parallel – Graves On SOHO Technology

Deal Alert: Wen Parallel Kit Delivers 250v 50A (12 kW) for Household Backup Power

It was two years ago, after the crazy derecho and Hurricane Beryl that I did a deep dive into an affordable approach to whole home backup power. That effort documented our own strategy, which involves a Predator 9500, which is large portable inverter. This is in contrast to expensive, installed backup generators from Generac or similar.

Since then, I remain active in various online forums on related subjects. A question that often comes up involves connecting a pair of inverters in parallel to deliver more power. This comes up enough that I wrote an overview of parallel kits for the Predator 9500 and similar inverters.

In doing that I discovered that these parallel kits were in short supply. Some companies like Harbor Freight, simply don’t offer them. Duromax does, but was sold out for the longest time. So, I was happy to find that Wen has an attractive offer that’s currently on sale for just $62.

February 9, 2024
Michael Graves
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Our strategy for whole house backup power involves a portable inverter generator connected to the house using an inlet and mechanical interlock. As is my habit, I did quite a bit of research to arrive at this strategy. Now that we have a couple of years experience with its use, I am happy to share that knowledge with those who are following down the same line of thought.

One of the most common questions I see in various online space involves how to deliver more power by connecting a pair of inverters in parallel. On the surface, it’s a simple question, but as ever, there’s some detail to the answer.

For the sake of this discussion I’m going to consider the Predator 9500, AIVolt AT20-2100001E, Duromax XP9000iH, Pulsar 9500, and Genmax GM9000iE. These five popular models are all made in the same Chinese factory. They vary only slightly from one to the next. They all have a built-in facility for parallel operation.