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Old 08-23-2015, 05:33 AM   #21
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I would much prefer a flush installation that is fully caulked and sealed.
Consider panel cooling. A hot panel produces less power.
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Old 08-23-2015, 06:24 AM   #22
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I am planning on installing residential panels as well, but the mounting brackets all stand off the surface an inch or more to accommodate the connectors underneath. I would much prefer a flush installation that is fully caulked and sealed.

Are marine panels different, do they install flush? Any suggestions otherwise?
Instructions for my panels, Kyocera, state to mount them at least one inch off of the deck so that the heat dissipates.
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Old 08-23-2015, 07:53 AM   #23
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Living with Alt energy does NOT start with power generation ,or storage it starts with reducing the requirements for power.

Look up Home Power mag , for ideas.

It is usually 300%++ cheaper to reduce the power needs than create ,store, perhaps convert (inverter) then consume power.

It is painful to purchase a $1500 Sun Frost fridge or a $1100 RV propane fridge , rather than a $100 unit from the big box store , but it IS worth it.

Refrigeration is the biggest power hog and expensive to do to go a number of days without a noisemaker.

*******

"Are marine panels different, do they install flush? Any suggestions otherwise? "

The solar output drops off at higher temperatures , so a couple of inches of cooling space under the panel will have a better output.
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Old 08-23-2015, 01:19 PM   #24
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It is painful to purchase a $1500 Sun Frost fridge or a $1100 RV propane fridge , rather than a $100 unit from the big box store.
12cf SunFrost is $2500 and uses 0.5 kwhr daily.
12cf Samsung (digital inverter technology) is $825. Predicted energy use is difficult to get numbers for.

The difference in price of $1700 will buy enough solar panels, controller and small inverter to run the household fridge. Plus there are the benefits of having some 110v/220v for other uses and green energy production.

A tough decision either way, because it's not always about dollars, but also about one's values, philosophy and dedication to the environment.
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Old 08-23-2015, 01:34 PM   #25
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The difference in price of $1700 will buy enough solar panels, controller and small inverter to run the household fridge .

Great. How will your boat look with an extra 1700 watts of panels mounted on it solely dedicated to the fridge?
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Old 08-23-2015, 02:40 PM   #26
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Semi Flexible Sunpower Solar Cell Panel 120w 130w 140w 150w 180w 200w Flexible Solar Panel - Buy Flexible Solar Panel,Solar Cell Panel,Semi Flexible Solar Panel Product on Alibaba.com

Times are a changing and these are probably already so last year. American made sunpower cells put together in China ( surprise surprise). I have got 15 of the 180 watt 24v panels and all working fine.
You're absolutely correct. Those are slightly higher power per sq meter than the rigid panels that I have.
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Old 08-24-2015, 11:42 AM   #27
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12cf Samsung (digital inverter technology) is $825. Predicted energy use is difficult to get numbers for.

A rough estimate can be made by reading the yellow tag in any refrigerator.

It has annual power consumption , divide bt 356 and you will have a very rough guesstimate.

The sticker is always WRONG as it is not required to count the heating elements in the door seal or the insulation.in with the insulation.

Thin insulation must be heated frequently to drive out the water , which is a poor insulator.

Amazing what disinformation K street can purchase from congress.

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Dometic - dependable propane gas refrigerators don't need electricity.






WE prefer propane as no electric is required , so no noise for a year is easy to do.

The Servelle units made for the Amish are for homes so do not skimp on the insulation as the RV units must.
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