Based on the feasibility analysis of service power plant heating system retroffiting, the authors believe that heating system retroffiting of power plants with 125 MW or higher condensed steam units are technically feasible. It is able to fully utilize available, power resources, replacing old and small thermal power plants, centralized boiler rooms, and scattered small boilers, resulting in more efficient energy usage and maevostructue rogulation. In the mean time, schemes and recommendations are presented for future implementation.