The Biden administration has deployed various programs to try to increase access to clean energy. But systems that could help lower bills are still out of reach for many low-income households.
The devices can heat and cool homes more efficiently than furnaces and air-conditioners, but their sales have slowed because of higher interest rates and a slow rollout of federal incentives.
Under “Cool Biz,” salarymen and government workers don short-sleeved shirts in the summer as offices are kept above 82 degrees Fahrenheit to save energy.