Skip to content
Energy Questions

Is a Battery Worth It for My Cool Room?

Why refrigeration suits solar and a battery, how it cuts demand charges, and keeping stock cold in an outage.

The short answer

Often, yes. Cool rooms and cold stores run all night, so a battery lets your midday solar keep running them after dark. It also trims the demand charges set when compressors start, and keeps stock cold during an outage. Whether it pays depends on your tariff and loads, so we model it on your interval data first.

Refrigeration runs around the clock

Solar alone covers the daytime refrigeration load, but a cool room keeps running all night. A commercial battery stores midday solar and runs the compressors after dark, so more of the load is on your own power.

Demand charges

On many business tariffs, part of the bill is set by your highest demand in the month, often when several compressors start at once. A battery covers those peaks, which can cut the demand charge as well as the energy.

Commercial batteries for rural sites

Keeping stock cold in an outage

A battery set up for backup keeps the cool rooms running when the grid fails, and your solar recharges it during the day. For long outages it can work alongside your generator.

How we work out if it pays

  • Your interval data, showing use every half hour
  • Your tariff, including demand charges
  • Your refrigeration and other loads through the year
  • What an outage costs you in lost stock

Your Savings

See what solar and a battery would save you, with your state's rebates applied.

Common Questions

What size battery does a cool room need?

It depends on the compressors, insulation and how full you keep it. Small cool rooms may need 30–50 kWh; cold stores often 100 kWh or more. We size it from your data.

Will a battery run my cool room during a blackout?

Yes, if it's set up for backup. Your solar can recharge it during the day, and a generator can back it up for long outages.

Is there a rebate on business batteries?

The federal battery rebate covers small-business batteries, and in NSW the Peak Demand Reduction Scheme pays for business batteries from 20 kWh.

Ready to transform your energy future?

Tell us about your home, business or farm. We'll design a solar and battery system around your bills, with every rebate applied.

  • RenewableRooftop and ground-mounted solar, sized to you.
  • StorageBatteries that keep your solar working at night.
  • EfficientSmart systems that cut what you pay the grid.