A 2000 law directs electric utilities in Washington to report their fuel mix to customers annually or semi-annually depending upon the size of the utility. Please see RCW 19.29A for specific language, requirements, and definitions.

The attached tables represent the sum of all individual retail electric utility fuel mix reports.

• 2006 Washington State Electric Utility Fuel Mix (Graph)
• 2006 Washington State Aggregate Electric Utility CO2 Emissions by Fuel Type (Graph)
• 2005 Washington State Electricity Fuel Mix (reported to customers in 2006)
• 2005 Washington Aggregate Electric Utility System Emissions by Fuel Type (chart)
• 2004 Washington State Electricity Fuel Mix (reported to customers in 2005)
• Summary of Washington State Electricity Fuel Mix Reports 2000 - 04
• Non-Hydro Renewables in Washington State's Electricity Fuel Mix 2000 - 04
• 2003 Washington State Electricity Fuel Mix (reported to customers in 2004)
• 2002 Washington State Electricity Fuel Mix (reported to customers in 2003)
• 2001 Washington State Electricity Fuel Mix (reported to customers in 2002)
• 2000 Washington State Electricity Fuel Mix (reported to customers in 2001)

All of the fuel mix reports for each electric utility in Washington are attached in one file for each year. Utility reports to consumers are based on actual, historical electricity production for the previous calendar year.

• 2007 Electric Utility Fuel Mix Reports (2006 actual electricity production data)
• 2006 Electric Utility Fuel Mix Reports (2005 actual electricity production data)
• 2005 Electric Utility Fuel Mix Reports (2004 actual electricity production data)
• 2004 Electric Utility Fuel Mix Reports (2003 actual electricity production data)
• 2003 Electric Utility Fuel Mix Reports (2002 actual electricity production data)
• 2003 Report to the Legislature: Suggested Modifications to Electricity Fuel Mix Disclosure
• 2002 Electric Utility Fuel Mix Reports (2001 actual electricity production data)
• Stakeholder Views on Fuel Mix Disclosure Legislation and Evaluation of the Utility Reporting Process

Fuel Mix Disclosure comments and/or questions should be directed to:

• Chuck Murray 360.725.3113
• Howard Schwartz  360.725.3114