Who We Are
By reducing our reliance on fossil fuels through every site we develop, we are supporting the delivery of cleaner energy and lower costs for everyone. This is the future we’re building for generations to come.
Powering a Sustainable Future
Driven by a vision of a more sustainable future, Harmony Energy has evolved into a global operation of developing, owning and operating utility-scale battery energy storage, solar farms and wind assets across the globe.
Our strong track record is built on a team of creators, pioneers and specialists. It’s our responsibility to channel our expertise and passion into accelerating the transition to a sustainable energy system.
Our projects work in harmony with nature and the local community, through setting new standards with biodiversity initiatives, community funds, and cutting-edge technology to ensure safety and sustainability at every site.
Whether you’re a landowner, investor, developer, or simply curious about the future of renewable energy, we invite you to join us on this journey of powering a sustainable future.
Peter Kavanagh
Green Leader (2025)
Bumpers BESS
Grid-Scale Standalone Energy Storage Project (2024)
Harmony Energy
Best ESG Communication (2024)
Harmony Energy
Developer of the Year (2024)
Bumpers BESS
Best UK Project Under 100MW (2024)
Akbar Lutfullah
Rising Star of the Year (2024)
Pillswood BESS
Grid-scale Standalone Energy Storage Project (2023)
Pillswood BESS
Utility Scale Storage Project (2023)
Pillswood BESS
Best Renewable Energy Project (2023)
Our Values
Harmony Energy Timeline
2010
BEGINNINGS
Harmony Energy Limited founded by Peter Kavanagh. Developed, built, own and operated 15 UK-based onshore wind assets (funded by USS and sold to Blackfinch in 2019)
2016
AN ELECTRIFYING SHIFT
Diversified into BESS. BESS side cofounded with Alex Thornton
2018
EARLY GROWTH
Developed 600MW pipeline for BESS (13 sites)
2019
PARTNERSHIP SIGNED
FRV JV to construct 4 BESS sites (140MW)
2019
DIVESTMENT
12 operating onshore wind assets sold to Blackfinch
2019
NEW ZEALAND
New Zealand large-scale solar business established and led by Pete Grogan
2020
FIRST BESS LIVE
Holes Bay (7.5MW / 15 MWh) goes live using Tesla and Autobidder (First in UK & EU to use 2-hour duration BESS)
2021
FIRST SOLAR / BESS SOLD
First Solar / BESS (30MW) twinned site sold to BayWa and 49MW Salisbury BESS site sold to SSE
2021
LONDON STOCK EXCHANGE
Successful IPO of HEIT plc with £210m market cap
2021
TAGENERGY PARTNERSHIP
TagEnergy JV agreement to construct 3 BESS sites (98MW)
2022
FRANCE
French business established and led by Andy Symonds and Clément Girard
2022
EUROPE’S BIGGEST BESS ONLINE
Pillswood (98MW) – Europe’s Largest Battery Energy Storage System – energised
2023
POLAND
Polish business established and led by Dariusz Kolasiński and Michał Maćkowiak
2023
GERMANY
German business established and led by Stefan Tait and Tobias Kriete
2023
SOLAR SOLD TO ATRATO
Atrato complete acquisition of ready-to-build 50MW solar project
2023
GROUNDBREAKING SUMMER
7 BESS sites energised (317MW); including two biggest in Europe
2024
JV ESTABLISHED
First Renewables JV for development of New Zealand’s largest solar farm
2024
SUCCESSFUL REFINANCE
HEIT successfully refinances its existing debt arrangements
2024
ITALY
Italian business established and led by Andy Symonds and Clément Girard
2024
FRANCE’S LARGEST BESS
Harmony start building Project Cheviré
2024
FIRST ENVISION BATTERIES ENERGISED
HEIT portfolio reaches 100% operational with double project energisation at Wormald Green and Hawthorn Pit
2024
BESS SOLD TO ALPIQ
Alpiq acquires 100MW French BESS project
2024
MULTIPLE AWARD WINS
Harmony Energy awarded multiple awards including Developer of the Year at the Energy Storage Awards, Grid-Scale Standalone Energy Storage Project of the Year, Best UK Project Under 100MW, ESG Communication and Rising Star
2024
BESS SOLD TO EDF
EDF acquires 200MW Polish BESS project
2025
NEW ZEALAND’S LARGEST SOLAR
Construction begins on New Zealand’s largest solar farm
2025
GROUNDBREAKING SALE
Foresight Group acquires Harmony Energy Income Trust (HEIT Plc). HEIT contains 8 BESS sites developed by Harmony Energy Ltd
Join the team
If you’re interested in working for a company that’s leading the change, now is your chance to join us in powering a sustainable future.