Sonnen Quietly Gaining Ground in Battery Storage Market
Editor’s Note: A&R Solar continues to monitor the evolving battery storage market. In addition to waiting for the Tesla Powerwall to become available to installers in the Pacific Northwest, we are also researching other companies that offer similar systems. While the Tesla Powerwall dominates in the media, a competitor is quietly gaining ground in the U.S. storage market. Sonnen, a Germany company...