C&I Solution
C&I microgrid systems offer a comprehensive energy solution tailored to the needs of commercial and industrial users, ensuring energy security and financial savings while supporting environmental sustainability.
System Application Diagram
In regions with a stable grid and permission for grid feeds, the Solar + BESS solution is optimal. This setup allows users to draw power from three sources, prioritizing solar photovoltaic (PV) power. During the night or cloudy days, the system can draw energy from the grid or the Battery Energy Storage System (BESS). The generated PV power can be used directly by the load, stored in the batteries, or sold back to the grid during peak pricing periods, thereby increasing economic returns.
1.On-Grid Solar + BESS Solution
In regions with a stable grid and permission for grid feeds, the Solar + BESS solution is optimal. This setup allows users to draw power from three sources, prioritizing solar photovoltaic (PV) power. During the night or cloudy days, the system can draw energy from the grid or the Battery Energy Storage System (BESS). The generated PV power can be used directly by the load, stored in the batteries, or sold back to the grid during peak pricing periods, thereby increasing economic returns.
Advantages:
Economic Benefits: Selling excess power during peak times increases revenue.
Energy Efficiency: Utilizes renewable energy optimally.
Flexibility: Can be expanded with AC coupling.
For a lower initial investment, users can opt for only the Grid-tied PV solution or the Grid-tied BESS solution, which provides advantages like peak shaving and demand management.
2.Solar + BESS + DG Solution for Unstable Grids
In areas with frequent blackouts, the Solar + BESS + Diesel Generator (DG) solution ensures continuous power supply. Under normal conditions, the system utilizes power from the grid, PV, and BESS. When PV generation is insufficient, power is supplemented by the grid or BESS.
During blackouts, the Static Transfer Switch (STS) swiftly disconnects from the grid and the system relies on PV and BESS. If additional power is needed, the diesel generator is activated. This setup ensures system stability and allows the microgrid to operate in isolated island mode.
Transition to Off-Grid Operation:
ATS (Automatic Transfer Switch): Connects generators to the network when needed.
STS (Static Transfer Switch): Quick response to blackouts (within 10ms).
EMS (Energy Management System): Manages power supply, optimizes DG operation, and prevents reverse power flow to DG.
This system maintains a seamless power supply to the load, even during outages, by leveraging the fast response capability of the energy storage system.
