This page updated November 25, 2009

Mandatory Greenhouse Gas Reporting
2008 Reported Emissions

Background

Under California’s mandatory Greenhouse Gas (GHG) Reporting Program, California's largest industrial GHG emitters reported their  emissions for the first time in 2009.  Also, electricity retail providers and marketers reported electricity transaction information.  The reported GHG emissions and summary transaction data for calendar year 2008 are now available.

• Facility Emissions (summary spreadsheet)
• Electricity Retail Providers and Marketers (summary spreadsheet)
• Detailed Facility, Retail Provider, or Marketer Reports (individual reports generated by the GHG Reporting Tool)

The GHG emissions reported by facilities through the Mandatory Reporting Program represent approximately 40 percent of California's statewide greenhouse gas emissions (pie chart).  Facility emissions for criteria and toxic air pollutants are reported through different programs and available on the ARB website

The 2008 GHG emissions reports include data from the following industrial sectors: cement plants, oil refineries, hydrogen plants, electricity generating facilities, cogeneration facilities, other large stationary combustion sources, and electricity retail providers and marketers.  Only sources that meet certain size thresholds are subject to reporting.  Oil refineries, hydrogen plants, and large stationary combustion facilities emitting≥ 25,000 metric tons (MT) of CO2 per year are subject to reporting.  The threshold for electricity generating and cogeneration facilities is ≥1megawatt generating capacity and ≥2,500 MT CO2/yr.  

The Facility Emissions summary spreadsheet lists every reporting facility’s name, ARB identification number, reported CO2 equivalent emissions (with biomass CO2 shown separately), location, primary and secondary reporting sectors, NAICS code, generating facility nameplate capacity (if applicable), and report submission status.  The individually generated Detailed Facility Emissions reports include  emissions subdivided into stationary combustion, process, fugitive, and flaring emissions categories, as applicable.  Click on “Generate Public Reports,” then select Facility Emissions Public Report to get started.

The Electricity Retail Providers and Marketers summary spreadsheet lists every reporting entity’s name, ARB identification number, entity type, mailing address, reported SF6 emissions in metric tonnes CO2 equivalent, and power transaction report status.  The individually generated Detailed Retail Provider or Marketer reports include sulfur hexafluoride (SF6) emissions and aggregated electricity transactions data .  The detailed reports also include the reporting status and associated verification body, if any.  Click on “Generate Public Reports,” then select Facility Emissions Public Report to get started.