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CALSEIA is the CALifornia Solar Energy Industries Association. CALSEIA was founded in 1977. It is governed by a 15-member Board of Directors elected by the membership.
CA 94571
Rio Vista , PO Box 782
United States
Contact email:


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CALSEIA’s mission is to expand the use of all solar technologies in California and establish a sustainable industry for a clean energy future

Companies who join CALSEIA are doing business in California or supplying products to California companies. The policies and programs in California affect their livelihoods.

CALSEIA is funded by memberships through annual membership dues

CALSEIA activities

* Enact Legislation: to encourage removal of barriers and policies that help provide an open and competitive market
* Create and/or Modify Regulations: to promote safety, durability, and a competitive market
* Create and/or Maintain Incentives: to build the market to a size that allows the installed cost of solar energy to compete with non-renewable energy resources
* Ethics: to encourage the ethical conduct of companies participating in the solar market. CALSEIA is not a law enforcement organization but it can provide resources to assist people to find the appropriate law enforcement organization.
* Codes and Standards: to ensure safety and reliability and to standardize requirements to reduce costs and improve construction efficiency

Types of Companies that are members of CALSEIA

Manufacturers, Contractors, Distributors, Engineers, Designers, Consultants, Utilities, Educational organizations, Local Governments

Types of solar technologies represented by CALSEIA

* Solar thermal – for water heating, process heat, electric generation, cooling, space condition for residential and commercial applications
* Solar electric (photovoltaic) – for electric generation on homes, businesses, and to the utility
* Concentrating solar – for electric generation, process heat, and cooling
* Solar pool heating – for recreational, athletic, municipal, and therapeutic pools in commercial, residential, and municipal pools

Other SEIA organizations

In Washington, the National SEIA performs similar activities, but with a national focus. SEIA and CALSEIA are separate associations. Membership in CALSEIA does not confer a membership in SEIA, and vice versa.

Solar associations are also working in other states, some of which are also called SEIA (for example OSEIA in Oregon and COSEIA in Colorado).

There are a number of other solar associations in California that are not affiliated with CALSEIA. As appropriate, CALSEIA coordinates with these other state solar associations.