Financing Coal Phase Out: A Stress Test for Transition Finance

Coal phase‑out has become one of the clearest stress tests for transition finance. Despite record global investment of US$2.4 trillion in 2024, capital continues to bypass many coal‑dependent emerging economies. Low‑carbon alternatives are available, but financial systems are struggling to manage stranded‑asset risk, long payback periods, and the social and regional impacts of early coal retirement. In Latin America, where coal plays a smaller but highly concentrated role in specific power systems and regions, the challenge is less about ambition and more about designing financial architectures that can deliver early retirement while supporting economic development and social stability.

This challenge is particularly visible in efforts to phase out coal. While the technical pathways to replace coal‑fired power generation are well understood, progress on early retirement has been uneven. The issue is no longer whether coal can be replaced, but whether countries can mobilize the right mix of finance, policy clarity, and institutional coordination to do so at the scale and pace required, without undermining energy security or development objectives.

Coal assets often persist not because they are efficient, but because they are fully amortized, embedded in long‑term contracts, and closely linked to employment and regional economies. Retiring them ahead of schedule introduces stranded‑asset risk and distributional impacts that private investors are rarely willing — or able — to absorb on their own. As a result, coal phase‑out has become less a question of technology choice and more a question of how risks and costs are allocated across public and private actors.

Moreover, as we are witnessing with the oil supply disruption currently taking place, global energy shocks do not affect all countries in the same way. While these disruptions can strengthen the investment case for renewables in advanced economies, in many developing countries they can have the opposite effect. Where energy security concerns are acute and access to affordable capital is limited, coal‑based power generation may remain the cheapest and most secure short‑term option. Without targeted transition‑finance instruments to address financing costs and risk, shocks that accelerate decarbonization in advanced economies can inadvertently reinforce coal dependence elsewhere.

In addition, recent discussions on transition finance increasingly point to the same conclusion: credible coal phase‑out requires credible national transition strategies paired with investable project pipelines. Governments play a decisive role in setting direction through long‑term policy clarity, coordination across ministries, and alignment between climate targets and energy planning. Where this direction is weak or inconsistent, capital markets tend to price uncertainty conservatively, raising financing costs and delaying action.

Public finance therefore has a catalytic role to play. Guarantees, concessional lending, and equity instruments can help reallocate risk, making early retirement and replacement investments viable. When used strategically, these tools do not crowd out private capital; they enable it by improving risk‑adjusted returns and accelerating learning across markets.

Chile’s experience demonstrates how this can work in practice. Rather than relying solely on regulatory mandates, the country combined clear phase‑out signals with contractual and financial solutions that aligned incentives among utilities, investors, and the public sector. By addressing power purchase agreements, managing system reliability, and deploying public finance to reduce transition risk, Chile transformed coal retirement from a political aspiration into a sequence of bankable transactions. One example was a blended financing package of US$152.9 million, including US$110 million from IDB Invest, US$15 million from the Climate Investment Funds’ Clean Technology Fund (CIF-CTF), and US$29.7 million in sponsor equity. This kind of structure illustrates how concessional and commercial capital can be combined to make early coal retirement investable while supporting the build-out of replacement clean energy assets[1].

Crucially, coal phase‑out cannot be treated as a narrow generation‑sector intervention. It creates system‑wide implications for grids, storage, transport infrastructure, and public services, all of which require parallel investment. Financing strategies that focus only on replacing generation capacity risk creating bottlenecks elsewhere in the system, undermining reliability and slowing the overall transition. Thus, systems-led strategies are key for jurisdictions to develop tailored solutions for accelerating energy transitions while promoting economic prosperity at the local level. The Carbon Trust’s Greenprint is an innovative approach that can help countries with these systemic efforts, as it aims to develop comprehensive solutions integrating coal transition, renewable energy, and grid expansion.

Multilateral development banks and national development banks are central to addressing this coordination challenge. By anchoring interventions in country‑led investment plans aligned with Nationally Determined Contributions, they can help structure coherent pipelines contributing to climate objectives but also to development-relevant ones like inclusive growth, structural transformation, fiscal sustainability, and social outcomes. This approach also reduces fragmentation across instruments and institutions, increasing the effectiveness of scarce public capital.

Beyond development banks, central banks and financial regulators are increasingly relevant actors. As transition risks translate into financial‑stability risks, fiscal policies and supervisory guidance can influence the cost of capital for transition‑aligned investments. Managing coal phase‑out in an orderly manner is therefore not only a climate objective, but a macro‑financial one.

Experience on the ground in Latin America reinforces these lessons. In Colombia, for example, with funds from Coal Asset Transition Accelerator (CATA), the Carbon Trust supported a power generation company in developing the pillars of a company‑wide decarbonization strategy, with a detailed focus on transitioning a specific coal‑fired power plant. The work assessed clean‑energy replacement pathways, including solar, wind, storage, and geothermal, using multicriteria and economic analysis to accelerate coal retirement. Importantly, it combined technical feasibility with project‑level financial and economic analysis, evaluating costs, risks, and implementation pathways to inform decision‑making and stakeholder discussions. This type of integrated analysis is increasingly essential to move coal phase‑out from strategy to execution.

The social dimension of coal retirement is equally critical. Early plant closures affect workers, suppliers, and entire regions. If these impacts are not addressed proactively, they can undermine political support and delay implementation. Financing models that integrate reskilling, regional economic diversification, and local investment alongside asset retirement are more likely to deliver durable outcomes.

Blended finance structures can be particularly effective in this context. By combining public and private capital, they can support both infrastructure investment and social transition measures, while building financing solutions that reduce reliance on concessional resources over time. Debt instruments, including sustainability‑linked and transition bonds, can also play a role when designed around measurable, outcome‑based indicators such as emissions avoided through early coal retirement or clean capacity development.

Ultimately, financing coal phase‑out is not about eliminating assets, but about reallocating capital under conditions of uncertainty. The rapid growth in global transition finance shows that capital is available, but coal phase‑out exposes whether financial architectures are capable of managing risk, coordinating across institutions, and aligning climate objectives with development priorities. Where governments provide clear direction and public finance is deployed strategically to crowd in private investment, early coal retirement becomes feasible without undermining economic or social stability. In that sense, coal phase‑out is less an end than a proving ground for whether transition finance can deliver real‑economy transformation at scale.

Sources: 

[1] Convergence Blended Finance (2025). Decarbonizing the Energy Sector in Chile. Convergence Case Study.