New Plants In California Racing Time
Several mammoth construction projects are under way to build power generating plants that are considered essential to easing deepening electricity crisis in California; with no end in sight to energy problems, risk of blackouts may be even greater during hottest summer days when state normally hits its peak demand; even though projects represent total of 6,723 megawatts, or enough to power nearly seven million homes, they do not by themselves guarantee adequate supply of electricity since roughly half of existing power plants are more than 30 years old and are in danger of being retired; photos; map (M)
