Quote:
Originally Posted by Deek
I am surprised that no one else has commented on this yet so let me be the one who does -- I love the solar panels on the roof. Can you shed light on them for the good of the order? Did Newmar install them? How do you use them? How much energy do they generate? Are you satisfied with what you get out of them versus the investment made?
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Hi Deek -
We installed the solar to allow us to visit USFS campgrounds, BLM land, state parks, etc. that don't have hookups. I'm a software engineer and working on the road, so I need power (every workday) and internet access (most workdays).
When the coach was built, Newmar did the following special orders for us: (1) upgrade the house batteries to four 6 volt AGM batteries on a sliding tray in the front left basement compartment; (2) run 2 gauge cabling* from the roof to the front right basement compartment for the solar panels; (3) run two Romex cables from the 110 volt electrical panel to the front right basement compartment for the inverter feed/return; (4) run two telephone cables from the monitor panel to the front right basement compartment for the charge controller monitor and inverter monitor
[*Well, the cables were supposed to be 2 gauge. But what was actually installed as 2/0 gauge, which is considerably larger.
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We had AM Solar (Eugene, Oregon) do the rest of the install, which included: (1) five 160 watt solar panels; (2) a Morningstar TriStar charge controller and remote monitor panel; (3) a Magnum MS2000 inverter and remote monitor panel; (4) moving the 110 volt circuits for the microwave, fridge, front and rear AV systems, and various receptacles to a subpanel energized by the inverter.
Having Newmar run the cabling resulted in a very clean installation, but probably didn't save any money. Both Newmar and AM Solar did great work.
So, we can power everything in the coach from the batteries/inverter except the heat pumps, hot water heater, and heat pads.
We have a Norcold absorption fridge, and when in "electric" mode, it draws down the batteries a little faster than the solar can charge them. So, we run the fridge on electric on travel days, but if we don't have shore power for an extended period, we switch the fridge to LP. (We also use LP for the hot water heater, furnace, and cooktop.)
The solar panels nominally produce a maximum of 800 watts. The highest I've ever seen is about 650 watts. This should be plenty for our needs. I don't expect to need to run the generator unless we get a couple of cloudy days in a row, or need the air conditioning. But the real test will be this winter when the days are shorter and the sun lower in the sky.
We've only been full timing two months, and we're still settling into the lifestyle. So we'll see how all this goes. But, for us, the return on the solar investment is the ability to camp where we want.
David