NEWS

"'Photovoltaic + energy storage' we have been concerned for many years, 'source network load storage integration' demonstration area was established, we immediately embarked on the energy storage project, is expected to be completed next month." April 29, Zhejiang Haining Jianshan New District and the gold on the roof of the Electronic Technology Co.
With the popularity of distributed power plants, some areas of the country's power grid can withstand the remaining power on the Internet load has reached the upper limit, resulting in some of the new energy projects such as photovoltaic and other grid difficulties, and through the supporting energy storage, staggered consumption or staggered access, will be able to reduce the pressure on the operation of the power grid, but also better development of the new energy projects. 21 April, the National Development and Reform Commission and the Energy Bureau announced "on accelerating the promotion of the new type of storage development of guiding views ", encouraging the combination of different needs of the source, network and load to explore the diversified development mode of energy storage.
In fact, as early as March this year, Haining City in the Jianshan New District set up the country's first "source network load storage integration" demonstration area, while from the policy mechanism on the "new energy + energy storage" requirements, put forward in principle according to the new energy project installed capacity of 10% of the energy storage. Configuration of energy storage.
The market is the "touchstone" to test the policy. After the establishment of the demonstration area, many new energy enterprises, Zhejiang Guanglong Energy Technology Co. "As an investor, we installed a photovoltaic power generation device with a capacity of 800 kilowatts on the rooftop of Hejin Electronics, and at the same time configured a set of 100 kilowatts/276 kilowatt-hours of energy storage system." Zhai Sunhua, deputy technical director of Photon Energy, introduced that this is the first user-side "photovoltaic + energy storage" project in Zhejiang Province.
In terms of photovoltaic power generation, the project occupies a roof area of 10,000 square meters, installing components of 2,132 pieces, with an installed capacity of 800 kilowatts, and adopts the grid-connected mode of "self-generation and self-consumption, with surplus power going online". The annual power generation is 907,900 kWh, saving 330.34 tons of standard coal, emitting 823.37 tons of carbon dioxide, 24.78 tons of sulfur dioxide and 12.39 tons of nitrogen oxides, and reducing 224.63 tons of dust generated by thermal power generation, with obvious economic and environmental benefits.
In terms of energy storage, the project is equipped with a set of 100 kW/276 kWh energy storage system, which is greater than the 10% capacity requirement put forward by Haining City. In order to ensure safety, the energy storage system adopts high power density lithium iron phosphate batteries as the energy storage element, string-type energy storage converter and battery management system. All the energy storage equipment is integrated in a 10-foot container, occupying a small area, while temperature control, fire protection and detection systems are used for 24-hour monitoring to ensure safe and reliable operation.
Economic efficiency is the main factor in the enterprise investment decision. Zhai Sunhua told reporters that, from the enterprise point of view, with the subsidies for distributed photovoltaic power generation regression, photovoltaic power plant revenue has decreased significantly, the conditions of the distributed power plant owner unit if you can also support the energy storage, on the basis of the increase in the direct revenue, but also can be amortized power plant business, operation and maintenance and other costs.