EQUITIX: Patient Capital, Purposeful Returns
By investing directly into energy transition projects, Equitix is helping to support the decarbonisation ambitions of businesses across its portfolio. As one of the UK’s leading investors in renewable energy, it combines long-term capital with an active approach to ownership and management, creating sustainable value over time. Dr Egan Archer, Equitix’s Head of Power and Managing Director in the Asset Management division talks to Energy Focus about the investment philosophy that underpins the firm’s approach and why its patient, disciplined investment strategy is central to delivering lasting results.
Supported by:
Interview with Dr Egan Archer, Managing Director, Head of Power, Asset Management
Energy transition investment is not a sprint. The projects that support the energy transition — offshore wind farms operating for decades, energy-from-waste facilities processing millions of tonnes of material each year, hybrid renewable platforms looping solar, wind and battery storage into something resembling baseload — demand a kind of financial commitment that most investors are not structured to provide. They demand patience, staying power, and the willingness to follow a project not just from acquisition but from origination through to the end of its operational life. Equitix has been doing exactly that since 2007, and the pipeline it has assembled in the past twelve months suggests the business is moving faster than ever.
In 2023, Energy Focus shared the strategic framework that had taken Equitix to more than 300 assets under management, a total electricity generating capacity of 7.1GW, and a position as one of the largest infrastructure investors in the UK. Since then, the company has streadily grown its portfolio across a diverse range of sectors and remains extremely ambitious.
Dr Egan Archer, a chemical engineer by training, a PhD-holder in fluid dynamics, who has spent more than 25 years finding the logic in how energy systems work and how capital can make them work better – explains that demand is booming.
He oversees a significant book covering onshore and offshore wind, solar, transmission, hydro and energy-from-waste. “Since 2011/12, the sector I manage now invests around £5 billion AUM in energy transition and it is now one of the biggest sectors in the business,” he says, “likely to continue to grow given the demand for ways we generate energy and manage power in the long-term.”
The Equitix philosophy is built on longevity. Some assets in the portfolio have been held for more than 20 years. “We manage projects for patient, long-term capital,” Archer explains. “In some cases, we look at opportunistic divestments in projects where a sector could become less interesting for us as time progresses, but we typically manage capital for the long-term.”
That position addresses risk management while adhering to an investment philosophy grounded in the belief that the most significant returns — financial and environmental — come from staying close to assets through their entire lifecycle, understanding what drives their performance, and building the operational expertise that allows those assets to grow.
Industry research has described renewable energy infrastructure as one of the most powerful investment opportunities of the current decade, noting that long-duration, yield-generating assets with inflation linkage are exactly what institutional capital needs as it moves away from traditional fixed income. The renewable energy sector – with its regulated revenue, long-term power purchase agreements and the structural tailwind of decarbonisation policy – is well suited to that notion. Equitix is leading the way with projects that will define the future.
THE VIRIDOR DEAL
The transaction that most clearly illustrates Equitix’s ambition and the scale of its conviction in the energy-from-waste sector is the Viridor deal, announced in December 2025. Equitix signed an agreement to acquire a substantial minority stake in Viridor Group — the UK’s leading operator of energy-from-waste facilities — from KKR, with a path to acquire up to 50%. This builds directly on Equitix’s existing 35% shareholding in Viridor’s Energy division. Viridor operates 12 UK energy-from-waste facilities with two additional plants currently in development, processing 3.4 million tonnes of waste and recycling a year. Its advances in carbon capture and storage places it at the frontier of what the circular economy can deliver at industrial scale.
Archer is clear about the importance of this deal. “It is the largest transaction we have undertaken to date, and we regard it as a generational business with exceptionally long-life operations that delivers two essential services. First, it processes waste — an often-overlooked function, yet one that is fundamental to the functioning of the economy. Second, it diverts waste that would otherwise go to landfill, where it would produce substantial greenhouse gas emissions, and instead converts it into renewable energy. Around 50% of that material is renewable.”
The business is also one that evolves. “Overtime, it becomes more sustainable through carbon capture and the organic growth that comes with managing waste in a safer environment.”
Alongside Viridor, the Westfield Energy Recovery Facility in Fife continues to progress as a milestone in how Equitix approaches energy-from-waste at the community scale. Processing 240,000 tonnes of non-recyclable residual waste annually, it produces 23MW of low-carbon electricity while removing material from landfill — a model that illustrates how the environmental and commercial cases align when investment is patient and purpose-driven.
HYBRIDISING EUROPE
While the UK energy-from-waste portfolio anchors one pillar of Equitix’s current activity, the European renewable energy strategy is developing rapidly across multiple markets. Spain has become a particularly important theatre of operation. In December 2025, Equitix completed the majority acquisition of two Spanish wind farms — El Castillar and Joluga — with a combined capacity of 87MW, with plans to hybridise both sites by adding solar PV and battery storage. This represents the first deal completed under a 1GW framework agreement with Capital Energy, reinforcing the scale of Equitix’s ambitions in Spain’s energy transition. A strategic partnership with TCorp, announced in July 2025, further deepens the Spain platform, bringing institutional co-investment strength into a market that is becoming central to Europe’s clean energy buildout. In Italy, Equitix has also increased its stake in a joint venture with ACEA, strengthening its position in one of the continent’s most active solar markets.
The team’s focus on hybridisation it is a direct response to one of the structural limitations of irregular renewable generation.
“We are exploring how, in certain markets, battery storage can help transform variable wind and solar output into something closer to a baseload profile,” he says.
“Generation that is disconnected from demand ultimately squanders resources and undermines returns; storage fundamentally transforms that dynamic. Rather than producing solar or wind energy at moments when demand is absent, the question is how to align generation more closely with our customers’ needs. Our aim is to be in a position to meet that demand, not simply to generate power when conditions allow. That is where the hybrid model becomes critical. It reflects our broader ambition: to create a stable platform for patient investors, while continuing to drive organic growth and innovate in order to stay ahead,” says Archer.
Generation without demand alignment wastes resource and suppresses returns; storage changes that equation entirely. “Instead of generating energy from solar radiance or wind yields when it is not needed, how do we balance that energy generation with our customer’s demand? We want to be in a position to meet that demand rather than just generating when it is available. That is where the hybrid structure comes into play and our view is about creating a stable platform for patient investors while building organic growth and innovating to stay ahead,” says Archer.
OFFSHORE AND BEYOND
The offshore wind chapter of Equitix’s story continues to grow. In March 2025, the company — in consortium with the Kyuden Group — acquired the Seagreen Phase 1 offshore transmission assets from Seagreen Wind Energy Limited, investing into what is the world’s deepest fixed-bottom offshore wind farm, located off the Angus coast. The Seagreen development, with a total capacity of 1,075MW when fully operational, is a defining piece of UK energy infrastructure.
Separately, Ofgem named Equitix as preferred bidder in October 2025 for the Neart na Gaoithe Offshore Transmission Owner project — a c. £450 million tender round 10 transaction that cements Equitix’s position as a dominant force in the UK’s offshore transmission market.
The sheer breadth of the pipeline — energy-from-waste, offshore wind generation, offshore transmission, hybrid solar and wind in southern Europe, Italian solar — reflects a business that is focused on creating calue across its portfolio rather than operating within narrow sector silos. Archer sees this as essential to maintaining an edge in an investment environment defined by volatility. “Large businesses have long understood that innovation is necessary simply to preserve their position. We take a similar approach to our investments: we back stable businesses in order to meet our investors’ long-term objectives, but we also push ourselves to keep evolving so that we can continue to innovate over the much longer term. That principle remains fundamental to our thinking,” he says.
The broader context of the energy transition only intensifies that imperative. Demand for clean power is accelerating across every front — from the expansion of AI and data centres to vehicle electrification and industrial decarbonisation. “The energy transition sector is booming,” Archer says. “For all the discussion about a potential return to fossil fuels, the global momentum behind the transition remains unmistakable, including in the United States. There is a growing recognition that meeting future energy needs will require a decisive shift towards more sustainable sources.”
The infrastructure required to meet that demand will take decades to build, and it will require institutions willing to stay the course. With £5 billion in energy transition assets under management, a portfolio spanning the full breadth of the clean energy system, and a team that thinks in decades rather than quarters, Equitix remains one of the most important backers in energy transition across the globe.