An electrician's dream, Sol-Ark's turnkey design and fanatical engineering support team take out the guesswork and do the heavy lifting for ESS power design. Originally made for DIY, the outdoor rated 12K is simple to install with a dust-proof enclosure protecting internal electronics designed to last 25 years. 9000Wac output with massive 20000VA surge to power heavy stuff. Battery communications available with several major battery brands. Easy remotely programmable fleet management included with a mode for just about any application. Add ANY generator, ANY battery (48V)! 7 day/week engineering support with installers reporting the shortest wait time in the business (CALL 972-575-8875 ext 2). As a Veteran owned company, our proprietary EMP hardening technologies make our inverters so tough that they are designed to even survive thermonuclear war.