Abstract
Summary Mitigation of global warming requires substantial investment in electricity generation from renewable sources. A large share of new generation capacity is required in regions with adverse financing conditions. We propose a global guarantee mechanism to reduce risk premia of renewable energy investments by means of risk pooling and increased market efficiency. Policymakers could establish this mechanism by scaling up existing international risk guarantee initiatives. We estimate the net present value of overall savings at US$2018 1.5 trillion globally for investments by 2030, with the largest relative savings (between 20.5% and 22%) in Sub-Saharan Africa and the Maghreb. The savings from such a mechanism outweigh its estimated average yearly operating cost. By lowering the cost of decarbonization in high-risk countries, the proposed mechanism offers policymakers a tool to make current global mitigation pledges more achievable and enables the global community to pursue more ambitious climate action.
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