Powerful Solutions for Energy Independence(TM). Calpwr is a full service provider of DG and cogen solutions for municipal, institutional, commercial and industrial customers throughtout the US, Canada, Latin America and the Carribean. Headquartered in San Diego with offices in Los Angeles, Boston, Vermont & Maine, Calpwr offers a complete scope of services focused on on-site energy solutions. Calpwr's subsidiary, Bio-Spark, offers the same "end-to-end" services opportunity to bio-gas to energy projects throughout the US and Canada. Our focus and depth of resources allows us to offer the most complete DG services offering in the industry- including the ability to build, own & operate DG plants.