sethcentral
New Member
- Joined
- Mar 10, 2022
- Messages
- 7
This question is about whether there is DIY solution that is cheaper than the Delta Pro for one relatively specific application.
The application is: temporary backup of a few circuits in my home panel in an outage. Specifically, I want at least 30 amps at 120v. I have a 30 amp 120v/240v inlet connected to my home panel via an interlock. In a power outage, the typical thing, of course, would be to hook up a gas generator. What I would like to know is what the cheapest battery-based alternative to this would look like. I specifically want a battery that can take full advantage of the 30 amp generator inlet already connected to my panel. A further constraint is that I would only want to charge the battery via 120v AC. Not solar/DC. So this question is about how this could be best achieved.
As far as I know (feel free to correct me), the cheapest "off the shelf" solutions here are the Delta Pro and the Bluetti AC300, both priced today at around $3.6K. However, the Bluetti can technically only achieve 25 amps at 120v, so for the application I am interested in, the Delta Pro wins. One Delta Pro can apparently push 30 amps at 120v. You would need two ($7.2K) to achieve 30 amps at 240v. 240v would be epic, but let's suppose 120v is fine for now.
OK, question: is there some DIY, or DIY-ish, solution that could compete with the Delta Pro in this exact application, i.e., achieving 30 amps at 120v, and charging via ordinary AC? I'm pretty ignorant about batteries and inverters so I hope you pros can help me. Evidently cheap LiFePo4 is plentiful. Suppose I get one of those EG4 racks, just for instance. That would give me more storage than a Delta Pro. What inverter/charger would be the easiest to pair with one of those EG4s in order to ultimately get one 30 amp plug I can connect to my home panel? Curious how the price would compare to the Delta Pro. Any advice welcome, thanks in advance.
The application is: temporary backup of a few circuits in my home panel in an outage. Specifically, I want at least 30 amps at 120v. I have a 30 amp 120v/240v inlet connected to my home panel via an interlock. In a power outage, the typical thing, of course, would be to hook up a gas generator. What I would like to know is what the cheapest battery-based alternative to this would look like. I specifically want a battery that can take full advantage of the 30 amp generator inlet already connected to my panel. A further constraint is that I would only want to charge the battery via 120v AC. Not solar/DC. So this question is about how this could be best achieved.
As far as I know (feel free to correct me), the cheapest "off the shelf" solutions here are the Delta Pro and the Bluetti AC300, both priced today at around $3.6K. However, the Bluetti can technically only achieve 25 amps at 120v, so for the application I am interested in, the Delta Pro wins. One Delta Pro can apparently push 30 amps at 120v. You would need two ($7.2K) to achieve 30 amps at 240v. 240v would be epic, but let's suppose 120v is fine for now.
OK, question: is there some DIY, or DIY-ish, solution that could compete with the Delta Pro in this exact application, i.e., achieving 30 amps at 120v, and charging via ordinary AC? I'm pretty ignorant about batteries and inverters so I hope you pros can help me. Evidently cheap LiFePo4 is plentiful. Suppose I get one of those EG4 racks, just for instance. That would give me more storage than a Delta Pro. What inverter/charger would be the easiest to pair with one of those EG4s in order to ultimately get one 30 amp plug I can connect to my home panel? Curious how the price would compare to the Delta Pro. Any advice welcome, thanks in advance.