The environmental transition is entering a new phase increasingly defined by capital deployment, rather than only by policy ambition. After years of underinvestment in energy systems, industrial assets and resource infrastructure, governments and companies are being forced to rebuild parts of the physical economy. Electrification, resource efficiency, and water resilience all require large-scale investment, creating what increasingly resembles a new global capex supercycle.
Unlike earlier phases of the transition, this investment cycle is no longer driven solely by subsidies or climate commitments. As environmental solutions become more cost-competitive and resource constraints intensify, economics are increasingly justifying investment on their own. Around $5 trillion was deployed globally across energy transition infrastructure between 2020 and 2024[1], with investments expected to accelerate further over the next decade. The scale of investment required extends far beyond renewable power generation alone.
Unlike previous investment cycles, this one is broader, longer dated and more resilient. It spans energy, industry, materials, utilities and technology. It is anchored in physical infrastructure with multi-decade lifespans. And it is increasingly supported by economic necessity, rather than subsidies alone.
For investors, this creates a structural opportunity. Decarbonisation, circularity and water security all require sustained capital deployment, benefiting companies with strong balance sheets, technological leadership and exposure to long-duration growth drivers.
Renewable energy remains central to the transition, but the investment cycle now extends far beyond power generation itself:
What matters for investors is that these systems are increasingly interconnected. As electricity demand rises, grids must expand and modernise; as resource constraints intensify, companies must improve material efficiency; as water scarcity becomes more acute, industrial users need systems that reduce consumption, recycle water and improve operational resilience. This is why this cycle should be understood not as a single theme, but as a reallocation of capital across the foundations of the global economy.
Within Candriam’s Thematic 2.0 framework, the environmental transition creates a layered opportunity set across different stages of maturity, capital intensity and return profile. Rather than concentrating value in one segment, the transition redistributes economic relevance across the value chain, creating multiple entry points for investors.
provide the components, equipment and services that allow environmental solutions to be deployed at scale. Much of the value creation may emerge from the companies supplying the infrastructure behind the transition: grid equipment, power electronics, industrial automation, semiconductors and efficiency software.
Examples include manufacturers of grid and transmission equipment, suppliers of power electronics and semiconductors, producers of recycling and material-recovery machinery, and providers of sensors, software and control systems that optimise energy and water efficiency.
operate in established industries but improve resource productivity by reducing energy, material or water intensity. These companies can turn environmental pressure into operational leverage, benefiting from lower input costs, reduced volatility and improved returns on capital.
Examples include industrial companies improving process efficiency, materials producers reducing dependence on virgin inputs, and water-intensive businesses adopting reuse, recycling and closed-loop systems.
reflect the maturation of the transition.
As electrification, circularity and water management converge, value increasingly accrues to companies capable of designing, building and operating complex infrastructure over long time horizons. These include power and distribution network operators, environmental and waste-service providers, engineering firms and companies delivering integrated energy, water and industrial solutions.
The capex cycle is also changing how companies view environmental investment. Measures that were once treated primarily as compliance costs are increasingly seen as sources of efficiency, resilience and competitive advantage.
Companies adopting energy-efficient processes, circular business models or water-saving technologies can reduce input costs, limit supply-chain risk and improve operational continuity. This is particularly relevant in sectors where access to reliable power, materials or water is becoming a strategic constraint.
Semiconductor manufacturing offers a clear example. Advanced chip production depends on highly controlled environments, stable cooling systems and significant water use. Efficient cooling, heat exchange and water recycling are not peripheral sustainability measures; they are critical to productivity, reliability and cost control.
This illustrates how environmental infrastructure is becoming embedded in industrial competitiveness itself. In many sectors, sustainability investment is no longer peripheral, but it increasingly determines operational resilience and production capacity.
As demand for semiconductors rises, driven by AI, electrification and digital infrastructure, these systems become part of the investment case for environmental solutions.
Not every company exposed to the transition will benefit equally. As in previous infrastructure and industrial investment cycles, competitive positioning and capital discipline are likely to determine where value ultimately accrues.
We believe that the most attractive opportunities should be found in companies that combine structural demand with strong fundamentals: scalable solutions, technological leadership, pricing power, high barriers to entry and disciplined balance-sheet management. In some areas, we expect growth to come from accelerating investment. In others, value may come from margin resilience, recurring revenues or long-term infrastructure contracts.
This multi-layered structure allows us to build diversified exposure across different stages of the transition, balancing growth-oriented opportunities with more defensive, cash-generative profiles. It also reflects our long-standing experience investing in environmental solutions across climate, circular economy and water efficiency.
The environmental transition is no longer only about ambition. It is increasingly about implementation. Energy systems need to be rebuilt, industrial processes need to become more efficient, and resource infrastructure needs to be upgraded.
That creates a multi-decade investment cycle with broad implications for capital allocation. For long-term investors, the capex supercycle represents an opportunity to align portfolios with the physical transformation of the global economy — and to identify the companies best positioned to enable it.
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