Store energy when it is cheaper. Use it when it matters.
A well-designed home battery can store surplus solar, charge during suitable off-peak periods and reduce expensive daytime imports. Mr Solar compares capacity, output power, tariffs, solar generation and backup goals before recommending a system.
Which battery route are you considering?
New solar and battery
Design the array, hybrid inverter and storage together so generation, power and monitoring work as one system.
Add storage to solar
Assess the existing inverter, meters, FIT position and electrical installation before choosing AC-coupled or hybrid storage.
Expand an existing battery
Model generation, age, state of health, firmware and manufacturer rules must be checked before adding modules.
Start with the energy window you want to cover.
Battery size should reflect evening demand, solar surplus, tariff-charging windows and future loads. These simple examples show why both capacity and power matter.
Illustrative examples
- 5 kWh: roughly 5 hours at a steady 1 kW load
- 10 kWh: roughly 10 hours at 1 kW, or 5 hours at 2 kW
- 15 kWh: roughly 7.5 hours at 2 kW
- A 7 kW EV charger can consume 10 kWh in under 90 minutes if battery discharge is allowed
Figures are simple energy illustrations, not guaranteed runtime. Allow for battery reserve, conversion losses, temperature, ageing and changing household demand.
Different products suit different properties.
We do not force every project into one manufacturer. Current options and support pages include the following, subject to availability and project compatibility.
Sigenergy
Integrated modular platform for solar, storage, backup and compatible smart-energy options.
Tesla Powerwall 3
13.5 kWh storage with integrated solar inverter and high power capability.
Solis, Fox & Dyness
Modular, wall-mounted and integrated options for different inverter and capacity requirements.
A battery selected around the whole home.
Profile
Electricity use, solar generation, tariffs and future loads.
Compare
Capacity, output, inverter architecture and backup options.
Install
Equipment, protection, meters and monitoring professionally fitted.
Optimise
Schedules, apps, documentation and aftercare explained.
New Sunsynk hybrid range
Explore Sunsynk ACure battery storage
Available in 3.6-8kW single-phase variants for new solar, suitable existing-system retrofits, tariff charging and assessed backup-load applications.
View the Sunsynk ACure rangeWhat should your battery achieve?
Tell us about your electricity use, solar system, tariff and backup priorities. We will help you compare the suitable routes.