郑小强代表举例称，推广太阳能光伏发电+电取暖技术，以河北中部地区，100平米户用住宅为例，安装一套5千瓦光伏发电系统，同时安装一台电采暖设备(假设采用空气源热泵作为电采暖设备)，则项目总投资5万元左右。光伏系统年发电6000千瓦时，按发电量30%用于自用(包括取暖及其它用电)、70%剩余电量并网计算，家庭光伏发电并网年收益为3732元。电采暖机组白天运行时间所需电量由光伏发电系统加市电共同提供，夜间用电运行享受谷电电价，年采暖季电费支出1260元左右(若未安装光伏系统，则需支出电费2200元左右)。

       “综上，安装一套光伏发电+电采暖系统，从技术上来看，既能通过光伏补充电采暖用电需求，同时提高光伏发电自发自用比例，又可解决冬季采暖需求。从经济性上来看，光伏系统发电收益在支付采暖季电费之后，额外可取得2472元收益，相对与设备初始投资的5万元，静态投资回收期超过二十年，无法满足6到8年回收投资的预期，目前在推广上存在经济性障碍，需要得到政策支持。”郑小强代表说。

     对此，郑小强代表建议在推广光伏发电+电采暖技术的过程中，加大政策支持。对于采用光伏发电+电采暖模式的项目，对其光伏发电部分，予以0.2元/千瓦时的省级度电补贴，期限为3年(与光伏扶贫政策等同)，通过提高电费收益的方式，提高项目收益率，缩短投资回收期;对其电采暖设备予以政策性初装补贴，比例为设备购置价格的80%，补贴上限建议设置为2万元以内(与煤改电政策相当)，同时对电采暖用户夜间采暖享受谷电价格，通过解决初始投资高、后期用电费用高两个障碍，推动其推广应用。

Zheng Xiaoqiang representative for example, the promotion of solar photovoltaic power generation + electric heating technology, to the central region of Hebei, 100 square meters of household residential as an example, the installation of a 5 kilowatt photovoltaic power generation system, and the installation of an electric heating equipment (assuming the use of air source heat pump as electric heating equipment), the total investment of the project is about 50,000 yuan. The annual power generation of the photovoltaic system is 6000 kWh. If 30% of the electricity generation is used for self-use (including heating and other electricity) and 70% of the remaining electricity is connected to the grid, the annual income of household photovoltaic power generation is 3,732 yuan.The electricity required by the electric heating unit during the daytime operation time is jointly provided by the photovoltaic power generation system and the municipal electricity. At night, electricity operation enjoys the valley electricity price, and the annual heating season electricity cost is about 1260 yuan (if the photovoltaic system is not installed, the electricity cost is about 2200 yuan).

"To sum up, the installation of a photovoltaic + electric heating system, from a technical point of view, can not only supplement the electricity demand for electric heating through photovoltaic power, but also improve the proportion of photovoltaic power generation for self-use, and can solve the winter heating demand. From economics point of view, photovoltaic power generation system gains after paying electricity heating season, may obtain 2472 yuan extra income, relative and equipment initial investment of 50000 yuan, the static payback period for more than twenty years, can meet the expected investment recovery 6 to 8 years, currently exists in the promotion of economic barriers, need to get the policy support."Zheng Xiaoqiang representative said.

In this regard, Zheng Xiaoqiang suggested on behalf of the promotion of photovoltaic power generation + electric heating technology in the process, increase policy support. For projects adopting the photovoltaic power generation + electric heating mode, the photovoltaic power generation part will be subsidized 0.2 yuan/kWh at the provincial level for a period of 3 years (the same as the photovoltaic poverty alleviation policy). The project yield will be increased and the investment payback period will be shortened by increasing the income from electricity costs.Policy die erste installation subsidies to its electric heating equipment, compared with 80% of the equipment purchase price, ceiling is recommended within set to 20000 yuan (quite) with coal to electricity policy, as well as the electric heating user heating at night to enjoy valley electricity prices, by solving the initial investment is high, the later period of the high cost of electricity two obstacles, promote its popularization and application.