The group's principal activity is the sale of retail electric power to residential and small commercial customers in California and Pennsylvania. The group also provides service to larger commercial, industrial and governmental customers. A portion of the electric power sold by the group is delivered to retail and commercial end-user customers by the incumbent utility distribution companies (udcs) and electric distribution companies (edcs). In California, the group provides customers with environmentally friendly power purchased under a contract and in Pennsylvania, it provides customers with a 50% environmentally friendly power product derived from multiple sources. The group has developed its own inside sales force to sell energy efficient and emergency preparedness products to customers by telephone.