Tesla Requiring At Least One Powerwall with All Solar Projects: Report

Solar energy and power storage are just a couple of Tesla Energy’s newest sustainable frontiers, though a recent update has made it so customers must purchase its Powerwall for all solar roofing projects.

Tesla is currently requiring at least one Powerwall per solar roof project, according to a Monday report from Electrek citing sources familiar with the matter.

The news comes just a week or so after Tesla CEO Elon Musk said buying a Powerwall without solar “should be possible” by the end of the year.

After Tesla struggled with Powerwall supply for much of the year, the automaker recently upped its production to around 6,500 Powerwalls per week to help accelerate the energy storage device’s deployment.

The move could help Tesla expand its Virtual Power Plant program, which uses stored power from several homes to help supply energy back to the electrical grid, more quickly in the years to come.

Just a few weeks ago, Tesla held its first and second Virtual Power Plant events in California, the latter of which saw over 3,600 homes providing power back to the grid.

Similar programs have launched or will launch in Japan and Australia, in addition to U.S. programs in Texas and Hawaii.