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Alpha ESS battery storage.
Prices & installation.

Store electricity for when your home needs it, with battery storage or a solar and battery package.

Get my Alpha ESS quote
  • Free proposal call
  • No obligation to buy
Storage to suit your homeEquipment, installation & VAT included
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Which? Trusted Trader Which? Trusted TraderTwo years running
Octopus Energy Trusted Partner Octopus Energy Trusted PartnerWorking with Octopus Energy

Use your electricity when it suits you.

Store electricity for later

Explore battery storage to make more use of your solar generation or a suitable off-peak tariff.

Pair storage with solar

Compare packages with new solar panels and a Alpha ESS battery in one installation.

Size it around your home

Choose capacity around your electricity use and available charging window, rather than simply buying the biggest battery.

The iHeat team in our Bolton office
Our team in Bolton.

Your installation. Our team behind it.

iHeat brings together your quote, installation and aftercare. Our team helps you understand the options and what’s included before you commit.

Solar and battery 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 iHeat

How your Alpha ESS installation works.

  1. 1

    Tell us about your home

    Share your electricity use and existing setup. Choose solar and battery or battery storage to start your quote.

  2. 2

    A free proposal call

    We’ll discuss the equipment, available space and installation work, then prepare a free, no-obligation proposal.

  3. 3

    Installation and handover

    Your installer fits and commissions your system, then explains the controls and monitoring included in your package.

Real installations. Real customers.

Hear from iHeat solar and battery customers about their installation experience.

Philip sharing their iHeat experience Battery storagePhilipWatch their story Mrs Williams sharing their iHeat experience Solar panelsMrs WilliamsWatch their story
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Ways to pay.

Pay in full or spread the cost of your solar and battery installation.

Pay in full

Credit or debit card

Pay for your installation by card, without taking out finance.

0% APR

Over 12 months

Spread the cost over one year, interest-free. A 25–50% deposit applies to this plan.

9.9% APR representative

Up to 10 years

Choose a term from 24 to 120 months, with a deposit from £250 up to 50%. Interest applies, so you’ll pay more overall than paying in full.

Finance is subject to status and affordability. Terms and conditions apply. iHeat is a credit broker, not a lender. Your proposal will show the available terms, repayments and total amount payable before you decide. Explore solar finance options.

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Alpha ESS FAQs

Choosing your package, planning the installation and understanding what’s included.

How much does Alpha ESS battery storage system cost with installation?

Alpha ESS installed packages start from a price confirmed in your quote, including installation and VAT, based on the current range shown on this page.

Your total depends on battery capacity, inverter compatibility, electrical work and any backup equipment. Compare the complete package rather than the equipment-only price. Your quote or proposal confirms the equipment and installation work included before you decide.

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Can I use Alpha ESS battery storage without solar panels?

A compatible home battery can charge from the grid without solar panels. With a suitable tariff and controls, it can store electricity during cheaper periods for use later.

The proposed inverter, battery and electrical installation must support your intended setup. Tell us whether you already have solar or plan to add it, so we can discuss suitable packages. Savings depend on your tariff and electricity use.

What size Alpha ESS battery should I choose?

Choose capacity around how much electricity you want to shift to another time of day. Your daily use, solar generation and any off-peak charging window all matter.

Storage capacity in kWh differs from the power available at one moment in kW. Compare both, along with usable capacity and the proposed inverter. The largest battery is not automatically the best fit for your household.

Will a Alpha ESS battery keep my home powered during a power cut?

Do not assume backup power is included with every battery package. Backup depends on the selected equipment, supported operating modes and electrical design, and may require additional components.

Tell us which appliances or circuits you want to keep running. Your proposal should confirm whether backup is included, what it can supply and any limitations. A grid-connected battery alone is not a guarantee of whole-home backup.

What is included in a Alpha ESS battery installation?

Your proposal confirms the battery, compatible inverter where required, installation work and VAT. It also lists monitoring and any optional backup equipment included.

We review available space, electrical arrangements and compatibility with existing solar before installation. Your installer commissions the system and explains the controls. Product warranty terms vary by component and are confirmed with your package.

Still have a question? Talk to our team

Find the right Alpha ESS setup for your home.

Talk through the options with a free, no-obligation proposal.

Get my Alpha ESS quote