Amazon with Oscal Phone has the OSCAL PM3600 Portable Power Station 5ms UPS 3600Wh Backup Battery Solar Generator for $2800 - 50% off at checkout (applied automatically) - $140 off (click "Apply $140 coupon") = $1260 with free shipping.

Has a 3000W output with 6000W surge and comes with a 5 year warranty.