President Biden is pushing lawmakers and regulators to wean the United States from fossil fuels and counter the effects of climate change. But his ambitious goals could be upended by aging transformers and dated electrical lines that have made it hard for homeowners, local governments and businesses to use solar panels, batteries, electric cars, heat pumps and other devices that can help reduce greenhouse gas emissions. Much of the equipment on the electric grid was built decades ago and needs to be upgraded. It was designed for a world in which electricity flowed in one direction — from the grid to people. Now, homes and businesses are increasingly supplying energy to the grid from their rooftop solar panels. These problems have become more urgent because the fastest way to cut greenhouse gas emissions is to move machinery, cars and heating equipment that currently run on oil and natural gas to electricity generated by solar, wind, nuclear and other zero-emission energy sources. Yet the grid is far from having enough capacity to power all the things that can help address the effects of climate change, energy experts said.
By Ivan Penn. New York Times. October 28, 2021.