Originally Posted by RDinNHandAZ
Some posters here have put on as much as 500-600 watts on their vans and they may have a need I can’t imagine.
I resemble that remark.
We have 640w total from four 160w panels on the top of BoB. Feeds into a 200ah lithium battery.
Power draws are the 5 cubic foot fridge/freezer (12v), the MaxxFan in season, the microwave through the 1000w inverter. All that certainly does not need the 640w, even in the winter here in WA state.
And then there's our 12v A/C unit.
It draws 32-40 amps when operating. And when are we most likely to use it? When its warm and there's full sun. With the BlueSky MPPT controller, I can see 35-40 amps incoming from the panels. Now, as I've mentioned before, its a small A/C unit and doesn't keep up under high cooling demands, but it does help, and as such is basically a solar-powered A/C.
Oh, and we primarily did it to keep the dogs cool in the van. I have a setup to direct the output back to the dog crate. Its all for the dogs.
And that's why a full roof with 640w of solar is just enough for us.
-- Zyzzyx --
-- BoB, a ProMaster 3500 159" HR Ext Diesel, metallic silver
-- Ordered 2/21/15, VIN 3/22/15, Built 5/21/15, Received 6/11/15
-- The Building of BoB the Van --