Winners of the 2025 Ashden Awards were revealed at the Royal Geographical Society in London on June 11.
Every year, the Ashden Awards showcase inclusive climate solutions -work that creates a fairer and more prosperous world, as well as lowering emissions and preparing communities for climate threats. This year Cotality UK won the 2025 Ashden Award for Outstanding Achievement (UK). The organisation was revealed as one of six winners at a special 25th Anniversary Ashden Awards ceremony.
All winners were chosen for their exemplary work on clean energy in either the UK or the Global South. The Awards honoured innovators from the private and non-profit sectors.
Cotality UK has won a prestigious Ashden Award for its outstanding work on retrofit software and services that support homeowners, landlords, local authorities and lenders.
In 2012 Parity Projects, acquired by Cotality in 2024, won an Ashden Award for its homeowner advice service.
Since then it has since scaled up to advise the landlords of 2.5 million homes, local authorities covering 50% English homes, and is now advising lenders such as Paragon Bank on the climate resilience and carbon emissions from its mortgage portfolio.
It has also launched the first national energy efficiency advice service for homeowners and small landlords under the Ecofurb brand, which supports the customer from free online options analysis, through independent, tailored advice to quality assured installation.
In 2024 it was acquired by Cotality, with an intent to apply the data-led approach to climate mitigation and resilience in other parts of the world.
Ashden CEO Dr Ashok Sinha said:
“The 2025 Ashden Award winners are setting us on course for fairer,greener, better future. These are proven solutions with enormous impact, led bytrue climate pioneers. In Ashden’s 25th year, we are delighted tocelebrate these inclusive and inspiring champions.
“In today’s turbulent world, our winners are illuminating the wayforward - improving lives as well as slashing carbon emissions by creating newjobs, cutting energy bills, improving health and building stronger communities.Congratulations to every one of them.”
The celebration also took place on theday of the Spending Review, and during Great Big Green Week in the UK - theUK’s biggest celebration of action to tackle climate change and protect nature,and ahead of London Climate Action Week, also in June.
The six 2025 Ashden Award winners
Three winners have been awarded for their work powering clean energy in Africa and India, and three for their work supporting clean community energy and energy-efficient homes in the UK. The headline sponsor of the 2025 Ashden Awards is Linkedin, and other sponsors include Downing, The Linbury Trust, The Waterloo Foundation and The Mark Leonard Trust. The knowledge partner is BloombergNEF.
UK winners:
· 2025 Ashden Award for Outstanding Achievement: Repowering London - transforming clean community energy in London, training young people, and innovating to help communities raise funds for their solar projects.
· 2025 Ashden Award for Outstanding Achievement: Cotality (formerly Parity Projects) – Cotality’s data tools and services help housing providers, local authorities, homeowners and others create warm, energy efficient homes.
· 2025 Ashden Award for Breaking Barriers (UK),supported by Impax Asset Management: Emergent Energy – Emergent works with councils and landlords to help social housing tenants, and others living in blocks of flats, generate energy and financial savings through rooftop solar.
Global South winners:
BURN Manufacturing, Kenya (operating Africa-wide) –manufacturing efficient and affordable cookstoves that have protected the health and environments of 28 million people.
SELCO, India– bringing solar energy to households, small businesses and hospitals. Reaching at least 8 million people over the last 30 years.
Sosai Renewable Energies, Nigeria – supporting women to become clean energy entrepreneurs, with solar minigrids and working with communities to break down gender barriers.
