Longi 485W Panels + Duracell Energy 16kWh Battery
Installation & VAT included
Store solar power or cheaper off-peak electricity for later. Get solar and Duracell Energy battery storage from £8,685, including installation and VAT.
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Choose battery storage for your existing home, or a package with new solar panels. Prices below include installation and VAT.
Installation & VAT included
Installation & VAT included
Battery capacity, new solar panels, cable routes and electrical work all affect the package. Backup needs to be part of your system design, so tell us if power-cut protection is a priority.
A battery-only retail price is different from an installed package. Your proposal sets out the equipment, installation work and any backup equipment included, so you can compare like for like.
Talk through your optionsDuracell Energy batteries store electricity for later use. With a compatible system, the Duracell Energy app helps you monitor your home’s energy and manage charging.
Store surplus generation for the evening, rather than buying all that electricity back from the grid.
Explore solar & batteryWith a suitable time-of-use tariff, charge at a lower rate and use stored electricity when rates rise. Savings depend on your tariff, usage and charging losses.
Explore battery storageA compatible backup installation can supply selected essential circuits during a power cut. The circuits supported and backup duration depend on the design, battery charge and appliances in use.
Understand backupStart with your electricity use, then choose the storage and equipment to match.

Founded by heating engineers in 2019, iHeat now helps homeowners with heating, solar and battery storage. We bring together your quote, installation and aftercare, with a team you can contact when you need help.
We’re a solar and battery installer. Installation work is carried out by iHeating Solutions Ltd, our MCS-certified installation company. We’re also an Octopus Energy Trusted Partner.
Meet the people behind iHeatStart with battery storage or solar and battery. Share your electricity use and existing setup so we can discuss a suitable system.
We’ll arrange a call to discuss your home, battery position and backup needs, then prepare your free, no-obligation proposal. We’ll confirm the work and installation arrangements before you decide.
Your installer fits and commissions the system. We’ll explain monitoring through the Duracell Energy app, and our aftercare team is here if you need help.
Our award-winning customer service team is here to support you after installation.
Pay in full or spread the cost of your solar and battery installation.
Questions about choosing and installing your battery?
Duracell Energy battery packages are available at our current quoted prices, and solar-and-battery packages from £8,685, including installation and VAT.
Your final price depends on the capacity, inverter, solar panels and electrical work your home needs. Your free proposal confirms the equipment and installation work included, with any backup requirements agreed before you book.
No, a suitable battery installation can work without solar panels. With a compatible time-of-use tariff, you can charge from the grid at cheaper times and use stored electricity when rates are higher.
If you have solar panels, a compatible battery can also store surplus generation for later. The savings depend on your electricity use, tariff, system settings and charging losses.
It may be possible, but your existing inverter and electrical setup need checking. We’ll review your panels, inverter, supply and available space before recommending a compatible installation.
Share the make and model of your existing equipment during your proposal call. Your design will confirm whether an additional or replacement inverter is needed.
Choose capacity around the electricity you can charge and use each day, rather than choosing the biggest battery. Your household usage, solar generation and off-peak charging window all matter.
Battery capacity in kWh describes stored energy; inverter output in kW affects how much power can be supplied at once. Usable capacity can differ from the advertised nominal capacity. We’ll explain both in your proposal and discuss future expansion where the selected equipment supports it.
Backup is not automatic with every battery installation. It needs compatible equipment, electrical isolation and a design that specifies the circuits to be supplied. Tell us if this is a priority before choosing your package.
The appliances supported depend on the inverter’s backup output and the circuits connected. Runtime depends on battery charge and the electricity those appliances use. Your proposal will confirm the backup arrangement and any additional work or equipment.
Start with a quote, then arrange a free, no-obligation proposal call. We’ll discuss your home, electricity use, battery location and any solar or backup requirements. We’ll confirm the equipment, electrical work and installation arrangements before you decide.
Your installer fits, tests and commissions the system, then explains operation and monitoring. Installation time and any interruption to your electricity supply depend on the agreed work; we’ll explain the plan before the installation.
The manufacturer’s warranty depends on the products in your package. Check the warranty duration, registration requirements and conditions for the battery and inverter in your proposal; they may differ.
Keep your handover and warranty documents. The iHeat team is here after installation: tell us about any concerns so we can review it and explain the next steps. You can also check Duracell Energy’s warranty guidance.
You can pay in full by credit or debit card or apply for finance. Our solar and battery options include 12 months at 0% APR with a 25–50% deposit, or 24–120 months at 9.9% APR representative with a deposit from £250 up to 50%.
Finance is subject to status, affordability and terms. iHeat is a credit broker, not a lender. Interest-bearing finance increases the total paid. See solar finance options; your proposal will confirm the repayments and total amount payable before you decide.
Still have a question? Talk to our team
Tell us about your electricity use. We’ll help you compare Duracell Energy storage on its own or with new solar panels.