Bluedog225
Texas
- Joined
- Nov 18, 2019
- Messages
- 2,829
Good morning,
I’m getting close to ordering this pre-wired system from Alt E. The plan is to mount panels when the weather cools and install the electrical and air conditioning to be functional by next May.
I’d appreciate any advice on this approach. In particular, any critical input welcome. This is a big purchase.
Here’s my setup and thinking:
I believe I’ve heard generally positive feedback regarding Alt E as a seller. Open to alternatives.
Off grid cabin/tiny home. No well pump. No large surge loads. Any large tools will be run off the 9000 watt generator.
I currently have four SOK 48 volt 100 amp rack batteries and 60 or so 300 watt panels that I can mount and configure as needed. No space limitations. East, west, and south (main) arrays.
My energy needs are roughly 2000 watt continuous in the hot, hot summer for air conditioning and misc. Energy needs for the other 8 months of the year will be substantially less. Cabin framed and dried in but no insulation or electrical appliances yet. Energy audit is an estimate.
To recharge the batteries from empty, I’m thinking I’ll need about 400 amps at 48 volts to get 20,000 watts.
The Midnite 200 can charge at 65 amps. During the hot, sunny part of the year, I estimate 4.5 hours * 65 amps=292 amps.
If I go this route, I will add another midnite after I get they system up and running. Or ask Alt E to pre-wire two units. Derating everything for real world operation will still give me adequate charging.
[Edit-deleted section about pass through energy. No applicable here. I keep getting this wrong.]
As needed, I can add more solar, more server rack batteries, and more midnite controllers to give me longer battery run time. I do not expect I will need the full inverter capacity.
There are cheaper all in one options. I am looking for a long-term reliable Tier 1 solution. With particular emphasis on fire safety.
If ambitious, I can later try to add some micro-inverters to roof mounted panels as this inverter supports frequency shifting.
This inverter provides 120 volt and 240 volt to support household loads and high SEER mini splits. And it allows generator support.
Any thoughts much appreciated.
Thanks!
I’m getting close to ordering this pre-wired system from Alt E. The plan is to mount panels when the weather cools and install the electrical and air conditioning to be functional by next May.
I’d appreciate any advice on this approach. In particular, any critical input welcome. This is a big purchase.
Here’s my setup and thinking:
I believe I’ve heard generally positive feedback regarding Alt E as a seller. Open to alternatives.
Off grid cabin/tiny home. No well pump. No large surge loads. Any large tools will be run off the 9000 watt generator.
I currently have four SOK 48 volt 100 amp rack batteries and 60 or so 300 watt panels that I can mount and configure as needed. No space limitations. East, west, and south (main) arrays.
My energy needs are roughly 2000 watt continuous in the hot, hot summer for air conditioning and misc. Energy needs for the other 8 months of the year will be substantially less. Cabin framed and dried in but no insulation or electrical appliances yet. Energy audit is an estimate.
To recharge the batteries from empty, I’m thinking I’ll need about 400 amps at 48 volts to get 20,000 watts.
The Midnite 200 can charge at 65 amps. During the hot, sunny part of the year, I estimate 4.5 hours * 65 amps=292 amps.
If I go this route, I will add another midnite after I get they system up and running. Or ask Alt E to pre-wire two units. Derating everything for real world operation will still give me adequate charging.
[Edit-deleted section about pass through energy. No applicable here. I keep getting this wrong.]
As needed, I can add more solar, more server rack batteries, and more midnite controllers to give me longer battery run time. I do not expect I will need the full inverter capacity.
There are cheaper all in one options. I am looking for a long-term reliable Tier 1 solution. With particular emphasis on fire safety.
If ambitious, I can later try to add some micro-inverters to roof mounted panels as this inverter supports frequency shifting.
This inverter provides 120 volt and 240 volt to support household loads and high SEER mini splits. And it allows generator support.
Any thoughts much appreciated.
Thanks!
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