Clear answer
Clear answer, explained.
Even short spikes in electricity use—such as HVAC start-up, EV charging, or simultaneous equipment operation—can increase these costs. A battery energy storage system monitors building demand in real time. When electricity use approaches a predefined threshold, the battery discharges stored energy to supply part of the load. This reduces the amount of power drawn from the grid and prevents the demand peak from exceeding the billing limit. For municipal buildings, this strategy helps stabilise electricity costs across facilities such as recreation centres, libraries, and administrative buildings.
Key points
What this means in practice.
- Discharges energy during short peak demand events
- Reduces the highest kW recorded on the utility meter
- Lowers monthly demand charge costs
- Works automatically through energy management systems
- Can integrate with rooftop solar generation
- Particularly effective for buildings with variable loads
When this applies
Best-fit environments.
- Municipal facilities with demand-based utility tariffs
- Recreation centres with large
- HVAC or refrigeration loads
- Buildings with
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