Amp-ing up savings: Tenant Power arrives in Wales, cutting energy bills for social homes by £200 a year
United Welsh becomes Wales’s first housing association to roll out Octopus Energy’s ground-breaking Tenant Power tariff
UK’s first green tech energy tariff that rewards both social housing landlords and tenants
Slashes electricity bills for social housing tenants by around £200 a year
Helping green home upgrades deliver real returns for landlords
London/Caerphilly, 28th May 2026 - Octopus Energy, the UK’s largest energy supplier, has partnered with United Welsh to bring its groundbreaking Tenant Power tariff to social homes in Wales.
Tenant Power is the UK’s first green energy tariff where both social housing landlords and tenants share the financial rewards of smart energy tech.
Buildings equipped with solar panels and a compatible battery system can generate their own renewable energy. Any excess energy is stored in the battery and automatically sold back to the grid at peak times, helping to balance the grid and provide a return for landlords.
The result: tenants see their electricity unit rate bills fall by 30% – saving around £200 a year – compared to a standard variable tariff*, while landlords earn revenue, making clean tech upgrades a smart long-term investment**. Adding a heat pump into the mix could help Tenant Power tenants save even more on their energy bills.
This win-win model removes one of the main barriers to green investment in social housing, paving the way for cleaner, fairer and cheaper energy for all.
United Welsh is leading the way as the first housing association in Wales to roll out the pioneering tariff. The first phase covers four homes, with installations already finished and the first tenants live on Tenant Power.
The news comes as interest in low carbon tech surges, with households looking to escape energy market volatility driven by the Middle East conflict. Data from Octopus Energy shows heat pump sales up 103%, solar panel sales up 78%, and EV charger enquiries up 42%, as more Brits try to boost their energy independence.***
Octopus Energy aims to have 10,000 homes committed to Tenant Power by the end of 2026.
Nigel Banks, Zero Bills Director at Octopus Energy, said: “Solar panels and batteries should be a no‑brainer for social housing – but until now the economics haven’t worked well enough.
“Tenant Power solves this by cutting tenants’ bills while giving social housing landlords a return for investing in green tech.
“By partnering with United Welsh, we’re delivering more affordable, greener living to social homes in Wales, making a real impact on communities and people’s pockets.”
Richard Mann, Group Chief Executive at United Welsh, said: “At United Welsh, we are committed to providing high-quality homes and supporting residents with the cost of living. Investing in low carbon technologies like solar panels and batteries helps residents to lower their energy bills in the long-term, while supporting the drive towards decarbonisation.
“In the last four years, supported by the Welsh Government’s Optimised Retrofit Programme, we have invested over £14 million to improve the energy efficiency of our homes through measures such as new insulation, efficient heating systems and renewable energy installations.
“Initiatives such as the Tenant Power tariff are an innovative way to fund more property upgrade work while residents benefit from lower bills.”
Richard, Tenant Power customer from Halifax, said: “I love that my bills are lower thanks to Octopus’ initiatives – the process was quick and easy and it really makes a huge difference.
“It's a bonus knowing I’m making the most of the sunshine with solar panels, and doing something good for the planet too.”
More information on Tenant Power and how to sign up can be found here.
-ENDS-
Notes to editors:
*The savings figure is based on a 30% discount to the current Octopus SVT unit rate for electricity in the UK as of May 2026. Savings are also based on an average energy consumption for a typical household according to Ofgem, the tenant remaining on the Tenant Power tariff, and the tenant allowing Octopus Energy to smart control the solar and battery system.
**Landlords receive a 12-month fixed return based on total MCS solar energy generation, the size of the battery installed and the technology functioning to an agreed level.
***All sales figures are taken from internal Octopus data comparing sales from March 2026 to February 2026.
Press Contacts
Octopus Energy Group
press@octoenergy.com
+44 (0)20 4530 8369
Tenant Power Contacts
United Welsh Contacts
communications@unitedwelsh.com
About Octopus Energy Group
Octopus Energy is a global clean energy and technology business, driving the affordable, green energy system of the future. Under its own retail brand, Octopus delivers world-class customer service and cutting-edge energy products to 11 million households globally.
The company is driving the electrification of heat and transport through smart tariffs and innovative clean tech, with operations spanning 27 countries and the entire energy value chain. It operates a £7 billion renewables portfolio as well as thriving EV leasing, heat pump, and solar businesses.
Backed by pension funds, investors and energy giants, Octopus Energy Group businesses deliver cheaper, greener energy and cutting-edge tech to countries and customers worldwide.
For more information, check out our website.
About United Welsh
United Welsh is a not-for-profit organisation providing homes and related services in South Wales.
We are passionate about building homes, creating communities and transforming lives.
We look after over 6,800 homes for people across 11 local authority areas, and our services help thousands more in our communities.
The United Welsh Group includes our repairs service Celtic Horizons; timber frame home manufacturer Celtic Offsite and Harmoni Homes, which supports people to fulfil their dream of buying a property.