Clean electricity standards.

Twenty-nine states in the US and the European Union have implemented a policy called a renewable portfolio standard. This means that power companies must get a certain portion of their electricity from renewable sources like wind, solar, geothermal, and sometimes hydro. However, this policy has a drawback in that it only allows for a limited number of low-carbon technologies and excludes options like nuclear power and carbon capture, which raises the cost of reducing emissions. A better solution is to adopt a "clean electricity standard" that allows any type of clean energy technology, including nuclear and carbon capture, to contribute towards meeting the standard. This approach is flexible and cost-effective.

Gates, Bill. How to Avoid a Climate Disaster (p. 207). Penguin Books Ltd. Kindle Edition.