EcoFlow DELTA Pro vs Jackery Explorer 1000 Plus

“I've been looking at doing exactly what you describe: 2 Anker F3800+'s with the dual hub connector can provide up to 12KW same as your generator. 2 Ecoflow Delta Pro 3's can be similarly combined for 8KW. Costco had a sale for the 2 units for $4200 that just ended. Ecoflow looks cheaper, but their support from China is worse... firmware updates can turn the system into a brick. Ecoflow also advertises you describe with their smart generator started/stopped by the battery... they claim something like a 40% increase in efficiency by letting the generator run at peak performance. Your idea also lets you use a much smaller generator as you only need to supply the average load vs. the peak loads. It's also a lot quieter when only running the generator to top off the batts... probably won't run at all over night.”

“The Jackery kit won't work, but not for the reason you stated. If you look at the technical specifications listed for the unit, it states that the AC outputs are 120V. You mentioned that the pump control box says it's 230V. So the Jackery kit won't be able to output the voltage to match what you need. You misunderstand how the breaker for you pump is set up/works. A double 20A breaker is designed to trip if the current passing through it exceeds 20A. Most US residential electrical services are split phase 240V supplies. That means you have 2 hot wires and a neutral wire entering your main electrical panel. The purpose of the double circuit breaker is to look at the current traveling though both hot wires to your 240V motor, and if one of them exceeds the breaker's rating (in this case 20A,) it disconnects power from both hot wires to the motor at the same time.”