The Cámara de Industrias is encouraging its members to use solar to lower their electrical costs.
The chamber noted that electrical rates have increased 19 percent just this year, and chamber members are big users.
The chamber put on an expo for members Tuesday in which it urged solar as an alternative.
The chamber also noted that in April the national rate setting agency issued a decree that gave electrical users a way to generate power and even sell some back to the utilities.
The chamber received technical advice from the Universidad Técnica de Munich and from the Asociación Costarricense de Energía Solar.