Does the variable nature of wind power add significant costs to the electric grid?
No. Integrating wind power onto the electric grid has proven to be relatively trouble-free and low-cost. For example, for years Pacific Gas & Electric Company has operated an integrated electric system in California with wind representing up to 10% of total generation without any increase in grid system costs. Grid operators must contend with the unique characteristics of all types of generation. Indeed, electricity from wind power already powers over 2.1 million homes in 35 states across the country.
