JFNM wrote:
In my case, I have 230 Ah of usable capacity with lead-acid (460 Ah total = $440 (recently replaced)). I would need a lithium bank that is about 300 Ah (total) to replace my existing usable capacity.
More to consider is if you really need 230 Ah with the advantages of lithium. Maybe 200 Ah is plenty.
Also possible to get by on less solar. Often we try to be done with bulk (lead-acid) before noon due to the long absorption. Might be able to cut 20% to 50% as all production will be absorbed all day right to full charge.
Same with running a generator. No 1 hour bulk and 3 hours absorption. Lithium would be done in a couple hours to 100% vs twice the time to hit 90% in a wet cell.
260 Ah usable $3,000