Model # GS-Star-100W

Internet #204211365

Grape Solar 100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
0855172003515

Grape Solar

100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems

  • Easy installation
  • High efficiency solar cells
  • Ideal for sheds and cabins
Was  $145.49
$119.99 /each

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Product Overview

High efficiency Solar cells (approximately 17.4%) with quality silicon material for high module conversion efficiency and long term output stability and reliability. Virtually maintenance free. Ideal for RV's, cabins, sheds, remote locations and other small power generation needs.

  • Positive and negative leads equipped with MC4 connectors
  • Rigorous quality control to meet the highest international standards
  • High transmittance, low iron tempered glass with enhanced stiffness and impact resistance
  • Advanced encapsulation material with multilayer sheet lamination to provide long-life and enhanced cell performance
  • Outstanding electrical performance under high temperature and weak light environments
  • Unique frame design with strong mechanical strength for greater than 50 lbs./2 ft. wind load and snow load withstanding and easy installation


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Customer Questions & Answers

83 Questions201 Answers

Customer Questions & Answers

100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems

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6 answers

Will this panel be able to charge a 3 twelve volt battery platform?

This question is from 100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
Asked by
Gash
Sw fla.
July 15, 2013
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Answers (6)

Asked by
In a meadow, taking a nap
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June 24, 2016
Answer: 
Yes, but whether it can charge it as fast as you use up the battery power depends on your consumption rate.
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Asked by
Syracuse, NY
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August 6, 2014
Answer: 
It will but the more batteries you have the longer it will take for charging. The formula is : The inverter determine how big a load you can power. The battery(s) determine how long you can run that load. And the panel(s) determine how long it takes to recharge the system after use.
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Asked by
Union City, California
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June 27, 2014
Answer: 
The 100 watt panel will charge a 6 amps per hour for 6 to 8 hours per day ANY 12 volt platform but the larger the platform, the longer it would take to get a full charge. I recomend 2 amp hours of battery for ever watt of charging solar panel. The batteries must be wired in paralell to make the Voltage 12 volts on the platform If you want a 24 volt platform, you would need to series 2 - 100 watt solar Read More
The 100 watt panel will charge a 6 amps per hour for 6 to 8 hours per day ANY 12 volt platform but the larger the platform, the longer it would take to get a full charge. I recomend 2 amp hours of battery for ever watt of charging solar panel. The batteries must be wired in paralell to make the Voltage 12 volts on the platform If you want a 24 volt platform, you would need to series 2 - 100 watt solar panels and use a controler setable to the 24 volt platform. Read Less
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Asked by
Arizona
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December 10, 2013
Answer: 
I'm assuming the three 12-volt batteries are in parallel. A lot would depend on the capacity of the battery bank. I believe this panel will charge a bank of three 12-volt batteries, but if they are seriously discharged I expect it would take awhile, and longer if the battery capacity is significant. If the battery bank capacity is significant, the panel might be enough to keep it on float, but it would Read More
I'm assuming the three 12-volt batteries are in parallel. A lot would depend on the capacity of the battery bank. I believe this panel will charge a bank of three 12-volt batteries, but if they are seriously discharged I expect it would take awhile, and longer if the battery capacity is significant. If the battery bank capacity is significant, the panel might be enough to keep it on float, but it would take quite a while to charge it. The panel puts out just over 5 amps in full sun. Read Less
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Asked by
Bassett, VA 24055, USA
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August 4, 2013
Answer: 
It should? The variables are how much sunlight you receive. 2 - 12V batteries is safe, 3 may take longer than 7-8 hours. With that said, if they are not discharged over 50% of capacity, you should be good to go. Hope this helps?
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July 16, 2013
Answer: 
Thank you for your interest in Grape Solar panels. There are a number of factors that play into whether a 100-watt panel will meet your expectations but in short, yes, a single GS-STAR-100W can charge 12 volt batteries if they are wired in parallel to create a 12 volt battery bank. For higher voltage battery banks you will need multiple 100-watt panels wired in series.
While it depends upon your exact Read More
Thank you for your interest in Grape Solar panels. There are a number of factors that play into whether a 100-watt panel will meet your expectations but in short, yes, a single GS-STAR-100W can charge 12 volt batteries if they are wired in parallel to create a 12 volt battery bank. For higher voltage battery banks you will need multiple 100-watt panels wired in series.
While it depends upon your exact geographic location and orientation of the panel, a single 100 watt panel will produce roughly 25-AmpHours per day. Depending upon the size of your batteries and how much power you plan on using per day, you may need multiple panels to keep your batteries topped off.
In order to prevent damage to the battery you should have a charge controller between it and your panel. If you don't have a charge controller already, you may wish to look at our 100-series kits which come with 100-watt panels, charge controllers, wires and, in most cases, inverters to get you up and running quickly. Read Less
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5 answers

How long are the leads from the panel

This question is from 100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
Asked by
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September 13, 2016
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Asked by
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October 26, 2016
Answer: 
~ 10 feet to controller/battery.
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Asked by
Johnstown, PA
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September 14, 2016
Answer: 
The leads are about 30 inches long.
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Asked by
Michigan
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Home Improvement Profile: DIYer
September 14, 2016
Answer: 
The wires are 33" long on all brands.
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September 14, 2016
Answer: 
900 mm, just under three feet.
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Asked by
Michigan
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Home Improvement Profile: DIYer
September 14, 2016
Answer: 
I believe they are 30 inches. Mine are installed so I cant measure but I,m pretty sure. They definitely are not short at least over 20.
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5 answers

Which would be better Mono or Poly-crystalline

This question is from 100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
Asked by
Palatka, Florida
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August 28, 2016
I am building an Amateur radio trailer and am wondering if mono or poly crystalline panels are better. I will have two banks of 6 volt gell cells hooked up series parallel, one for the house and one for the radios. I am retired and on a fixed income. I already have two 100 watt panels for the house but I am wondering which would be better for the radios. The house are poly-crystalline. I live in Florida and I seldome see freezing Temps.
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Answers (5)

August 30, 2016
Answer: 
There is very little practical difference between the panels, and the poly panels are an excellent value. The mono panels will produce slightly more and a noticeable amount over the course of a year, but not really enough to offset the cost in the long run.
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August 30, 2016
Answer: 
There is very little practical difference between the panels, and the poly panels are an excellent value. The mono panels will produce slightly more and noticeable amount over the course of a year, but not really enough to offset the cost in the long run.
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Asked by
Inglewood CA
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August 29, 2016
Answer: 
In very simplistic terms, the Poly-crystalline is cheaper to manufacture but a bit more subjective to heat. Most likely, nothing you would need to be concerned about. You can read more on the topic here, just avoid the sells pitch.
http://www.solarreviews.com/solar-energy/pros-and-cons-of-monocrystalline-vs-polycrystalline-solar-panels
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Asked by
Tampa FL.
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Home Improvement Profile: DIYer
August 29, 2016
Answer: 
Actually you are the only one that have first hand experience with the type of equipment you plan to operate from the solar array .I don't see any difference from your home to the trailer except the mounting of the pannels that have to be more sturdy to cope with movement and vibration .
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Asked by
S.W. Washington State
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Home Improvement Profile: DIYer
August 28, 2016
Answer: 
Monocrystalline panels have a slightly better conversion ratio, but the difference is slight. For the difference in price, you may be better off with polycrystalline panels
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5 answers

What type of solar panel do i need an how many do i need for 2000 sq ft house

This question is from 100-Watt Polycrystalline Solar Panel for RV's, Boats and 12-Volt Systems
Asked by
Corpus Christi Texas
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August 6, 2014
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Answers (5)

Asked by
Palm Springs, California
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March 20, 2016
Answer: 
You should select your solar panels by first determining your electrical needs. The size of your home has little to do with how much electricity you use. After you determine your electrical needs, you may then proceed to see how much room you'll have to install the panels, which may be related to the size of your home. From the nature of your question, I assume you may not have expertise in this area. Read More
You should select your solar panels by first determining your electrical needs. The size of your home has little to do with how much electricity you use. After you determine your electrical needs, you may then proceed to see how much room you'll have to install the panels, which may be related to the size of your home. From the nature of your question, I assume you may not have expertise in this area. I'd recommend that you consult a professional installer so as to insure the fact that your installation will meet all applicable electrical codes as well as building and safety requirements. Read Less
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Asked by
Eugene, OR
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Home Improvement Profile: Professional
November 2, 2015
Answer: 
This would require a custom system through your local Home Depot Pro-desk. For an actual quote please e-mail quotes@grapesolar.com and indicate your power or KWh and the store # or zip code of your local Home Depot.
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Asked by
Pahrump,Nevada
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March 7, 2015
Answer: 
Missouri wind and solar will help you build your system. They have all the wiring,type of system you will need. If you are doing this your self MW&S has video classes on how to install everything. It all depends on how much you use daily.
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Asked by
Union City, California
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Home Improvement Profile: Professional
August 6, 2014
Answer: 
It is not the Square footage but the Kilo Watt Hours you use. If you are doing an off grid system, and have Propane or wood for heat, cooking and hot water, the only real loads left are refrigeration, lighting (CFL or LED)Exhaust fans, microwave oven, Flat screen TV and electronics. For those, you would need 200 to 250 Kilo watt hours per month so let's calculate 250 Kilo Watt hours. 250,000 watt hours / Read More
It is not the Square footage but the Kilo Watt Hours you use. If you are doing an off grid system, and have Propane or wood for heat, cooking and hot water, the only real loads left are refrigeration, lighting (CFL or LED)Exhaust fans, microwave oven, Flat screen TV and electronics. For those, you would need 200 to 250 Kilo watt hours per month so let's calculate 250 Kilo Watt hours. 250,000 watt hours / 30 days = 6,033 Watt hours per day. Since one 100 watt panel will produce an average of 450 Watt hours per day 6,033 / 450 = about 14 - 100 watt panels and with 2 Amp hours per watt for Battery overnight usage, you would need 2,800 Amp hours of deep cycle battery storage. (24 - 115 Amp hour Batteries# You would also need 3 - 500 watt Charge controlers. Since i also have air conditioning, I use 3,200 watts of Solar panels and 6,400 amp hours of Deep Cycle 12 volt batteries and 7- 500 watt charge controlers. You will not be able to Air condition more than Two rooms with this small system that I use and when the days are shorter in the winter, you get about 1/2 the power but you also do not need air conditioning.
If you are "On-Grid" look at your utility meter bill for the Kilowatt hours used each month and divide buy 13.5 #.450X30) to get the number of panels you would need to be equivilant to what you use. Then you would need Grid tie Inverters or Micro inverters and it would be best to consult a licenced Solar installer to get you through the permit prosses from your city.
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Asked by
Syracuse, NY
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August 6, 2014
Answer: 
Before you decied what type of panel you need to decied what you want to power. If you want to power your whole house youwill need a bunch of panels. If you want some reasonable backup power for a power outage then one or two might do. Analyze how much open sunshine you get. The easyest way is to just look in the AM and PM and ask yourself where and how you would locate the panels. They work best in Read More
Before you decied what type of panel you need to decied what you want to power. If you want to power your whole house youwill need a bunch of panels. If you want some reasonable backup power for a power outage then one or two might do. Analyze how much open sunshine you get. The easyest way is to just look in the AM and PM and ask yourself where and how you would locate the panels. They work best in direct sunlight. Read Less
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Customer Reviews

Rated 4.8 out of 5 by 100 reviewers.
Rated 5.0 out of 5.0 by Very good value and well built I ordered 2 of these panels to replace some thin-film panels I purchased from another seller. For the price, these panels produce much more power ($/watt) and are much more solidly built. They are easy to mount and connect. The first panel was basically thrown into a box with little protection for shipment, but the second panel came in more protective packaging. Neither panel, however, arrived damaged. I have them paired (in series) with the Grape Solar 300W MPPT controller, also sold by Home Depot, to keep a small bank of 12V batteries charged - see pics. (Note: I can put them in series because the controller is MPPT.) Works wonderfully. August 13, 2016
Rated 5.0 out of 5.0 by Bought 4, all good I mounted them on a tilting rack, to follow the sun, manually. They do a fine job charging my 6 golf cart batteries on a sunny day. They charge a little on a cloudy day. The way I have them mounted, all 4 sets of wires come together in a beaker box. I cut the connectors off. Used 6-3 with ground wire. paired the conductors, red and black, for positive, white and ground for negative, for a better conduction 80 ft. August 2, 2016
Rated 5.0 out of 5.0 by Works great! Fully re-charges my deep cycle battery on most days. Used for lighting (2 LED's),12 volt cooler, & other applications, in my camper. Both Home Depot & Grape Solar were great when original faulty panel needed to be exchanged! Great customer service! Don't know how to add an image of my solar panel application? ... October 26, 2016
Rated 4.0 out of 5.0 by I'm not sure if it is my setup or the panels themselves but I am getting about 50% of the amperage out of 2 panels, hooked up in parallel, that I expected. Otherwise the panels appear well built. October 25, 2016
Rated 5.0 out of 5.0 by price vs one 20 watt replace I have a cracked 20 watt panel of four. The price 2 replace it cost almost $100. Then still only have 80 watts.This way I only have to worry 1 panel to set up.And only appr. 20lb. Others are Heavy 40 to 50. These will go on the house with others for backup and I can add tv more lites when electric goes off. I will use the 100 watt grape for the camper. I have used it for 2 days at home,charged the battery in 4hrs it was 12.45 and went to 12.73 .I checked after letting it rest for 2 hrs .next day it was at 12.71... at capacity For it. This was on sale ...109.00 October 13, 2016
Rated 5.0 out of 5.0 by great job>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>. just what I expected>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.. October 12, 2016
Rated 4.0 out of 5.0 by Solar Notice it carries a current 13.8 volt sunny or partly cloudy October 25, 2016
Rated 5.0 out of 5.0 by Grape 100 watt solar panel It's a very good panel and puts out exactly the power advertised! October 18, 2016
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