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 Originally made for DIY, the outdoor rated 5K, 8K or 12K is simple to install with a dust-proof enclosure protecting internal electronics designed to last 25 years. Massive 20000VA surge to power heavy stuff, for ideal home backup or off-grid. Sell back capable so PREPA helps pay for the system! Battery communications available with several major battery brands offering true choice and flexibility. Easy remotely programmable fleet management included lifetime 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). Tenemos ingenieros hispanohablantes también y nuestros distribuidores en la isla apoyan nuestras garantías de producto y sirven de centros de reparación! As a Veteran owned company, our proprietary EMP hardening technologies can be integrated into our inverters as well -- the perfect fit for the security-minded: inverters so tough that they were designed to even survive thermonuclear war.