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Grape Solar GS-STAR-100W Polycrystalline Solar Panel, 100-watt

4.2 4.2 out of 5 stars 181 ratings

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Brand HQST
Material Tempered Glass, Aluminum
Item Weight 19.6 Pounds
Efficiency High Efficiency
Connector Type MC4

About this item

  • Positive and Negative leads equipped with MC4 connectors
  • Polycrystalline panel with anodized aluminum frames and tempered glass for outdoor use and superior performance
  • Two diode junction box for enhanced performance
  • Outstanding electrical performance under high temperature and weak light environments
  • Can withstand snow and wind loads up to 50 lbs./ft2

Customer ratings by feature

Value for money
4.0 4.0
Easy to install
4.0 4.0

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Grape Solar GS-STAR-100W Polycrystalline Solar Panel, 100-watt
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Price$12.99$77.00$73.99$79.95$64.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Monday, Apr 1
Get it Mar 28 - Apr 1
Get it Mar 28 - Apr 2
Customer Ratings
Value for money
4.0
4.2
4.6
Sold By
FellDen
Newpowa America
HQSTSolar
QL Equipment
Mighty Max Battery
connector type
MC4
MC4
MC4
MC4
material
Aluminum, Tempered Glass
Polycrystalline Silicon
Monocrystalline Silicon
Monocrystalline Silicon
Polycrystalline Silicon
Aluminum
wattage
100 watts
100 watts
100 watts
weight
19.6 pounds
14.67 pounds
9.9 pounds
19 pounds

From the manufacturer

Grape Solar GS-STAR-100W Polycrystalline Solar Panel - Features

Grape Solar 100 Watt Solar Panel

The Grape Solar 100 Watt Solar Panel is the most cost effective module in its class. This panel is designed to be used as a battery charger when operated in conjunction with a Charge Controller. The use of a Charge Controller (not included) will optimize the panel performance and regulate the voltage of the output for safe battery charging.

This 100 Watt panel is ideal for charging any appliance/machinery including: Emergency Backup, RVs, Pumps, Gates, Electric Fences, Lighting, 12 Volt Battery Charging and much more.

High Efficiency Solar Cells for Maximum Power Generation

High efficiency solar cells (approx. 16.8%) with quality silicon material for high module conversion efficiency and long term output stability and reliability. Rigorous quality control to meet the highest international standards. Outstanding electrical performance under high temperature and weak light environments.

Sturdy Frame and Protective Glass Sheet

Unique frame design with strong mechanical strength for greater than 50 pounds/feet2 wind load and snow load withstanding and easy installation. High transmittance, low iron tempered glass with enhanced stiffness and impact resistance.

MC4 Connectors

Positive and Negative leads equipped with MC4 connectors for a positive, weather tight connection.

Looking for specific info?

Product Description

The Grape Solar 100-Watt Polycrystalline PV Solar Panel uses high efficiency solar cells (approx. 16.8%) made from quality silicon material for high module conversion efficiency and long term output stability and reliability. Virtually maintenance free. High transmittance, low iron tempered glass for durability and enhanced impact resistance.

Product information

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Grape Solar GS-STAR-100W Polycrystalline Solar Panel, 100-watt


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Customer reviews

4.2 out of 5 stars
4.2 out of 5
181 global ratings

Customers say

Customers like the versatility, performance, value, quality, and energy of the solar panel. For example, they mention the setup was straightforward, they work well, and are good value for the money. That said, they say the panels are solid, well-finished, and produce lots of usable power.

AI-generated from the text of customer reviews

55 customers mention54 positive1 negative

Customers are satisfied with the quality of the solar panel. They mention that it charges their batteries full pretty early in the day, it's well-finished, and solid. Some say that the panels themselves were not damaged and are working perfectly.

"panels seem well built and strong, one set I ordered was damaged in shipping quite badly however the glass wasn't broken and the panel still tested..." Read more

"...Its firm, sturdy and well-built, certainly feels it will last 25 years or more...." Read more

"...panels are pretty strong frame but panels never put out the full 100 watts in full sun but work good for the price" Read more

"...as they are competitively priced, shipped very quickly, are high quality construction and they perform beautifully...." Read more

31 customers mention31 positive0 negative

Customers are satisfied with the performance of the solar panel. They mention that it works well, produces 5 to 5.5 amps, and is well-made. Some customers also mention that the panels have been working well for 7-8 months, with no issues.

"...quite badly however the glass wasn't broken and the panel still tested fine electrically, very tough, by the damage I didn't expect the panel to..." Read more

"...They have performed flawlessly over the months and provide all I need and then some...." Read more

"...shipped very quickly, are high quality construction and they perform beautifully...." Read more

"...They are top quality and had no issues other than bird crapping on them sometimes. Very durable...." Read more

19 customers mention19 positive0 negative

Customers are satisfied with the value of the solar panel. They mention that it provides great quality for the price, and is a great product for RVs.

"...but panels never put out the full 100 watts in full sun but work good for the price" Read more

"...have ordered two HQST 100 watt 12 volt solar panels as they are competitively priced, shipped very quickly, are high quality construction and they..." Read more

"...Overall, an excellent quality solar panel for a reasonable price." Read more

"...I have 3 with a 30 amp charge controller. Best price for good quality." Read more

12 customers mention12 positive0 negative

Customers are satisfied with the energy produced by the solar panels. They say that they provide all the power they need for their off-grid tiny house, and that they deliver the advertised output power. Customers also mention that the panels put out decent power for their size and that the design keeps them charging on cloudy days. Overall, customers are happy with the product and recommend it to others.

"...I really like the design that keeps them charging on those cloudy days and when I would..." Read more

"...top of our Toyota Sienna van because it is so nice to have plenty of clean electric power when on the road and camping, etc...." Read more

"...These panels PUT OUT 100 watts / 6 plus amps as described. They are top quality and had no issues other than bird crapping on them sometimes...." Read more

"...They produce their rated power and are well made...." Read more

6 customers mention6 positive0 negative

Customers like the versatility of the solar panel. They say that the setup was straightforward, with no issues with installation. The panels come with good instructions for newbies and have MC4 connectors already on the leads. They also say that it works as advertised and makes for a nice, passive setup.

"...With a small inverter and the setup was rather straightforward. The only problem is that I am only getting 60% of the power it is rated for...." Read more

"...They come with good instructions for newbies and have MC4 connectors already on the leads for the more advanced folks...." Read more

"...Paired with an MTTP controller, this makes for a nice, passive setup." Read more

"Very well made solar panels. I had absolutely no issues with the installation of them on my barn...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the efficiency of the solar panel. They mention that it works as specified, has good efficiency, and is very efficient.

"...camper batteries, practicing for bigger system to power home, more efficient once a few soldering defects were repaired, better than specifications..." Read more

"Works as specified. Good efficiency. Using with 3 other 135w panel sets." Read more

"Very efficient solar panel...." Read more

Solid, Well-built Solar Panels
5 Stars
Solid, Well-built Solar Panels
I purchased one panel 6 months ago and was very satisfied. First it was well packaged the leads was just the right length to connect with other panels. Its firm, sturdy and well-built, certainly feels it will last 25 years or more. For testing and review purposes I connected the solar panel independently from an array for 7 days to measure the power generated. 5 out of the 7 days it peaked to 97.8 watts on sunny days and 60 to 70 watts on cloudy days.After looking at other similar panels on Amazon I decided to purchase 2 more panels expecting to get the same results. Before I completed installation I realize the 2 panels were a few inches shorter than the first one I bought. It was a bitter sweet moment because they don't match but I got extra room to install more. I did click on the Buy Again button from the first one but not realizing the length has changed. I am however getting the same watts and amps from each panel as the first one.In a few months I'm going for the 4 pack, they definitely worth it.
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Reviewed in the United States on March 16, 2020
One person found this helpful
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Reviewed in the United States on January 4, 2020
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5.0 out of 5 stars Solid, Well-built Solar Panels
Reviewed in the United States on January 4, 2020
I purchased one panel 6 months ago and was very satisfied. First it was well packaged the leads was just the right length to connect with other panels. Its firm, sturdy and well-built, certainly feels it will last 25 years or more. For testing and review purposes I connected the solar panel independently from an array for 7 days to measure the power generated. 5 out of the 7 days it peaked to 97.8 watts on sunny days and 60 to 70 watts on cloudy days.

After looking at other similar panels on Amazon I decided to purchase 2 more panels expecting to get the same results. Before I completed installation I realize the 2 panels were a few inches shorter than the first one I bought. It was a bitter sweet moment because they don't match but I got extra room to install more. I did click on the Buy Again button from the first one but not realizing the length has changed. I am however getting the same watts and amps from each panel as the first one.

In a few months I'm going for the 4 pack, they definitely worth it.
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Customer imageCustomer image
One person found this helpful
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Reviewed in the United States on September 4, 2019
Reviewed in the United States on May 9, 2017
12 people found this helpful
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Reviewed in the United States on November 7, 2021
Reviewed in the United States on July 1, 2018
One person found this helpful
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Reviewed in the United States on July 20, 2017
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5.0 out of 5 stars Great quality panels for our home DIY solar setup!
Reviewed in the United States on July 20, 2017
We purchased a couple of these solar panels and compared them to the Windy Nation 100 Watt 12 Volt Polycrystalline Solar Panels and found that at least for the panels that we received, they produced a similar number of watts with the same sun exposure. The HQST and the Windy Nation Panels are all very good quality and well built. Probably the only difference is that the Windy Nation panels are more expensive and the MC4 cables are a little longer. We eventually purchased 18 more HQST panels and we hooked up 20 of these panels to create a 24V 2kW system on top of our garage. The 20 panels generate post-inverter about 11kWh per day during sunny days in Northern California that we can use or feed back into the grid. We never measured how much inverter loss there is though. Most of the panels face south, but we also face some of the panels west because electricity prices are much higher for us in the late afternoon. I'm happy with their performance, as it has reduced our electricity bill by about $100 per month, so the system should pay for itself in a couple of years! We would install more, but we have run out of easily accessible roof space.
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57 people found this helpful
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Reviewed in the United States on May 5, 2015

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4.0 out of 5 stars Four Stars
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