Emission values reported here are estimates based on the most current data available and may change as updated emissions information from owned and purchased generation becomes available.
We are working with The Climate Registry to third-party verify and register all of our CO2 emissions from 2005 to 2012, with 2008 and 2010 already complete. The Climate Registry is a nonprofit organization established to provide consistent and transparent standards for calculating, verifying and reporting greenhouse gas emissions into a single registry for North America. We recognize the importance and value of having a formal emissions reporting protocol and became a founding member of The Climate Registry in 2007. To learn more about The Climate Registry and find our reporting information visit theclimateregistry.org.
In addition, we publicly report and make available our annual CO2 emissions, as well as other greenhouse gases, through a number of different reporting programs, including:
These programs each use a unique reporting protocol and may represent emissions differently. While reporting protocols and formats may vary, the information we provide comes from the same data source. In our form 10-K and this report, we also report CO2 emissions associated with owned and purchased electricity that is produced for customers. Electricity production is our most significant source of emissions, and we continue to consistently report associated emissions in tons to help users of our reports to follow the emissions trend.
These charts provide CO2 emissions in millions of tons for Xcel Energy and each of the three operating systems that comprise Xcel Energy. We have included emissions from electricity produced at our owned generating plants and from power that we purchased. A system emission rate is included for each year. It provides the pounds of CO2 emissions produced for each megawatt hour of electricity generated. Projections are based on our most current energy forecasts.
Xcel Energy CO2 emissions (emissions in millions of tons from owned and purchased power)
Find our 2012 energy mix information.
We published our first corporate responsibility report (formerly known as the Triple Bottom Line report) in April 2005, with the contents covering the 2004 calendar year, and we have published a similar report in each following year. Our report is based on Global Reporting Initiative (GRI) G3 Sustainability Reporting Guidelines, the most widely used sustainability reporting framework in the world. Additionally, we incorporate the GRI’s Electric Utilities Sector Supplement indicators wherever possible.