煤电“三改联动”实施分析与措施建议

Analysis and suggestions on the implementation of“three-renovation”of coal-fired power

煤电“三改联动”是煤炭清洁低碳转型的有效手段。分析了煤电的能效、灵活性和供热现状,研究了煤电实施“三改联动”的政策要求、实施进展和预期效果。从改造技术难度看,节能改造难度最高,灵活性改造次之、供热改造难度相对较低。预计“十四五”末全国煤电供电煤耗率将降至297 g/(kW·h)左右,新增调峰能力预计在4000万kW以上,供热范围进一步扩大。针对煤电亏损面大、部分类型机组技术改造难度大、设备低负荷运行安全隐患大、改造投入产出不可预期性大、改造资金有待进一步加大等问题,从政策、技术、标准、市场等角度提出了促进煤电“三改联动”的措施建议。

“Three-renovation”(energy-saving renovation,flexibility renovations and heating renovations)of coalfired power is an effective measure for clean and low carbon utilization of coal.The paper analyzes current energy efficiency,flexibility and heating situation of coal-fired power,and researches the policy requirement,implementation progress and expected effect of“Three-renovation”.In terms of technical difficulty,energy saving renovation is the most difficult,followed by flexibility and heat supply.It is anticipated that the coal consumption for power supply will be decreased to about 297 g/(kW·h),the additional peak regulation capacity will be over 40 GW and the heating scope will be further expanded.In view of the problems such as large coal power loss,difficult technical transformation of some types,hidden safety risks of equipment under low load operation,unanticipated input and output of renovation,and small financial support of renovation,this paper puts forward measures and suggestions to promote the“Three-renovation”from the perspectives of policy,technology,standards and market.