Energy storage · Home upgrade

Home battery

Store the solar energy your home makes during the day so you can use it during peak periods, when grid electricity typically costs more.

Stores energy

Backup power

VPP-ready earnings

registry

Available models

Batteries currently available for this upgrade. Full specifications are available.

Overview

What is a home battery?

A Battery Energy Storage System (BESS) stores electricity, usually from your rooftop solar, so you can use it later, such as in the evening. Because grid power is typically most expensive in the evening and solar feed-in tariffs are low during the day, storing your own energy can reduce your bills considerably.

It works like a rechargeable power bank for your home: excess solar charges the battery during the day, and you draw on that stored energy at night or during peak times. It is one of the upgrades you may be able to choose through Home Energy Saver.

A battery is most useful alongside rooftop solar. Your home assessment confirms the right battery and size before anything is installed.

suitability

Is it right for your home?

A home battery may suit your home if you:

  • have solar, or are installing solar at the same time
  • use electricity in the late afternoon and evening
  • want more energy independence and some backup during outages

Your property assessment confirms the right battery and size for your home before anything is installed.

Function

How it works

Store

Excess electricity from your rooftop solar charges the battery during the day.

Use later

You draw on the stored energy at night or during peak times when grid prices are highest.

Back up

Depending on the system, the battery can keep essential circuits running during some power outages.

Earn

Connect to a Virtual Power Plant (VPP) so you can earn from the energy you have stored.

At a glance

Key facts

6–35+ kWh

Capacity range

Home batteries generally range from about 6 kWh to 35 kWh or more.

~7 years

Typical payback

A system can pay for itself in about seven years.

$600–$2,500

Yearly saving or earning

Indicative annual benefit through stored energy and VPP payments

Solar-first

Works best with solar

Most useful if you already have, or are installing, rooftop solar.