Following an Order Instituting Rulemaking initiated in October 2005, amendments adopted by the Energy Commission and approved by California's Office of Administrative Law in July 2007 created two articles: Article 1, known as Quarterly Fuel and Energy Report (QFER) directed at current California energy information, and Article 2 directed at the forecast and assessment of energy loads and resources. The regulations under QFER provide for the collection of energy data relating to electric generation, control area exchanges, and natural gas processing and deliveries. The reports are submitted on forms specified by the Energy Commission's executive director.

The statistics presented here are derived from the QFER CEC-1304 Power Plant Owner Reporting Form. The CEC-1304 reporting form collects data from power plants with a total nameplate capacity of 1MW or more that are located within California or within a control area with end users inside California. The information includes gross generation, net generation, fuel use by fuel type for each generator, as well as total electricity consumed on site and electricity sales for the plant as a whole. Power plants with nameplate capacity of 20 megawatts or more also provide environmental information related to water supply and water/wastewater discharge.

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Column Key for Annual Generation by Plant Unit

Year: Data covers 2001 through 2021.

Plant ID: The CEC Plant ID is a unique identifier used by the Cartography Unit to track power plants. The first letter is used as a broad classification:

  • G = Natural Gas
  • S = Solar
  • T = Geothermal
  • N = Nuclear
  • C = Coal
  • E = Biomass
  • H = Hydro
  • W = Wind

Plant Name: The name given for the plant by the company owner. May be different from other common references in use in other proceedings, hearings, etc.

Unit: The name given to track a specific generating unit within the power plant.

Energy Source:

Key Value Energy Source
AB Agriculture Crop Byproducts/Straw/Energy Crops
BFG Blast Furnace Gas
BIT Bituminous Coal
BLQ Black Liquor
COL Anthracite Coal
DFO Distillate Fuel Oil (includes all Diesel and No. 1, No. 2, and No. 4 Fuel Oils)
GAS Gasoline
GEO Geothermal
JF Jet Fuel
KER Kerosene
LFG Landfill Gas
LIG Lignite Coal
MSW Municipal Solid Waste
N/A Other, non-specified
NA Not Available
NG Natural Gas (Methane - Pipeline Weighted National Average w/ HHV 1,050 Btu/scf)
NUC Nuclear (Uranium, Plutonium, Thorium)
OBG Other Biomass Gases (Digester Gas, Methane, and other biomass gases)
OBL Other Biomass Liquid (Ethanol, Fish Oil, Liquid Acetonitrile Waste, Medical Waste, Tall Oil, Waste Alcohol, and other Biomass not specified)
OBS Other Biomass Solid (Animal Manure and Waste, Solid Byproducts, and other solid biomass not specified)
OG Other Gas (Butane, Coal Processes, Coke-Oven, Refinery, and other processes)
OGW Other gases, waste products
OIL Non-specified oil products, may include distillate fuel oil
OTH Other (Batteries, Chemicals, Coke Breeze, Hydrogen, Pitch, Sulfur, Tar Coal, and miscellaneous technologies)
PC Petroleum Coke (Solid)
PG Propane
PUR Purchased Steam
RFO Residual Fuel Oil (includes No. 5 and No. 6 Fuel Oils and Bunker C Fuel Oil)
SC Coal-based Synfuel and include briquettes, pellets, or extrusions, which are formed by binding materials and processes that recycle material
SLW Sludge Waste (Waste Oil blended with Residual Fuel Oil)
SUB Sub-bituminous Coal
SUN Solar (Photovoltaic, Thermal)
TDF Tires
UNK Other, non specified
WAT Water (Conventional, Pumped Storage)
WC Waste/Other Coal (Anthracite Culm, Bituminous Gob, Fine Coal, Lignite Waste, Waste Coal)
WDL Wood Waste Liquids (Red Liquor, Sludge Wood, Spent Sulfite Liquor, and other wood related liquids not
WDS Wood/Wood Waste Solids (Paper Pellets, Railroad Ties, Utility Poles, Wood Chips, and other wood solids)
WH Waste Heat
WND Wind
WO Oil-Other and Waste Oil (Butane (Liquid), Crude Oil, Liquid Byproducts, Oil Waste, Propane (Liquid), Re-refined

Capacity: Nameplate capacity as reported by the power plant owner.

County: The physical county the power plant is located in. May include non-California counties.

Net Generation (MWh): Total energy produced by the unit for the given year in megawatt-hours.

Primary Fuel Use (MMBtu): Total primary fuel consumed by the unit in a year as measured in MMBtu.

Primary Energy Source: Primary fuel type used by the generating unit.

Secondary Fuel Use (MMBtu): Total secondary fuel consumed by the unit in a year as measured in MMBtu.

Secondary Energy Source: Secondary fuel type used by the generating unit.