这些电力生产企业由私人出资并接受政府监管，通过电力采购协议来完成运营，公共事业部门和监管机构在电力采购协议中同意以事先约定的价格采购电力供应。
Privately funded but government regulated, these producers operate through power purchase agreements, whereby public utilities and regulators agree to purchase electricity at a predetermined price.