Sunder
10 MW
Guys,
I'm pretty sure the answer is no, but there are some smart people here.
I've offered to build a 12kwh battery bank and inverter for my dad's farm house, which is to be totally off grid. There was some miscommunication there, as I designed the system based on the assumption of a 48v system, to have less loss coming from the solar panels, and less loss converting from battery to 240v. This will be using 4 x 12v deep cycle batteries @ 250Ah.
However, he assumed I was using a 12v system, and has wired up a whole lot of 12v low voltage lighting all around the house. Here's what I see as my options:
1. A single step down transformer from 48v to 12v. Pros - only one needed. Cons - inefficient and needs to be pretty big
2. Use the normal 240v to 12v transformers that they come with and hook it up to the 240v circuits. Pros - Already got them. Cons - very inefficient
3. A separate 12v system with a separate solar voltage regulator. Pros - efficient. Cons - lots of extra $$
4. Here's the question - is there any way I can use diodes or some other technology to draw 12v from all four battery banks evenly (So I don't end up with 1 battery being dead, and 3 others being over charged)? Essentially, this is the question of "Can I have a 4s1p and a 1s4p configuration at the same time?".
Pretty sure it's not possible, but I thought I had to ask before looking into the other options. Thanks!
I'm pretty sure the answer is no, but there are some smart people here.
I've offered to build a 12kwh battery bank and inverter for my dad's farm house, which is to be totally off grid. There was some miscommunication there, as I designed the system based on the assumption of a 48v system, to have less loss coming from the solar panels, and less loss converting from battery to 240v. This will be using 4 x 12v deep cycle batteries @ 250Ah.
However, he assumed I was using a 12v system, and has wired up a whole lot of 12v low voltage lighting all around the house. Here's what I see as my options:
1. A single step down transformer from 48v to 12v. Pros - only one needed. Cons - inefficient and needs to be pretty big
2. Use the normal 240v to 12v transformers that they come with and hook it up to the 240v circuits. Pros - Already got them. Cons - very inefficient
3. A separate 12v system with a separate solar voltage regulator. Pros - efficient. Cons - lots of extra $$
4. Here's the question - is there any way I can use diodes or some other technology to draw 12v from all four battery banks evenly (So I don't end up with 1 battery being dead, and 3 others being over charged)? Essentially, this is the question of "Can I have a 4s1p and a 1s4p configuration at the same time?".
Pretty sure it's not possible, but I thought I had to ask before looking into the other options. Thanks!