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Oldpop55

Ca

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Posted: 01/06/19 09:22am Link  |  Quote  |  Print  |  Notify Moderator

Looking at adding portable solar panels. Have a 2019 26 ft trailer, any ideas on how many watts i would need? And reliable brands.

pianotuna

Regina, SK, Canada

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Posted: 01/06/19 10:13am Link  |  Quote  |  Print  |  Notify Moderator

Oldpop55,

Welcome to the forums.

Start with an energy audit. Or install 600 watts of panels with the Grape 40 amp controller. Portable is a poor solution, with storage being the number one issue, followed by having to strike and set them up, time after time after time.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

2oldman

Salton Sea

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Posted: 01/06/19 10:33am Link  |  Quote  |  Print  |  Notify Moderator

Solar basics

azrving

Oatman

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Posted: 01/06/19 12:47pm Link  |  Quote  |  Print  |  Notify Moderator

You need enough to replace what you are using plus roughly 10%

twodownzero

NM

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Posted: 01/06/19 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

azrving wrote:

You need enough to replace what you are using plus roughly 10%


How much was that for you? I'm about to install 400 watts on my rig to get started.

time2roll

Southern California

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Posted: 01/06/19 03:59pm Link  |  Quote  |  Print  |  Notify Moderator

400 watts is probably fine for most people. My 675 works fine on my 26' trailer.

Sometimes going big from the start is lower cost and better for ease of use.

A patchwork of small panels so that you eventually just barely have enough can turn solar into a multi year project that never really just works so you can mostly ignore the battery charge level.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

mike-uswest

Central Point, OR, USA

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Posted: 01/06/19 04:13pm Link  |  Quote  |  Print  |  Notify Moderator

I have 360 watts of panels, Zamp 30 amp controller, and it works fine for me. I am careful to try getting the best solar exposure I can, don't waste power, and enjoy what you get. I'm not in Canada, so that can make a difference too though. I only have two 6 volt batteries though, I would like to up that but my 30 foot trailer runs out of room for all the toys.

Mike


2003 Dodge 2500 CTD, 4X4,
Arctic Fox 25Y


corvettekent

Marysville, WA

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Posted: 01/06/19 04:16pm Link  |  Quote  |  Print  |  Notify Moderator

I like pianotuna's advice. I started with two 160 watt panels then added one more. I only have a 30 amp MPPT controller so it's now at it's limit. I wish I had 600 watts. Just double what you think you will need and you should be good.


2007.5 GMC Dually EC/LB, LMM. Banks IQ, Speed Brake, Six Gun. B&W Turnover Ball, Companion Hitch, Amp power steps. Hadley Air horns.

2004 32' Carriage 5th wheel. 480 watts of solar MPPT and four 6 volt batteries. Samlex 2,000 watt Pure Sine Wave Inverter.


pianotuna

Regina, SK, Canada

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Posted: 01/06/19 05:27pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

I have 256 watts. It is fine for once a month trips of 4 to 5 days, or every weekend, but not nearly enough for full time.

twodownzero

NM

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Posted: 01/06/19 06:07pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

400 watts is probably fine for most people. My 675 works fine on my 26' trailer.

Sometimes going big from the start is lower cost and better for ease of use.

A patchwork of small panels so that you eventually just barely have enough can turn solar into a multi year project that never really just works so you can mostly ignore the battery charge level.


How many amp controller are you using? The kit that is being delivered tomorrow has a 40 amp kit. 400/12 = 33, so not much cushion there and the next biggest controller was pretty expensive.

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