Thread Tools Display Modes
Old 08-25-2015, 05:31 PM   #1
Junior Member
Join Date: Apr 2015
Posts: 4

How much solar panels to operate a 27rss Flagstaff travel. Trailer off grid including ac

Adela is offline   Reply With Quote
Old 08-25-2015, 05:33 PM   #2
Senior Member
mud yapster's Avatar
Join Date: Aug 2014
Location: Texas
Posts: 1,162
Going to depend on your load

2014 Palomino Columbus 3650TH
435AH 12V VMax Charge Tanks, 520 watt Monocrystilline Solar Array, Morningstar MPPT TS-60 CC,Morningstar Remote,Cotek True Sine Wave Inverter,Cotek Remote Controller,50amp Progressive Hardwire Surge Protector
2015 Dodge 3500 6.7L 4X4
2011 CanAm Commander XT 1000
mud yapster is offline   Reply With Quote
Old 08-25-2015, 06:03 PM   #3
Senior Member
Join Date: Aug 2009
Posts: 627
"Including the ac", You are going to need a lot and a bunch of batteries to store any excess power you may generate.
Filthy Beast is offline   Reply With Quote
Old 08-25-2015, 06:38 PM   #4
Senior Member
Blackhat6mike's Avatar
Join Date: Dec 2014
Location: St Simons Island, GA
Posts: 1,212
When you start talking about running an A/C, you are talking about MANY more components than just solar panels.
You will need an Inverter, a minimum of 5 deep cycle, high amp hr batteries, LARGE solar controller, heavy gauge wiring [8 gauge] for panels to controller, 04-06 cables from inverter to batteries, 8 x 100 watt solar panel at least. An automatic transfer switch is a big help, but can be worked around with some trouble. Several large amp fuses and at least 2 breakers to disconnect panels and batteries from controller.
If you want to run a small A/C [13,000 btu] for 3-4 hours, then you can scale down SOME, but not much. Maybe 6 x 100 watt panels.
Batteries are the heart of the system and without them, meaning usable amp hrs, you will be very limited as to what you can run and how long.
Make sure you use a MPPT solar controller as they are much more efficient than a PWM unit.
Depending on where you live or camp, your exposure to optimum sun conditions will be a big factor. Here in SE Georgia, we get over 12 hours a day of sun during the summer and about 8 during the winter months.
Aviator Wright Flyer #1919
Army Pathfinder Vietnam, 3 tours
Blackhat6mike is offline   Reply With Quote
Old 08-26-2015, 01:46 PM   #5
Junior Member
Join Date: Mar 2015
Posts: 11
I have 400 watts of solar panels and it works great for everything except the AC. I have looked at running the AC but you are looking at 1000-1500 watts to run the AC after it gets started. You would need like already stated a lot of panels I would think 8 but more like 10 100 watt panels with about 1000 amp hours of battery. The battery weight would be around 600 lbs.

Sent from my iPhone using Forest River Forums
Andy52 is offline   Reply With Quote
Old 08-26-2015, 02:02 PM   #6
Site Team
Flybob's Avatar
Join Date: Oct 2014
Posts: 6,674
a fully charged 200Ahr battery bank would run AC about 45-60 mins before it needed to be recharged. Remember there are very high inefficiencies in solar equipment ( panels, controllers, cabling ).


2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
Flybob is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:22 PM.