Clear answer
Clear answer, explained.
A battery stores energy when electricity is cheapest—either from onsite solar or off-peak grid power—and automatically supplies that stored energy when rates rise. This reduces purchases during expensive periods, lowering total energy costs and improving the value of a solar installation.
Key points
What this means in practice.
- Charges during off-peak or low-rate periods
- Discharges during peak or mid-peak pricing
- Reduces total electricity bill under
- TOU tariffs
- Increases solar self-consumption
- Operates automatically with energy management controls
When this applies
Best-fit environments.
- Businesses on
- TOU or tiered electricity rates
- Offices, retail, and commercial facilities with daytime peaks
- Solar-plus-storage installations
Q·01
