Hoping some of you engineering types can explain to us why more power boats aren't taking advantage of solar panels
to recharge their house batteries.
Been looking at some mid-80s Chris-craft Catalinas. Most seem to be running a single
group 27 house battery
. They typically have a full size, 110v house-style refrigerator
. Not 12v/110v dual voltage, just straight 110v. That means the refrigerator
would only be running when connected to shore power
or the generator
is running or on an inverter
Did some research
to figure out how many amps a typical full size 'frig would draw per hour. Assuming it only runs about 20 minutes out of each hour and it's running off of an inverter
connected to a typical group 27 battery
, the battery will only last about three hours.
Looking around on the internet
, I found several kits designed for marine
or RV use that include solar panels
, inverters, and battery chargers similar to this example
. It outputs 320W/17.7A, which sounds like plenty to keep the battery charged so that the inverter can supply juice to whatever needs it. If so, the generator
wouldn't be needed until evening.
But none of the example boats we've seen online have solar panels
. Seems like a no-brainer. Any idea why more power boaters aren't using solar