Arizona Attorney General Terry Goddard and Arizona’s Corporation Commissioners said June 15 that the attorney general has certified the Renewable Energy Standards and Tariff.

Certification by the attorney general is a necessary step to make the rules binding on Arizona’s regulated utilities.

The rules require utilities to generate 15 percent of their total energy from renewable energy technologies by 2025.

Commissioners Jeff Hatch-Miller, Bill Mundell, Kristin Mayes, and Barry Wong voted in October, 2006, to require regulated electric utilities to generate 15 percent of the total megawatts sold from renewable resources by 2025.

For 2007, 1.5 percent of retail energy sold by utilities must be from renewable resources. By 2010, the requirement will be 2.5 percent and, at 2015, the rules will require 5 percent from environmentally friendly renewable sources. At 2020, the requirement climbs to 10 percent and tops out at 15 percent in 2025.

The Commission’s Renewable Energy Standards allow utilities to use solar, wind, biomass, biogas, geothermal, and similar technologies to generate “clean” energy to power Arizona’s future.

The rules package outlines which technologies qualify and allows for new and emerging technologies to be added as they become feasible.