Solar & Battery Options
Octopus Energy offer a range of solar & battery combinations to suit each home based on it's size, energy usage, and other smart tech used in the home. Mention our packages to your solar specialist after you get a quote, and they can help you choose the best option for your home.
Here's an overview of the packages (or scroll down to read about them in detail!):
| Smart | Optimised | Tesla | |
|---|---|---|---|
| Battery size options | 5/10 kWh | 5/10 kWh | 13.5 kWh |
| Best tariff | Intelligent Octopus Flux | Intelligent Octopus Flux | Intelligent Octopus Flux |
| Inverter | Separate or built-in inverter | Microinverters | Built-in inverter |
| Whole home back-up option | No | No | Yes |
| Price | £ | ££ | £££ |
Smart Solar + Battery 🔋
Great value and smart tariff compatible - easy charging that helps you save, or even earn, on your energy.
Perfect for: straightforward, sunny roofs (no shady spots!) - store the energy you generate and use it when you want to avoid peak rates.
Comes with a wall-mounted inverter, and the option to add a 5 kWh battery
Backed by a 12-year warranty for inverter and battery
🐙 Works best with: Intelligent Octopus Flux
From £7,915 for 4 solar panels + a battery
(Solar panels-only and battery-only options are available)
BASE Smart package:
Includes: Between 3 to 16 PV panels (455W), Fox ESS H1 inverter (3.7kW), and Fox ESS EP 5.18 kWh battery
System size: 1.8 to 5.4 kW
MAX Smart package:
Includes: Between 3 to 12 PV panels (455W), Fox EVO 10.24 kWh battery and built-in inverter (5kw)
System size: 1.8 to 8.1 kW
Optimised Solar + Battery💡
Optimised performance and greater reliability, thanks to microinverter technology. Smart tariff compatible.
Perfect for: shaded or larger roofs - make the most of every sunbeam with panel-by-panel optimisation + monitoring.
Comes with microinverters, and the option to add 5 kWh or 10 kWh batteries
Backed by a 25-year warranty for the microinverters and 15-year warranty for the battery
🐙 Works best with: Intelligent Octopus Flux
From £9,187 for 4 solar panels + a battery
(Solar panels-only options are available)
BASE Optimised package:
Includes: Between 4 to 30 PV panels (455W), Enphase IQ Microinverters, and 1-2x Enphase IQ Battery 5P (5 kWh each)
System size: 1.8 to 13.6 kW
Octopus x Tesla - FuturePower 🐙⚡️
For energy independence and off-grid reliability
Perfect for: ultimate levels of control and monitoring - power your whole home (even in a blackout!)
Customisable: use expansion packs to double or triple storage
Backed 10-year warranty on the battery (and built-in inverter)
🐙 Works best with: Intelligent Octopus Flux
From £12,362 for 4 solar panels + a battery
(Battery-only options are available)
Includes: Between 10 to 30 PV panels (450W) and a Tesla Powerwall 3 (13.5 kWh)
System size: 2.7 - 13.6 kW
Tesla packages aren't available for solar-only installs as Tesla inverters are built-in to Tesla batteries.
Our most popular system starts from £11,115
Our most popular system is a 12 panel installation with a 10kWh smart battery which costs £11,115. All costs are based on April 2026 prices.
Your solar system, designed and installed from just £6,663
Our prices start at £6,663 for a 2 panel installation with no battery, based on April 2026 prices.
What's the average cost to have solar panels installed by Octopus energy? (FAQ)
The cost of installation can depend on how many panels you need, whether you choose to have battery storage, and what size of battery you require. The cost of a panel-only installation by Octopus starts from £6,663 (for 2 panels). Our most popular system is a 12 panel installation with a 10kWh smart battery which costs £11,115 All costs are based on April 2026 prices.
You'll have the option to pay monthly with a fixed-term loan, or pay in full after installation. We'll ask you to pay a non-refundable deposit of £500 when you sign your installation agreement.
Your solar and battery system could pay for itself in 9-13 years
According to the Energy Saving Trust, a solar system can pay back its cost in 9–13 years, depending on where you live and how much time you spend at home.
Payback periods are affected by factors such as your household electricity use, your roof size and orientation, and whether your system includes a battery.
After a free consultation, our solar specialists can provide a tailored estimate of your potential savings and payback period based on your home and system design.
Solar systems increase the value of your home
Analysis by the Department of Land Economy at the University of Cambridge suggests a 16% value uplift for new-build homes with enough solar and battery storage to eliminate energy bills. A further study of over five million existing properties indicates a 2-3% value increase for existing homes with solar panels or heat pumps (versus like-for-like gas-heated homes). According to the Sustainable Markets Initiative: Sustainable Markets Initiative: Cleantech Homes report, 2024.
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