ACC News Brief
Clean Energy Global
High financing costs can block high-impact renewable projects
What happened
A global modeling study finds that renewable projects can avoid far more emissions in low- and middle-income countries, yet higher financing costs can add about $26 per megawatt-hour for solar and $24 per megawatt-hour for onshore wind. In the study, modeled mitigation per project was more than 20 times larger there than in high-income countries.
Why it matters
Strong renewable resources and high climate benefits do not automatically produce affordable projects. Currency risk, interest rates, political risk, and limited access to capital can make finance the dominant part of generation cost where new clean power could displace the most emissions.
What to watch
- Whether concessional finance, guarantees, local-currency lending, and policy stability reduce actual project costs.
- How the estimates change with newer project data, technology prices, and country-specific financing conditions.
- The final edited article; the current Nature Communications page is an unedited early-access manuscript.
Sources & evidence
- High costs of capital shape the mitigation effects of renewable energy deployment globallyNature Communications research article published August 13, 2026; model results compare financing costs and mitigation effects across countries.
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