Battery without solar

Store cheaper electricity.
Use it when rates rise.

You do not need solar panels to benefit from home battery storage. With a compatible system and suitable tariff, charge from the grid during cheaper off-peak hours and use stored electricity during higher-rate periods.

Get a tailored quote

Inverters & batteries

The right technology.
For your home.

Explore Tesla, GoodWe, Sigenergy with Sunuser. We’ll help you compare systems around your energy use, existing equipment and budget.

Powerwall

An integrated home battery and solar inverter with app-based energy management. We assess the storage, solar and backup arrangement around your home.

Ask about Tesla

Explore Tesla

Powerwall 3

Battery capacity & specifications

13.5 kWh per Powerwall 3. Expansion units add storage capacity.

Backup power

Backup operation requires the appropriate Tesla gateway and an installation designed around the circuits you want to support.

Expansion

Discuss additional Powerwall units or Powerwall 3 Expansion with Sunuser when planning future storage.

EV charging & energy management

Manage home energy through the Tesla app. We can include EV charging in your home energy design.

We’ll confirm dimensions, weight, installation clearances and the exact specification for your selected system.

Product and installation guide →

Solar inverters & battery storage

Solar and hybrid inverter options, compatible home batteries and integrated storage systems. We match the inverter and battery combination to your supply and energy needs.

Ask about GoodWe

Explore GoodWe

Lynx Home F Plus+

Battery capacity & specifications

The Lynx Home F Plus+ range offers approximately 6.6–16.4 kWh per tower, with a compatible GoodWe inverter.

Backup power

Backup capability depends on the selected inverter, its backup output and the circuits included in the installation.

Expansion

A modular battery range lets us match the initial storage capacity to your home and assess compatible expansion.

EV charging & energy management

Sunuser can assess EV charging alongside your chosen inverter and battery system.

We’ll confirm dimensions, weight, installation clearances and the exact specification for your selected system.

Product and installation guide →

SigenStor home energy system

A modular system combining solar inverter, battery storage and energy management. We can discuss storage expansion and compatible charging or backup options as part of the design.

Ask about Sigenergy

Explore Sigenergy

SigenStor

Battery capacity & specifications

Modular battery storage is sized around your electricity use. Sunuser confirms the exact battery generation and usable capacity in your proposal.

Backup power

A compatible gateway and a suitable electrical design are needed for home backup.

Expansion

The modular system supports a design that can accommodate future storage needs, subject to the chosen equipment and installation.

EV charging & energy management

Compatible EV charging options can form part of a SigenStor energy system; the selected charger and vehicle determine available features.

We’ll confirm dimensions, weight, installation clearances and the exact specification for your selected system.

Product and installation guide →

Your proposal confirms the exact equipment, compatibility, usable capacity, output and warranties. Backup and other optional features depend on the selected system and installation design.

Charge off peak

Schedule a compatible battery to charge when your time-of-use tariff is cheaper, often overnight. Tariff windows and conditions vary by supplier.

Use it at peak times

Stored electricity can supply your home when grid prices are higher. This price-shifting approach is often called tariff arbitrage.

Add solar later if you choose

A battery-only system can be designed with future solar in mind, subject to product compatibility, grid arrangements and your property.

Designed. Installed. Supported.

Battery storage.
No solar panels required.

Tariff arbitrage means buying electricity at a lower off-peak rate, storing it, then using that stored energy instead of importing at a higher peak rate. The saving is not simply the tariff difference: charging and conversion losses, usable capacity, battery life, standing charges, changing tariff terms and installation cost all matter.

Talk to our team

Battery-only installation with scheduled grid charging
Daily demand and off-peak charging window reviewed
Usable capacity and output matched to your home
Tesla, GoodWe and Sigenergy options considered
Backup discussed separately where compatible

Your written proposal confirms the scope, price, equipment and relevant warranties before work starts.

Explore your options

Build the right
home energy setup.

Compare Sunuser’s four main routes, from one focused upgrade to a connected system.

Solar panels

Generate electricity from daylight.

Explore this option

Solar + battery

Generate now and store energy for later.

Explore this option

Home EV chargers

Charge intelligently at home.

Explore this option

Useful to know

Your questions,
answered.

Speak to Sunuser

Can a battery really work without solar?

Yes, if the battery and control system support grid charging. It can charge during a cheaper tariff window and discharge later to reduce higher-rate imports.

What is tariff arbitrage?

It is shifting when you buy electricity: charging a battery at a lower off-peak price and using that energy during a higher-price period. Battery losses mean each stored unit delivers slightly less energy than was imported, so the tariff gap must be large enough to contribute towards the wider costs.

Will I definitely save money?

Savings are not guaranteed. They depend on your usage pattern, the difference between off-peak and peak rates, battery efficiency and degradation, tariff rules, standing charges and the installed cost. We model your own figures before recommending a system.

Do I need a special electricity tariff?

Battery-only price shifting normally needs a suitable time-of-use tariff with a meaningful lower-rate charging window. Check the supplier’s current eligibility, rates and rules before switching.

Will the battery protect me in a power cut?

Only if backup is included in the design. It requires compatible equipment and suitable switching, earthing and circuit arrangements; it is not automatic with every battery.

Which battery brands do you offer?

We can discuss Tesla, GoodWe, Sigenergy systems according to the design and current availability. Your proposal confirms the exact model, usable storage, power and warranty.

We don’t sell you the biggest battery. We design the right battery.

A larger battery only helps if your home can use the extra storage. We weigh household consumption, peak demand, existing or future solar, EV charging, overnight charging windows and your tariff against installation cost.

We also discuss desired backup capability and future expansion, so the design fits how you expect to live.

Compare Tesla, Sigenergy and GoodWe

Standards and customer care