Strategies

Energy Transition

Equity and credit investments in infrastructure supporting the transition of energy systems to low-carbon technologies

Approach

Investing in growth sectors of the energy transition

As global energy systems evolve, the transition to renewables and the technologies enabling it are reshaping power markets. We deploy capital into three core areas that we believe offer the potential for strong financial returns, while supporting the transition to a more sustainable world.

As renewable generation grows, we expect demand for battery energy storage to increase significantly.

Battery storage helps balance the grid by storing electricity when it is abundant and releasing it when needed.

Globally, battery storage capacity will need to expand around sixty-fold by 2050 to support the transition to net zero. That is equivalent to a 17% compound annual growth rate in installed capacity from 2023 to 2050.

Data: IEA 2024; BloombergNEF 2024

Wind is one of the most compelling areas for renewable infrastructure investment, supported by proven technology, falling costs and strong policy frameworks across Europe, North America and other mature markets.

Worldwide, installed wind capacity has grown more than twenty-fold since 2000, making it a central pillar of clean electricity generation and a key driver of decarbonisation

Data: IEA 2024; BloombergNEF 2024

Solar is one of the world’s most established and rapidly deployed renewable technologies. In just 15 years, it has grown from the smallest to the largest source of new electricity capacity and now delivers some of the cheapest power ever recorded.

Technical innovation has made solar one of the most cost-competitive forms of generation, meaning new projects can now be economically attractive without reliance on government subsidies.

Data: IRENA 2024; Bloomberg NEF 2024

Platform

Energy Transition at Gresham House

Top 10

European Energy Transition Manager

£2.6bn

Energy transition AUM

15+ years

Specialist expertise in energy transition

Largest

Operator of Battery Energy Storage Systems in Europe1

Figures as at 30 June 2026. 1Aurora Energy Research 2025.

Watch

How revenue stacking works

Battery storage assets generate revenue by combining multiple income streams and adapting the mix as markets evolve. This is known as revenue stacking.

Building and actively managing this combination of revenue streams can materially influence investment outcomes.

Strategies

Energy Transition Solutions

Battery Energy Storage (Europe)

Complementary return drivers to renewable generation

Opportunities across European markets, asset locations, storage durations and revenue structures to optimise revenues from providing power system flexibility.

Focusing on utility-scale assets that support renewable energy integration and grid resilience. Diversification across markets and revenue streams underpins portfolio construction.

Energy Transition Credit (Europe)

Addressing gaps in the underserved mid-market

Infrastructure credit opportunities that support Europe’s energy transition, focused across energy efficiency, distributed energy, utility-scale renewables and battery storage.

Drawing on over a decade of credit investment experience, our asset-based strategies span senior-secured and higher-yielding opportunities, addressing different risk-return profiles.

Asia Energy Transition

Targeting fast-growing opportunities in Southeast Asia

Opportunities where rapid digitalisation, urbanisation and decarbonisation are accelerating the shift to cleaner power in markets such as Malaysia, Indonesia, Vietnam, the Philippines and Thailand.

Investments across utility-scale and on-site renewable energy generation while capturing emerging energy storage and demand-side opportunities in electrification and energy services, such as clean transport, industrial decarbonisation and energy efficiency.

How to invest

For our listed Energy Transition vehicles, visit the relevant fund page for information on how to invest.

Other opportunities, including co-investments and select schemes, are available to professional investors. Contact us to learn more about current opportunities.

Education

Why invest in Energy Transition and why now?

We believe energy transition infrastructure investments offer a compelling mix of long-term financial opportunity and positive environmental and social outcomes.

Asset-backed investments offer the potential for downside protection, long-term capital growth and returns with low correlation to the broader economy.

Growing electricity demand, decarbonisation efforts and energy security concerns drive demand for decentralised, low-emission energy infrastructure.

Active management and robust commercial structures can support long-term cash flows and asset value, while contributing to the decarbonisation of energy systems.

Energy Transition FAQs

Common questions on energy transition and the investment case for renewable generation and battery energy storage.

What is energy transition?

Energy transition is the shift from fossil fuels towards a lower-carbon energy system. It includes renewable electricity generation, the electrification of transport and other sectors, and the infrastructure needed to support these changes.

What is driving the investment case in energy transition?

Rising electricity demand, decarbonisation and the need for energy security and resilient infrastructure are driving substantial investment requirements across generation, storage, energy efficiency and electrification. Private capital plays an important role in financing this transformation. Opportunities arise where established technologies, supportive market frameworks and robust business models translate these structural needs into commercially viable projects.

What investment opportunities does the energy transition create?

The opportunity extends well beyond renewable electricity generation. Battery energy storage systems (BESS) provide flexibility that supports renewable energy integration and grid stability. Electrification enables electricity to replace fossil fuels in transport, heating and industrial applications, while energy efficiency measures reduce the energy needed to deliver the same services.

The broader path to net zero also includes decarbonising hard-to-abate sectors and addressing residual emissions through carbon capture and storage and carbon removal technologies such as direct air capture. Technology maturity and commercial viability vary across these applications, many of which require further development or deployment at scale. These areas are currently outside our active investment focus.

How much capital is being invested in the energy transition?

According to BloombergNEF, global energy transition investment reached a record $2.3 trillion in 2025, an increase of approximately 8% on 2024. Investment grew at a compound annual rate of approximately 19% between 2020 and 2025. These figures cover a broad range of sectors, including renewable energy, storage, power grids and electrified transport, and illustrate the scale of capital being deployed across the transition.

What are the portfolio benefits of energy transition?

Energy transition investments can offer long-term income, capital growth and diversification through exposure to physical infrastructure. Some revenues may be contracted or linked to inflation, although these characteristics vary by asset and investment strategy.

What energy transition allocation should investors consider?

There is no single right allocation. It depends on an investor’s objectives, investment horizon, liquidity needs and wider portfolio. Renewable generation and battery storage have different risk and return characteristics, making the mix of assets an important consideration.

Our analysis suggests a dedicated battery storage allocation can offer a return driver that differs fundamentally from renewable generation, earning from volatility, scarcity and flexibility rather than output, providing a broader opportunity set for allocators seeking this as a distinct exposure.

What is supporting the case for UK renewables and battery storage?

Wind is the UK’s most established renewable technology by electricity generated, accounting for around 29.5% of annual supply, with the country’s plentiful wind resource making many projects economically viable without government subsidy. Solar is also well established, contributing around 5.2% of annual supply, with its biggest impact during the summer months.

As renewable generation grows, battery storage is essential for balancing supply and demand across the electricity grid. The UK currently has approximately 7.6GW of installed battery storage capacity, but significant additional capacity will be needed to keep pace with the growing share of renewables in the energy mix.

What are the main investment risks?

Risks include changes in electricity prices, regulation and policy, alongside construction, operational and technology risks. Returns also depend on how revenues are generated and contracted, making asset selection and active management important.

Insights

Latest news and thinking on Energy Transition

Get in touch

Whether you would like to explore our investment strategies, discuss your objectives or learn more about Gresham House, our team is here to help.

Key risks

The value of your investment and the income from it is not guaranteed and may fall as well as rise. As your capital is at risk you may get back less than you originally invested. Past performance is not a reliable indicator of future performance.