State Grid Nanjing Power Supply Company solves the charging problem of old communities
On August 21, the "integrated photovoltaic, energy storage and charging" intelligent charging station built by State Grid Nanjing Power Supply Company in Sifang Xincun was successfully put into operation, effectively solving the charging problem of this old community.
Sifang Xincun community was completed in 1998. There are about 2,600 households in total. The parking spaces are tight and the power capacity is limited. In response to this situation, State Grid Nanjing Power Supply Company and Guanghua Road Sub-district jointly constructed Jiangsu Province's first intelligent charging station with integrated photovoltaic, energy storage and charging in the old community.
"'Integrated photovoltaic, energy storage and charging' refers to a green charging mode in which photovoltaic power generation, energy storage, and vehicle charging are integrated and coordinated with each other," said Zhang Xinzhan, general manager of State Grid Nanjing Electric Vehicle Service Co, Ltd, noting that the charging station has a photovoltaic canopy with an installed power of 30 kilowatts. It can provide about 30,000 kilowatt-hours of green electricity throughout the year. It is also equipped with two sets of 240 kilowatts - 200 kilowatts/261 kilowatt-hours of sponge energy storage and charging cabinets. The total charging power is 480 kilowatts, which can simultaneously provide fast charging for eight new energy vehicles.
During the day, the electric energy generated by the photovoltaic canopy will be given priority to supply vehicle charging. The remaining electric energy will be stored in the energy storage system and sent to the charging piles during the peak charging period to assist in supporting the power load. "Through advanced sponge power technology, the system will give priority to using the charging piles and energy storage system to consume the electric energy generated by photovoltaic. The photovoltaic consumption rate can reach 100 percent, which is equivalent to saving about 3.12 tons of standard coal per year," Zhang Xinzhan said, adding that under the demand-side response mode, the charging station can meet the peak shaving of 200 kilowatts for 2 hours. Under the auxiliary service mode, it can meet the valley filling of 100 kilowatts for 4 hours, realizing friendly interaction with the power grid.
In addition, to meet the residents' need for a more convenient and comfortable charging service experience, State Grid Nanjing Power Supply Company has also built an "Energy Cube" intelligent green energy post house next to the charging station, which is convenient for new energy vehicle owners to take a break during charging and also provides a haven for new business forms and new employment groups.