Can homes go all-electric on 100 amps? (Canary Media)
Apparently, according to a small California pilot program by Peninsula Clean Energy. In 2024, the PPA noticed that 99% of 700+ all-electric single-family homes in its territory never drew more than 100 amps all year. So they took it to the test by electrifying nine low-income homes in the Bay Area, including five on 100-amp panels—no service upgrades or smart panels needed.Â
The outcome: Participants’ energy bills fell by 20 percent on average. Since the pilot, PCE has retrofitted dozens more homes, and 95% haven't needed upgrades.Â
The caveat: The results may not translate cleanly to extreme climates, where weatherization and heavier heating loads change the math. But even in chilly Calgary, a handful of 100-amp homes have gone fully electric, suggesting the barrier is lower than critics claim.