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The report analyzes renewable energy adoption among the world's largest corporations, finding that 59% of the Fortune 100 and 63% of the Global 100 have set greenhouse gas (GHG) or renewable energy targets. Companies are driven by cost reduction, risk hedging, and consumer demand, utilizing a mix of Renewable Energy Certificates (RECs), Power Purchase Agreements (PPAs), and on-site investments. Key barriers include the need for cost parity with fossil fuels, internal competition for capital, and inconsistent government policies. The report recommends that corporations set time-bound targets and that policymakers extend incentives like the U.S. Production Tax Credit (PTC) and authorize third-party PPAs to accelerate the transition.

The report finds that 48% of Fortune 500 companies have set climate or energy targets, with a notable increase in the smallest quintile of the index. Leading sectors include Consumer Staples, while the Energy sector significantly lags. The report highlights a shift toward science-based targets and 100% renewable energy commitments, noting that 190 companies reported $3.7 billion in annual cost savings from energy efficiency and renewable energy projects in 2016. It provides recommendations for companies, policymakers, investors, and the electricity sector to accelerate the transition to a low-carbon economy.