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FAQ

  • What is Frequency Regulation?

    Frequency regulation is an ancillary grid service where energy storage rapidly absorbs or injects power to balance real-time supply and demand, keeping the grid frequency (e.g., 50Hz or 60Hz) stable.

    • Primary Goal: Maintain grid balance and stability.

    • Response Time: Seconds to minutes (Short-term power response).


  • What is Peak Shaving?

    Peak shaving uses Battery Energy Storage Systems (BESS) to store energy during off-peak hours (when electricity prices or demands are low) and discharge it during peak usage hours.

    • Primary Goal: Reduce peak power demand and lower demand charges.

    • Response Time: Hours (Long-term energy management).


  • What is the difference between peak shaving and frequency regulation?

    The main difference lies in their response time and primary objective: Peak shaving is an hourly energy management strategy to flatten load demand, while frequency regulation is a second-to-minute level power response service to maintain grid stability.


  • What is user-side, generation-side, and grid-side energy storage?

    • User-side storage: Used for energy management, power quality, and supply reliability (e.g., European residential and commercial peak-shaving).

    • Generation-side storage: Serves generation units to smooth renewable energy output and improve dispatchability.

    • Grid-side storage: Serves grid units to alleviate transmission congestion, delay equipment expansion, and provide reactive support.


  • What are the application scenarios for energy storage systems?

    Main areas include distributed generation and microgrids (off-grid, island, commercial buildings) and large-scale renewable grid integration (home storage, power transfer). In Europe (e.g., France), it focuses on grid stabilization, solar/wind integration, backup power, EV charging, and capacity market participation.

  • What certifications does the product have?

    Both the battery cells and the system comply with European IEC standards, and the PCS holds grid connection certifications in over 20 countries.

  • What are the placement and IP rating requirements for energy storage products?

    Energy storage systems are typically installed outdoors near the power distribution room. They must not block fire lanes and must be kept away from flammable/explosive hazards. An IP54 protection rating is required to support full outdoor deployment.