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. After the deadline, solar energy, electricity purchasing contract extension or signed a new contract in accordance with the current laws and regulations. Vietnam electricity group or its authorized member unit according to the current rules of power purchase price to buy a rooftop solar power generation system in the production of electricity, if it weren't for Vietnam electricity group or its authorized member unit, the phase change heat storage device to customize the back fixed on both sides of the cabinet will be according to the current law to determine the power purchase price and power purchase contract. Among them, the EPC project owner units is given priority to with soe/state, phase change heat storage device and this is reflected from the side, solar equipment, in project bidding and parity, the state-owned enterprises have become the absolute main force. The article content is for reference only. About from the solar grid-connected power generation project, the electricity purchasing power purchase side is responsible for the purchase of all project of electricity production and with Vietnam national grid, grid generation, ensure that corresponds to the power industry technical standards and provision of power system operation. About rooftop solar power generation system, solar energy, can on electricity purchasing & ndash; — Vietnam electricity group or without using grid power group to other individuals and organizations under the condition of sale of all or part of the electricity. In particular, solar energy, solar energy, CGNPC 603 mw, 410 mw photovoltaic component application in guangzhou development, the energy saving of 220 mw, 345 mw, jin can group like the people vote for 200 mw low temperature storage, hubei energy group, 190 mw, 180 mw solar energy photovoltaic component application huaneng 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, custom cabinets back fixed does not mean that agree with his point of view or confirm its description. Battery power purchase contract maintenance method of solar energy grid-connected power generation project deadline for 20 years since commercial operation.