ESS Solution

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Generation-side Application

With the rapid increasing proportion of installed new energy power generators, the pressure of grid regulation is gradually emerging.ESS installation is the best way to curb the output fluctuation of new energy power generators, and prevent curtailment of power generated by wind and solar.

At present, the policy has mandated proportional installation of ESS in PV and wind power plants.And for distributed PV power plants with a certain scale, requirements for ESS installation will also be carried out.

Shared ESS develops rapidly in China. As it has a higher utilization rate and more income modes than PV power plants, it will surely become a mainstream ESS type on generation-side application in the future.

Grid-side Application
Electric auxiliary

For C&I ESS that is used for peak shaving and load shifting or PV plants , it can provide electric auxiliary service and obtain benefits when the demand for grid electricity is high. At present, VPP (Virtual Power Plant) becomes prevailing and develops rapidly around the world. It is mainly for ESS participating in grid-side system construction.

Peak-to-valley arbitrage

Due to the domestic enlargement of the upper and lower limits of the electricity price difference, and many local governments give subsidies to ESS installation, the economic benefits of peak-to-valley arbitrage is increasing. Some southern provinces can even recover costs in 5-7 years, and the market will expand rapidly.

Peak shaving and load shifting

For enterprises that need to increase electrical facilities or with large power consumption,peak shaving can reduce the fee of capacity reserve and capacity increasing. ESS can bring economic benefits and is easy to implement.It can avoid economic losses caused by long-term waiting for capacity increasing.

Self-consumption PV-ESS

With the continuous improving requirement of energy saving and emission reduction , in some enterprises the demanding proportion of green electricity is also rising.A PV power plant can only cover 30% of the self-consumption energy supply, but the maximum ration can reach 80-90% if the PV power plant integrated with ESS.

The PV-ESS integration system can also meet the demand of continuous C&I power supply in case of power failure.

C&I self-consumption PV-ESS integration system tracks the PV system and load in real time through EMS , and can quickly adjust the operating status:

When the PV power exceeds the load consumption, the excess power will charge the battery to reduce the reverse power transmission.

When the PV power is lower than the load consumption, the battery will discharge, and the inconsumption part will be provided by the grid.

The speed of tracking and controlling load power of the PV-ESS system can reach less than 1.5 seconds.

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