Taoke Energy | ESS Solution

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

Frequency Regulation

The fluctuation speed of new energy is too fast, so the traditional regulation means can not keep up with the frequency speed. As the lithium battery energy storage system has a hundred-millisecond speed level in response and regulation,it will gradually become the main means in alleviating the dispatching pressure of the power grid.

Recently, the research on the additional moment of inertia of primary and secondary frequency regulation in China has come to the experimental stage.In the near future,the market for ESS frequency regulation will expand rapidly.

Peak Shaving

The application of ESS in new energy power plants can only solve the problem of power ramp rate control.It can’t efficiently alleviate the pressure of new energy peak shaving. Only when the grid-side is configured with ESS, it can realize functions of peak shaving as well as regulation of the demand-side power. Thus it is possible to improve utilization rate of the the lithium battery ESS and achieve more Investment benefits.

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-sufficient 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-sufficient 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-sufficient 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 insufficient 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.

Backup Power And Independent Microgrid

Backup Power

In recent years,power limitation happens occasionally during the peak period of electricity consumption and the assessment period of energy saving and emission reduction,which brings unpredictable risks to enterprise management.PV-ESS integration system can help enterprises effectively resist the risk of power curtailment and provide reliable backup PV power solutions for hospitals, schools, government agencies, ports,docks and other institutions with high power consumption, reducing the pollution and safety risks caused by the diesel engines.

Taoke Energy provides PV-ESS and pure backup power ESS solutions, which can be interlocked with the main switch to ensure the safety of power control.

Independent Microgrid

Taoke Energy can provide customized solutions for wind-solar-diesel hybrid energy storage system and adjust the control logic appropriately according to the load characteristics and power consumption curve to minimize the user's electricity cost and improve the reliability of system.

ESS Solution