Axios

Walmart's plan to dramatically expand its electric vehicle (EV) fast-charger network is a big deal for the country's quickly developing car-charging infrastructure.

Why it matters: 90% of Americans live within 10 miles of a Walmart, the company says — a statistic that underscores Walmart's potential to put fast EV charging within reach of far more drivers, including in underserved areas.

The Environmental Protection Agency is expected to propose new rules limiting auto tailpipe emissions this week as part of a plan to accelerate a transition to electric vehicles in the U.S.

Why it matters: Transportation is the country's largest source of greenhouse gas emissions.

Tesla will open a "Megafactory" in the Chinese city of Shanghai, the electric vehicle maker announced Sunday.

The big picture: The factory "will initially produce 10,000 Megapack" battery units per year, equal to about 40 gigawatt hours of energy storage, to be sold globally, the Chinese state news agency Xinhua first reported on Sunday.