Rooftop Solar's Emissions Math is Changing
As clean energy grows, the limits of how it's measured are also expanding. A new study in Nature Climate Change warns that rooftop solar's emissions impact is shrinking as the grid becomes cleaner.
The first solar panels significantly reduced coal's presence on the grid. However, progress in clean energy brings new complexities, such as managing abundance, balancing the grid, and redefining progress.
The paradox is simple: the cleaner the grid becomes, the harder it is for each new clean megawatt to make a difference.
California is a prime example, with increasing solar curtailment as daytime generation drives wholesale electricity prices to zero or negative. This pattern is emerging globally in solar-saturated grids, but California is starting to see a shift.
- Rooftop solar's emissions impact is shrinking as the grid cleans itself.
- California has seen increasing solar curtailment due to an abundance of solar power.
- The trend is beginning to shift in California.
Author's summary: Clean energy growth reshapes fossil-fueled problems.
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