How much do you use, and when?
Your bill and smart-meter data show how much electricity you use and at what time of day. That sets the battery size and tells us how much of your demand solar can realistically cover.
Solar and battery packages,
designed as one system.
The simplest route to a complete home energy system. We pair the right solar panels with the right battery, sized together around how your household uses electricity, install both in one visit and give you the information you need to choose a smart tariff.
- OneDesign, one installation, one handover
- MCSCertified, SEG ready
- 0%VAT currently on home solar & battery
- SmartTariff ready
GenerateSolar sized to your roof and usage
StoreBattery sized to your evenings
OptimiseCharge off-peak, export at better rates
ReadyEV charger and heat pump ready
01. Who this page is for
Why sizing them together
Why sizing them together
beats adding a battery later.
Solar panels on their own generate most of their energy in the middle of the day, when many homes are empty. A battery on its own only saves money if there is cheaper energy to fill it. Designed together, the two cover far more of your household demand: daytime generation is stored for the evening, and the battery tops up on cheaper overnight rates when the sun has not done enough.
When we design a package we start with your electricity bill and how you live: when you are at home, whether you cook with electricity, and whether you have or plan to get an electric car or heat pump. That tells us how large the solar system should be and how much storage you will use. We will not simply sell you the biggest battery that fits the wall.
One installation means one scaffold, one electrical design, one set of paperwork and one handover. We choose the inverter, battery and monitoring to work together, ready for you to use with a smart tariff.
02. How we size a package
Three questions
Three questions
shape your design.
What can your roof take?
Orientation, pitch, shading and available area set the size of the solar system. We survey the roof and structure ourselves rather than designing from a satellite image alone.
What comes next?
An electric car, a heat pump or a growing family changes the numbers. We size and wire the package so the next step is an addition, not a redesign.
03. Why Synergy Power
One installer,
One installer,
accountable for the whole system.
In-house MCS team
Our own engineers survey, design, install and maintain your system. We do not use call centres.
MCS · RECC · TrustMark · NICEICSized to you
We model every package on your own consumption and give you an estimated system size, savings forecast, carbon estimate and indicative return.
Free feasibility study firstCertified equipment
We are a Tesla Powerwall certified installer, and we choose the inverter, battery and monitoring to work together.
Backup power optionsSmart tariff ready
Works with smart tariffs. You choose and switch tariff with your energy supplier, and as an Octopus Energy Trusted Partner we can give you the information you need.
Charge off-peak, export at better rates
04. How it works
From feasibility study
From feasibility study
to one-day install.
Step 01
Free feasibility study
Send us a recent electricity bill. A UK engineer works out your package size, savings forecast, carbon reduction estimate and indicative return.
No obligationStep 02
Home survey
Our own engineer checks the roof, structure, consumer unit, cable routes and where the battery will go.
Own engineersStep 03
Fixed-price design
A package designed for your home, with room to add an EV charger or heat pump later.
Fixed priceStep 04
Installation
Our MCS-certified team installs, tests and commissions your solar and battery, usually in a single visit.
One team, one visitStep 05
Handover
You receive your MCS certificate, which you need to apply for the Smart Export Guarantee with your chosen supplier, and your monitoring app.
Long-term support
06. Related residential services
Batteries, maintenance
Batteries, maintenance
and cleaning.
07. Free feasibility study
Find out what your package
Find out what your package
should look like.
Share a recent electricity bill and a few details about your home. A UK engineer will size the solar and battery together and give you the figures.
- Estimated system size
- Estimated bill savings
- Carbon reduction estimate
- Indicative payback
08. Package FAQs
Your package
Still have a question?0330 043 1047 Your package
questions answered.
Is a package cheaper than buying solar panels and a battery separately?
Installing both in one visit saves a second scaffold, a second electrical design and a second set of paperwork. It also lets us choose an inverter and battery that work together. Your fixed-price quote shows the package cost clearly.
How big a battery do I need?
That depends on how much electricity you use after dark and whether you charge a car or run a heat pump. We size it from your own data, not from a standard bundle.
Will the battery keep the lights on in a power cut?
Some systems can provide backup power to selected circuits or the whole home with the right equipment. Tell us if that matters to you and we will design for it.
Can I add an EV charger later?
Yes. Packages are designed with the next step in mind, so adding a charger or a heat pump later is an addition rather than a redesign.
Do you set up my smart tariff?
No. You switch to a smart tariff with your energy supplier yourself. As an Octopus Energy Trusted Partner we can give you the information you need to choose a tariff that suits your solar and battery.
Is there VAT on a solar and battery package?
Solar panels and battery storage installed in homes in Great Britain are currently zero-rated for VAT under HMRC's energy-saving materials relief, until 31 March 2027. Our quotations reflect this.
Do I need permission from the network operator?
Smaller systems are usually connected and then notified to your Distribution Network Operator under G98. Larger systems need a G99 application approved before connection. We confirm which applies to your package at design stage and handle the paperwork.
What is the Smart Export Guarantee?
Licensed electricity suppliers pay you for the electricity you export, based on metered export. Each supplier sets its own rate, and systems up to 50 kW need MCS certification to qualify. You apply to your chosen supplier using the MCS certificate we give you.
One system.
One team.
A free feasibility study from our UK engineering team: package size, savings forecast, carbon reduction estimate and indicative return for your home.