Octopus Smart Power Your Home
More customers turn to heat pumps and solar since start of Iran war
With gas prices spiking, more households are investing in solar and heat pumps to gain independence from global events and a volatile market. Our founder, Greg, spoke to the BBC about the "huge jolt" in orders – and how electrification is leading the way to a smarter, greener and more resilient energy system.
Take control of your energy bills and wave goodbye to gas. With smart tech and clever tariffs, thousands of homes are already electrifying — using power when it’s cheapest and greenest. It's time for you to the reap the rewards.
Welcome to your new home set-up
Picture this. It's a sunny day, so your solar panels create electricity while you potter around the garden, and your battery stores leftover energy to use later. As you kick your feet up in front of the telly, you're kept perfectly toasty thanks to your heat pump. Overnight, your EV charger provides the juice when energy's greenest and cheapest.
Each bit of tech works brilliantly on its own, but together they become something much bigger: a home that powers itself.
Why choose Octopus?
Renewables expertise: We’re one of the UK’s largest investors in renewable energy.
Expert installation: Fully backed by Which? for a fast, professional, and smooth set up.
Smart tariffs: Save on bills with tariffs that work seamlessly with your tech.
Dependable support: Award-winning support and aftercare available 7 days a week.
Stay cosy with a Cosy heat pump
Replace your gas-guzzling boiler with a Cosy heat pump for lower running costs, 4x more efficiency, and a heating system that's top of its game. Just like your smartphone, we update and monitor your Cosy software over-the-air: often fixing things remotely saving you time and money.
Enjoy a gentle, steady flow of warmth all year round
Up to £9,000 Government grant available
Save on heating costs with our Cosy Octopus tariff
Cut your heating carbon footprint by around 82%
Option to pay monthly with flexible finance
Generate your own electricity with sunshine
Solar panels produce power even on cloudy days and with a battery you can store the electricity you generate during the day to use in the evening, or better yet – sell it back to the grid to earn some sunny money when rates are highest. Prices start from £6,663.
Get estimated costs and savings with our solar explorer calculator
Pair with our smart tariffs to automatically import and export energy
Sell extra energy back to the grid for profit
25 year product warranty that guarantees your system's performance over time
Option to pay monthly with flexible finance
Get energy flexibility with a battery
Gain the ability to store your own solar power and/or the cheapest and greenest electricity from the grid. Power your own home, before selling any unused electricity back to the grid when prices are higher for a profit. Prices start from £3,947.
Pair with our smart tariffs to import and export energy strategically
Rely less on the grid and more on your own power
Flexibility to sell electricity well prices are higher
Our batteries come with a 10-15 year warranty, depending on the product installed
Option to pay monthly with flexible finance
Supercharge your EV with Octopus Charge
The Octopus Charge EV charger was built and designed by our experts to sync perfectly with Intelligent Octopus Go – the UK's favourite EV tariff. By powering up at home, you can save up to 85% compared to public charging.
Why customers love it:
You could save hundreds on your fuel costs vs petrol care on Intelligent Octopus Go
Smart charging from as low as 8p/kWh
3 year standard warranty or extend to 5 years for an extra £79
Compatible with solar panel setups
8% off public charging with Electroverse on Intelligent Octopus Go
Ready to power your home the smart way?
Whether you’re starting with solar, upgrading your heating, adding a battery, installing EV charging or planning the full system, we’ll help you design the right setup.
As told by real customers
"It's massive savings"
Hear from Aaron
How a heat pump, paired with solar, an EV and Octopus smart tariffs transformed his home and bills
"Cleaner, quieter, warmer"
Hear from Linda
Why she trusts her Octopus heat pump more an a gas boiler
"It's liberating"
Hear from Sarah
A customer since 2018, Sarah chose us for her solar install because we gave her confidence every step of the way
Upgrading your home is easy with Octopus
Cosy heat pump customers on the Cosy Octopus tariff saved an average of £200 last year compared to using a gas boiler running at 85% efficiency on our standard variable tariff
This figure is based on the actual energy consumption of all Cosy heat pump customers on a Cosy Octopus tariff between 1 July 2025 and 1 July 2026, using tariff rates at the time.
We compared this to the cost of producing the same amount of heat with a gas boiler operating at 85% efficiency, priced using our Flexible Octopus (standard variable) tariff at the same time.
Savings from gas standing charges were included only for customers who had fully removed their gas supply (less than 3% of customers). Actual savings vary depending on system design, tariff choice, home insulation, and energy use.
Our typical heat pump price is £4,459, which is lower than the national average of £5,600
This is the median post-survey price from all of our heat pump quotes after the £7,500 Boiler Upgrade Scheme has been applied, between 01/09/2025 and 28/02/2026. The national average is taken from the Boiler Upgrade Scheme statistics: April 2026 – median cost of installation Q4 2025.
Cut carbon emissions by 82% with a heat pump
This is the typical reduction in heating carbon emissions using an electric powered heat pump compared to a gas boiler.
The carbon breakdown
Gas CO2 (tonnes per year) - 2.42
Electricity CO2 (tonnes per year) - 0.43
Carbon saving (tonnes per year) - 1.99
Data sources and assumptions
Gas Energy Usage (kWh) 11500 (Ofgem medium use gas usage (Jun 2026))
Heat Pump Efficiency 312% (typical seasonal coefficient of performance from a fleet of Octopus high temperature heat pumps)
Gas Boiler Efficiency 85% (The typical gas boiler efficiency from a BEIS study)
Gas fuel emissions of (gCO2/kWh) 210 (SAP 10.2)
Electricity fuel emissions of (gCO2/kWh) 136 (SAP 10.2)
Based on these sources, heat pumps typically produce lower operational emissions when heating the home than gas boilers.
For more information, explore our Octopus Cosy heat pump fleet performance dashboard.
We're the largest heat pump installer on the Boiler Upgrade Scheme
Based on Octopus benchmarking against Ofgem reports from 2024, and we've continued to grow since.
Our customers love their heat pumps!
93% of people say it's the same or more comfortable than their previous boiler
87% say it costs the same to run or less
83% say it's the same noise or less than the previous boiler
90% say it's just as easy or easier to maintain
We survey all our heat pump customers 3 months post-installation to see how they find their heat pump compared to their previous gas boiler. Survey results are taken from a sample of 2,837 customers:
Comfort: 93% of people say it is the same or more comfortable than their previous boiler.
Running Costs: 87% say it costs the same to run or less.
Noise: 83% say it is the same noise or less than the previous boiler.
Maintenance: 90% say it is just as easy or easier to maintain.
A heat pump is around 4x more efficient than a gas boiler
Heat pumps don't generate heat by burning fuel. Instead, they transfer existing heat into your home. This means they can deliver multiple units of heat for each unit of electricity used.
Based on performance data from a fleet of installed Octopus Cosy heat pumps, typical real-world seasonal performance (SPF or SCOP) is around 3.6. This means around 3–4 kWh of heat is delivered for every 1 kWh of electricity used (an effective efficiency of 300–400%). By comparison, typical UK domestic gas boilers operate at around 85% efficiency, delivering approximately 0.85 kWh of heat per 1 kWh of gas used. On this basis, a heat pump can be around 4× more efficient than a typical gas boiler.
All our heat pumps are independently tested by the Building Research Establishment (BRE), with SCOP values published on the Microgeneration Certification Scheme (MCS) product database. Actual efficiency will vary depending on the property, system design, and usage. For more information, explore our Octopus Cosy heat pump fleet performance dashboard.
The UK's most awarded energy supplier
We've won more awards for customer service than anyone else.
Heat pumps give reliable, consistent heating and hot water
The heat pump user survey report by Nesta from May 2023 summarises that "users are highly satisfied with their heat pumps". It states: "People living in England, Scotland and Wales who own their home and use a heat pump to heat it are satisfied that heat pumps are safe, reliable, quiet heat sources that are effective for space heating and producing hot water." Find the full report here.
The Cosy heat pump is quiet
Heat pump sound power levels are verified by an independent, third-party laboratory as part of the testing process for inclusion on the MCS product database. The laboratory verifies the sound power on the A-weighted decibel curve, as A-weighting closely aligns to how humans perceive "loudness".
All heat pumps are measured using EN14511 standards to ensure uniformity across manufacturers and models. Our Cosy 6 heat pump has a verified sound power level lower than many other heat pumps of the same capacity.
Heat pump heating makes the air healthier in your home
Homes with a heat pump emit far less harmful nitrous oxide (NOx) emissions than those with gas boilers and cookers, significantly reducing asthma and other respiratory illnesses. According to the Sustainable Markets Initiative Cleantech Homes report.
A heat pump can add thousands to your property value
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: Cleantech Homes report, 2024.
As of April 2025, the average house price in the UK is £265,497 according to the Land Registry. Therefore, a 2-3% value increase for an average house priced at £265,497 would be between £5,310 and £7,965.
Heat pumps typically last longer than gas boilers
The expected lifespan of a typical gas boiler is 10–15 years. A heat pump typically has a lifespan of 15–20 years, with UK government research indicating an average of around 20 years. Manufacturer Daikin reports similar ranges. Actual lifespan depends on factors such as installation quality, maintenance, usage patterns, and operating conditions.
An EV charged on Intelligent Octopus Go could save you £100s on your fuel costs vs a petrol car.
Use our EV savings calculator to compare today's fuel costs at your local petrol station to current home charging costs on Intelligent Octopus Go and get an estimate for how much you'd save. Octopus Charge is designed to work with Intelligent Octopus Go and many other chargers and EVs are compatible, too. Check if you're eligible for Intelligent Octopus Go here.
Save up to 85% vs public charging when you power up at home with Intelligent Octopus Go.
A slow or fast charge (<50 kWh) with one of the UK’s public charging points costs an EV driver 54p/kWh on average (last checked June 2026). With Intelligent Octopus Go, you smart charge from only 8p/kWh and could save 85%.
1 - 8/54 = 0.85 or 85%
Charge for up to 69% less than average price cap rates.
With Intelligent Octopus Go, you can smart charge eligible cars from only 8p/kWh. The average electricity unit rate of a standard variable tariff, based on the July 2026 Ofgem energy price cap for customers paying by direct debit, is 26.11p/kWh. This represents a saving of 69% compared to the average price cap unit rate (1- 8/26.11 = 0.69 or 69%).
Please note that savings apply to unit rates only and exclude standing charges. Standard variable rates vary by region, so your actual percentage saving may vary depending on where you live. Check the price cap for your region here.
The UK's most popular EV tariff
In their latest State of the market report, Ofgem shared that 653k domestic customers were on a Smart Time of Use EV tariff in July 2025. More than half were with Octopus, and the majority of them charged with Intelligent Octopus Go.
Last year, our customers typically saved £771 compared to our standard tariff
Over the last year (May 2025 to April 2026), customers on our fixed Intelligent Octopus Go tariff typically saved £771 compared to our standard variable tariff, Flexible Octopus. Calculations are based on comparing actual half-hourly consumption and costs on Intelligent Octopus Go against the costs the customer would have incurred for that same consumption on our Flexible Octopus tariff.
Savings for individual homes vary based on how much electricity you use for your house and EV, and how much you shift towards off-peak hours. Get a quote to compare your rates.
Trusted and recommended by thousands of happy customers
Based on feedback from 4,427 customers who had an EV charger installed between 25th January and 24th March 2026, 81% gave a 9 or 10 rating when asked how likely they were to recommend us to friends or family (on a scale of 1–10).