It is a key to combatting climate change, so lots of cities and towns are starting to ban gas hookups on new construction.
Two key factors have recently aligned to make going all-electric more feasible for policymakers, homeowners, and developers, as both a carbon- and cost-cutting measure. Electricity generation produces far fewer greenhouse emissions than it once did. And electric appliances have become more efficient, user-friendly, and reliable.
A few decades ago, gas furnaces were a cheaper and less-polluting choice than electric space heating systems plugged into a grid dominated by coal-fired power plants. But today’s electric grid is cleaner. In California, more than half of the electricity used by consumers is now zero-carbon; state law requires this share to reach 60 percent by 2030, and 100 percent by 2045. Nationally, about 38 percent of electricity was generated by zero-carbon (renewables or nuclear) sources in 2019, up from about 23 percent in 1980. Along with new mandates and market trends, recent improvements in energy devices, such as air-source heat pumps that can efficiently keep spaces warm or cool in a wide range of climates, have the potential to make conventional gas-burning heaters — and the vast infrastructure required to fuel them — obsolete.