Quote:
Originally Posted by MLGA
I have a 2020 Vegas 24.1 that is pre-wired for solar panels with 2 12v batteries, what size (watts) panels would in need for 1 to 2 days of dry dock and if I correct panels are mainly for lights and outlets, not running air conditioner.. I would like to mount them.
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By default, the Vegas doesn't have an inverter - so the 12v is powering the lights, CO/smoke/propane detector, furnace controls and blower, and control panel for the fridge / water heater (which needs propane or 110v AC as well).
No 110V outlets are powered, nor are the major appliances (AC, microwave).
In a 2020, I would hope the lights are all LED - so the draw should be low unless running the furnace. But depends what else you might want to plug in... a laptop, cpap machine, tv (if 12v capable), inverter to power other 110V devices.
I've found I can easily go a weekend (3 days/2 nights) without any charging on my batteries... I do have all LED lighting, 12v LCD TV and Blu ray player, 12v fan in bedroom, and a laptop... but no inverter and no furnace.
If I need A/C, I'm running the generator, and that charges the batteries.
A cold (near 30) night with the furnace needed - a completely different story... I'm running the genny to charge the batteries by morning...
But add up the total watts you want to run - look at capacity of batteries (figure use only 50% of capacity)
The load on an inverter can be a large draw... 100w light bulb (just for comparison) - draws under 1A on 110V... but through an inverter draws just over 8A from the 12v source (plus inefficiencies of the inverter)...
Once you know what you want to draw - you can see how many watts of solar - or if solar is even practical...
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