The best way to solve the problem is to adopt the reliability cost - benefit analysis method which analyze the outage costs of generation side and demand side to find the optimal reliability to reduce the power company and the customer ' s costs to the least 解决这一矛盾最好的办法就是采用可靠性成本?效益分析法,综合分析供电侧的投资成本和用电侧的停电损失,寻求一最优可靠度,使供用电双方的成本费用为最小。