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What's Battery Peak Shaving

Battery peak shaving refers to a strategy used in energy management to reduce or "shave" the peak demand for electricity from the grid. The peak demand is the highest level of electricity consumption that occurs during a specific period, often during times when energy usage is at its highest.

  1. Peak Demand Periods:

    • Electricity grids often experience peak demand during specific times, such as hot afternoons when air conditioning systems are running at full capacity or during early evenings when people return home and use various electrical appliances.

  2. Battery Storage:

    • Battery systems, such as lithium-ion batteries, are used to store excess energy generated during periods of low demand or high renewable energy production.

  3. Discharge During Peaks:

    • When the grid experiences peak demand, instead of drawing additional power from the grid, the stored energy in the batteries is discharged to meet the demand.

  4. Grid Support:

    • By discharging stored energy during peak demand periods, battery peak shaving helps reduce the strain on the electrical grid. This can result in lower electricity costs for consumers, as well as increased grid reliability.

  5. Cost Savings:

    • Many utility companies charge higher rates during peak demand periods. By using battery peak shaving, consumers or businesses can avoid drawing power from the grid during these expensive times, leading to cost savings.

  6. Integration with Renewables:

    • Battery peak shaving is often used in conjunction with renewable energy sources like solar or wind. Excess energy generated during sunny or windy periods is stored in batteries and used when demand is high.

 

Overall, battery peak shaving is a smart grid strategy that helps balance supply and demand, reduces the need for additional power plants to be brought online during peak periods, and contributes to a more efficient and resilient energy system. It's a key application of energy storage technologies in the transition towards a more sustainable and reliable energy infrastructure.

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