Microgrid ESS Solution

Microgrid, also known as a distributed energy island system, combines generators, loads, PV power generation, ESS, and control systems into a standalone controllable unit to meet the power needs of local users. The ESS-plus microgrid solution is suitable for remote areas and "power blank areas" that are not covered by grid, such as islands and remote mountainous areas.
ESS plays the following three main roles in a microgrid system:
1. Enhancing the stability of distributed energy resources:
Distributed energy resources such as solar energy, wind energy, and biomass energy are greatly affected by external factors such as sunlight, temperature, wind, and climate, resulting in random and unstable power generation. Energy storage can jointly control distributed energy resources through EMS and the main grid, to stabilize the fluctuations of distributed energy resources and ensure stable output. It improves the on-site utilization of distributed energy, and prevents transmission pressure and power loss in long-distance transmission. Additionally, ESS stations can provide partial power supply to the main load during the night or maintenance periods of distributed energy resources, reducing power outage time.
2. Improving power quality:
When a microgrid is connected to the main power grid, the power quality must meet relevant standards. ESS can improve the power quality of distributed energy resources.
3. Peak shaving:
In a microgrid, ESS can store extra power generated by distributed energy resources when the electricity demand is low and release power during peak periods to regulate load requirements, serving as an energy buffer for the microgrid. At the same time, ESS stations can dynamically expand the capacity required by gensets or transformers while meeting peak load power.