Biden's 100% carbon-free hurdle

The bottom line: That final 10% is much tougher and marks where the price tag soars, per an updated analysis shared by economist Meredith Fowlie in the blog. Here's why...

• "To completely decarbonize the electricity grid, you either need to invest in CCS or shut off all fossil fuels and rely on some relatively expensive alternatives (e.g. more storage, hydrogen fuel cells)."
• "[D]riving power sector GHG emissions to zero more than doubles the marginal cost per ton of carbon pollution avoided, pushing into the $100–$125 range."
• "And higher costs mean higher electricity prices which could make it harder to cut GHGs in sectors we are hoping to electrify like transportation and buildings."