Consumers can buy as many blocks as they like.
Green Power Switch is also being marketed to commercial and industrial consumers, who can buy blocks based on the amount of energy they use. Demand for Green Power Switch, a renewable energy option that gives consumers the opportunity of choosing electricity generated by the sun, wind, and landfill gas, exceeded expectations during a yearlong market test in the Tennessee Valley. TVA, distributors of TVA power participating in the program, and the environmental community now are working to help the supply catch up with demand. TVA also is evaluating the possibility of adding more solar and landfill generation sites in the Valley, as well as the possibility of another 20 megawatts of wind generation capacity in 2003 or 2004. The program was launched on Earth Day 2000, April 22, with plans to build 11 solar facilities, a wind farm, and a landfill gas generation facility.