104heating degree-days (base 18°C)
166cooling degree-days (base 18°C)
1,221 melevation

Monthly mean temperature

J: 0 °CJF: 2 °CFM: 6 °CMA: 8 °CAM: 13 °CMJ: 17 °CJJ: 21 °CJA: 20 °CAS: 16 °CSO: 11 °CON: 4 °CND: 0 °CD21 °C

Heating degree-days here run 26% above 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: 65/100 — this site sits in the mid 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
28/100environmental-severity index
21.1°Cseasonal temperature swing
304 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 #91 largest waste power plant of 551 in United States of America by capacity.

United States of America has 551 waste power plants in this dataset, together about 10,154 MW of capacity.

Nearby power plants

Location

Coordinates 40.3683, -120.2648 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is HL Power?

HL Power is a 36 MW source-record waste power plant in California, United States of America, commissioned in 1989.

How much electricity does HL Power generate?

HL Power generates about 189 GWh of electricity per year.

How many homes can HL Power power?

Its output is enough to supply roughly 54,000 homes.

Who operates HL Power?

HL Power is operated by HL Power Company.

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