Ampyr Distributed Energy secures equity investment from Stonepeak and AGP
This article covers Ampyr Distributed Energy, a distributed energy startup, securing an equity investment from Stonepeak in a growth funding round to accelerate the rollout of onsite renewable energy across the UK and Europe. The funding is intended to scale ADE’s project pipeline and operational capacity to support commercial and industrial customers in accessing onsite renewable power and to bolster decarbonisation and energy resilience.
Ampyr Distributed Energy (ADE) has secured an equity investment from Stonepeak in a growth funding round to accelerate the rollout of onsite renewable energy across the UK and Europe. The deal, announced by the firms today, sees AGP retain an interest in ADE and is intended to speed development of the platform’s pipeline and operational capacity.
Why it matters
The partnership signals growing institutional interest in distributed energy as businesses seek to cut costs, improve resilience and meet decarbonisation targets. ADE already has a large project pipeline and an operating footprint that, if scaled, could shift how commercial and industrial customers source power. For the UK market, more capital into onsite renewables also speaks to efforts to reduce reliance on volatile wholesale markets and imported gas.
Inside the product
ADE funds, builds, owns and operates onsite renewable infrastructure for commercial and industrial customers via long-term power purchase agreements. Since launching in 2024 with AGP, the platform has developed a pipeline of more than 1GW and has contracted about 250MW of projects across roughly 200 sites. ADE’s model removes upfront capital requirements for customers and packages capital, project delivery and operations into a single provider — a common approach used to accelerate commercial uptake of rooftop and behind-the-meter generation.
Who are the investors?
Stonepeak, an alternative investment firm focused on infrastructure and real assets, is the incoming equity investor. The firm manages roughly £69.5 billion in assets and has dedicated activity across digital infrastructure, energy transition and transport. AGP, which helped launch ADE in 2024, will retain an ownership stake and continue supporting the platform.
Stifel acted as sole financial adviser to ADE on the transaction. Legal advisers included Ashurst Perkins Coie for Stonepeak and Corrs Chambers Westgarth for AGP.
In the announcement, Hajir Naghdy, Senior Managing Director at Stonepeak, said:
Finding secure, reputable sources of distributed energy is becoming increasingly critical for businesses in Europe today. With its history of successful developments and transactions, diversified portfolio, strong cashflow, and actionable pipeline, we are confident that ADE is well-positioned to capitalize on these tailwinds. We look forward to building on our existing partnership with AGP across their business verticals including energy transition and sustainable community infrastructure through this investment and working closely with the ADE team to bring their business to the next level.
In the announcement, Brad Hopkins, Partner and Co-Head of Energy at AGP, said:
We are very pleased to welcome Stonepeak as an investor in ADE alongside AGP. Their investment is a strong endorsement of the business and the progress the team has made since launch, and reflects our shared conviction in ADE’s long-term growth.
Distributed energy is an exciting and rapidly growing sector, with significant potential across the UK and Europe. We look forward to continuing to support the business alongside Stonepeak as it enters its next phase of growth.
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Founder perspective
In the announcement, John Behan, CEO of AMPYR Distributed Energy, said:
Stonepeak investing into ADE is a significant milestone, and their investment is a testament to ADE’s successful execution and increasing scale. Their backing, deep infrastructure and operational expertise, and long-term approach give us an exceptional platform for the next stage of our growth. I’m incredibly proud of what our team has built over the past two and a half years, with the support of AGP, and excited about what we can now achieve with Stonepeak.
Businesses across Europe are moving to take control of their energy, cutting costs, securing supply and decarbonising operations. As such, demand for distributed energy has never been stronger. This investment gives us the firepower to meet that demand at scale, accelerate our pipeline, and help more businesses access affordable, reliable renewable energy.
Behan’s comments underline the commercial focus: ADE positions itself as a capital and delivery partner for customers that want to shift energy from a cost centre to a managed asset without taking on project financing.
The bigger picture
The deal comes as UK and European policymakers press ahead with policies to accelerate clean power and energy efficiency. For businesses, onsite generation plus long-term PPAs can offer a hedge against price volatility and a route to meeting corporate net-zero commitments. Institutional capital flows like this one also reflect a maturation of the distributed energy market, where operational scale and contract-backed cashflows attract infrastructure investors.
For the UK energy sector specifically, more project funding and operational capacity could help reduce strain on the grid during peak events and support local resilience. The partnership also highlights how global infrastructure investors view distributed energy as a distinct investment class within the broader energy transition.
The transaction adds to a wider trend of large institutional investors backing UK and European energy platforms that bundle capital, delivery and operations — a segment likely to see continued attention from energy investors as corporates and public bodies pursue decarbonisation and security of supply.
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