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andyselzn 07-02-2014 12:47 AM

solar recommendations
Looking for good solar panels. Recommendations? :)

It is for a Bristol 24. It has space on the hatch, transom outboard well, and forward hatch.

Energy Plan
- Two Batteries: 120 amp hrs (total for both batteries)
1. Tiller Pilot (TP22)
2. Depth Sounder
3. Knot Meter
4. iPad
5. Garmin Glo (Blue tooth GPS feed to ipad)
6. Radio w/AIS (Standard Horizon GX 2150)
7. Navigation lights
8. Interior LED's

I currently have one portable, foldable 25 watt panel.

Alex W 07-02-2014 01:07 AM

Re: solar recommendations
What region do you sail in, what times of year do you sail, and how often do you want to plug into shore power?

A 50w panel with a good controller (like the Genasun MPPT) would probably be more than enough.

andyselzn 07-02-2014 01:40 AM

Re: solar recommendations
SF Bay Area. Want it to be offshore capable. Say SF to Hawaii. Will look up Genasun MPPT. Any recommendations on the 50W panel brand and vendor?

mitiempo 07-02-2014 01:56 AM

Re: solar recommendations

Originally Posted by andyselzn (Post 1978514)
- Two Batteries: 120 amp hrs (total for both batteries)

I agree on the Genasun - you won't find a better small panel controller.

Which batteries are you using that only have 60 AH each?

andyselzn 07-02-2014 02:10 AM

Re: solar recommendations
Haven't bought the batteries yet. Thought I would throw in some specifications or it would be pretty vague question. Am leaning towards two 27 batteries which are 90A each. I am guessing that they will take on and release charge when going from 80 to 50% and then charged back up to 80.

Still interested in a manufacturer/vendor for the panels. :)

mitiempo 07-02-2014 02:13 AM

Re: solar recommendations
With solar they will charge past 80%. 100% if enough sun with little DC use.

Lots of good brands of panels. I would avoid E Bay and buy from a reputable solar retailer in your area.

andyselzn 07-02-2014 02:18 AM

Re: solar recommendations
I have heard that some retailers can be as little as $1/watt. Also, wondering about the other specs: weight/height etc. Are the ones for marine use different?

mitiempo 07-02-2014 02:30 AM

Re: solar recommendations
There is no specific marine solar panel really. They are all designed and built to withstand the elements.

Buying at $1 a watt leads you to the bottom of the barrel in quality in most cases. $2 to $3 a watt is more normal I think, maybe $4 a watt for flexible panels like those from Go Power.

The other issue is panel size. The price per watt drops as the panel gets larger but you probably want a small panel - somewhere under 100 watts.

andyselzn 07-02-2014 02:39 AM

Re: solar recommendations
Sweet. Please point me to one or two online vendors. Oregon preferred.

andyselzn 07-02-2014 02:47 AM

Re: solar recommendations
Sunforce seems to have 80, 100, and 150W for 12volt systems. No other options at this site. Sunforce 100 Watt Crystalline Solar Panel

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