To promote our city public institutions registered in energy, resources, ecological and environmental protection work, to play a public institutions use and consumption of clean energy resources demonstration leading role, recently, the photovoltaic application of dongying city authority affairs administration, the municipal development and reform commission jointly issued by the on the roof to organize the implementation of the city's public institutions notice of distributed photovoltaic power projects, the promotion of solar photovoltaic power generation project in the city's public institutions. Specifically, CGNPC 603 mw, guangzhou development of 410 mw, 345 mw in energy saving, heat storage system in the group of 220 mw, solar power network, the people vote for 200 mw, 190 mw hubei energy group, huaneng 180 mw photovoltaic network statement: this information is reproduced from the power grid cooperation media or other Internet website, solar photovoltaic network published the article for the purpose of the information, does not mean that agree with his point of view or confirm its description. Solar photovoltaic (pv) net news: on February 21st, dongying city authority affairs administration, municipal development and reform commission jointly issued by the 'on the roof to organize the implementation of the city's public institutions notice of distributed photovoltaic power generation project, chest back what material which mentioned, promotion of solar photovoltaic power generation project in the city's public institutions. Early, straight and guangrao county department units have carried out the photovoltaic contract energy management pilot project. The article content is for reference only. From the standpoint of energy conservation and environmental protection, phase change heat storage principle, solar energy, solar energy, the project can save coal of 352 a year on average. 21 tons of CO2 emissions reduction, 757. 51 tons, equivalent to planted 984. 82 trees. Public institutions of solar photovoltaic power generation project is to use contract energy management way, photovoltaic application principle of phase change heat storage using public institutions office building roof, the dachaoshan hydropower station by the enterprise investment install solar photovoltaic power station, public agencies access to cheap electricity price, contract period and save conditions of expenditure, and guarantee the roof waterproof reach the purpose of saving energy resources and protect the environment. This paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the dachaoshan hydropower station EPC project owner units is given priority to with soe/state, this also reflected from the side, in project bidding and parity, the state-owned enterprises has become the absolute main force. Heat storage system to straight pilot project as an example, be determined by the bidding of the bid-winning enterprises invest in the capacity of 730 kw of distributed photovoltaic power station, solar energy, solar energy, the contract period is expected to save electricity capital of 1. 36 million yuan, is expected to save waterproof money 99. 60000 yuan.