Even a small LFP bank can run an AC the question is for how long
. That couple also waited for an optimal day, had optimally angled panels
, a top quality controller, an efficient inverter
plus 1000W of solar
and it still left a -30A deficit.
With a typical flat mounted & often shaded 1000W array on a boat, and 1000W is a huge boat array, you simply won't yield the performance they saw. Sure, if you want to eat dinner with peace & quiet and have an LFP bank, or even a very large lead bank, this can
be done. Getting to the point of sustainable 24/7 climate control
, AC and LFP is still a pipe dream for a roving RVer or cruiser unless you choose to tow a solar farm behind you.....
You still have to put all that energy back into the batts and the optimal time for this, with solar, is obviously during sun-up hours. The optimal time for AC also coincides with sun-up hours.. You are still going to need an ICE to replenish the bank unless you choose to sweat it out during the day and run AC at night...
I am amazed they even questioned the ability of the LFP to drive that load because the question is not can it
but how long can it..