Takeaway: reliability concerns about the transition to renewable electricity are valid, but not insurmountable.
Potential U.S. Electricity Generation Mix in 2050 (%)
A 2012 analysis shows that the U.S. can achieve over 80% carbon-free electricity generation by 2050, while maintaining grid reliability in every U.S. region and at relatively low cost.
This would reduce power plant greenhouse gas (GHG) emissions by more than three-quarters from current levels (equivalent to reducing overall emissions by about one-quarter).
This would increase the average American's monthly power bill by about $20, but this excludes power bill savings from energy efficiency and healthcare cost savings from reduced pollution.