Ormesa I began as a 24 MW plant but in 2002, two 10 MW Integrated Two-Level units were added. This brought the overall nameplate capacity to 44 MW. Ormesa I is part of the Ormesa Complex at East Mesa Geothermal Field. The Ormesa Complex has an overall net capacity of approximately 76 MW.

In 2002, Ormat Technologies Inc. gained ownership of all the East Mesa Projects, which include the Ormesa and GEM facilities. Ormat immediately began a series of changes in order to simplify field operations and boost generation. By 2003 the field modifications and repairs were completed. Acceptance test showed that this resulted in an increase of more than 20 percent in output without any new production wells.

Web site: http://www.ormat.com