calpine plant see following gas daily today calif approves calpine plant california energy commission monday gave final go ahead calpine begin con struction 600 mw natural gas fired metcalf energy center san jose company said approval follows two half year battle local interests opposed proj ect located power hungry silicon valley calpine partnering bechtel enter prises build plant initial tide local opposition finally turned widespread support proposed facility state energy agencies gov gray davis environmental groups san jose city council initially refused give zoning approval facility changed tack groundswell statewide support seriousness state energy shortage became apparent always believed ideal location plant region without local source significant power generation ken abreu general manager joint development companies said statement calpine bechtel begin construction next month start commercial opera tions set second half 2003