Need help with unusual power needs
Hi everyone, I'm sure everyone thinks their situation is unique - and I'm no different :-) However, I genuinely do have an unusual power need for my situation and need some advice as to the best kind of setup.
I have a dock around 650 feet from my home on the island of Roatan in the Caribbean. Running power from the house is a fairly significant cost so looking to put an off grid solar system on the dock. Lighting will be LED and quite possibly low voltage (12 or 24 volt) but would also want to run an inverter for regular power for occasional larger gatherings with higher power needs. Usage would be likely around 2 hours a day, 4 or 5 days a week with no need for too much reserve. Rainy season would reduce solar exposure obviously, but would also reduce the need - less likely to be sitting on the dock in a storm!
So far, so simple, but.....
I also need to power a boat lift. It will run on two 3/4HP motors and requires either 120v / 30A or 240v / 15A. I assume the additional amps are for start up surge. Usage would be no more than one down and one up cycle a day for a total of 5 to 6 minutes. I get that ordinarily I shouldn't be trying to put a 2000w converter on a 200 amp hour battery and a 200 watt panel, but what do I need for such high draw for very short periods? I'm assuming a 240v / 15A solution is better for the usual reasons, and am thinking a 24v battery system is the way to go, but beyond that I'm struggling to figure out how to meet my needs without overkill and while staying safe.
Any ideas greatly appreciated - even if it's only to suck up the cost of running house power!