Assessing the Potential for U.S. Utility Green Bonds

Green bonds offer utilities billions to power clean energy transition

By Tan Lam, Peter Fox-Penner, Jennifer Hatch

May 2019

Green bonds are a newer debt security in impact investing that could help finance what is likely the largest challenge in sustainability: the full transition to carbon-free energy systems. To determine the potential power of green bonds in the transition, an Institute for Sustainable Energy (now the Boston University Institute for Global Sustainability) analysis found the U.S. utility industry has the capacity to issue $350 billion in green bonds without adversely affecting credit ratings.

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