Austin Energy, Burlington Electric Department, FPL Group Inc., the Sacramento Municipal Utility District, and Waverly Light and Power responded to a WWF mandatory cap on CO₂ emissions.

Austin Energy, Burlington Electric Department, FPL Group Inc., the Sacramento Municipal Utility District, and Waverly Light and Power responded to a World Wildlife Fund (WWF) challenge to support a mandatory cap on CO₂ emissions and commit to cleaner energy production. "FPL Group is delighted to join today with WWF to take another step toward real improvements for our environment while preserving the economic viability of the U.S. economy," said Environmental Services, FPL Group Inc. Vice President Randy LaBauve. "The WWF PowerSwitch! initiative today is about choices - responsibility...reliability...and results. Quite simply, it's the right thing to do."

The WWF PowerSwitch! Challenge is for power companies to support binding limits on national CO₂ emissions. They must also provide 20 percent energy from renewable sources, increase efficiency by 15 percent or retire the least efficient 50 percent of coal generation by 2020. Renewable sources may include solar, wind, sustainably harvested biomass, low-impact small-scale hydropower, geothermal and methane recovery from landfills or farms.

Efforts may include improving energy efficiency in power production, upgrading distribution technologies, transmission optimization efforts or reducing overall demand from customers in a service territory as part of a strategy to diminish the need for new electricity generation capacity.