Green Sun Solar GSPV-305W (156M)66
Green Sun Solar GSPV-305W (156M)66
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SKU  PES-SPS-SOL-7313

Green Sun Solar GSPV-305W (156M)66

Green Sun Solar GSPV-305W (156M)66

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery
$180.00 USD
$0.01 $180.00 USD
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truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

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Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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Specifications

Power Rating 305W
Length 156 m

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Green Sun Solar GSPV-305W 305W Monocrystalline Solar Panel

Model GSPV-305W (156M)66 | Monocrystalline | 66 Cells | Mono | 1000V System Voltage

305W
Max Power Output
15.1%
Module Efficiency
66
Monocrystalline Cells

Product Overview

The Green Sun Solar GSPV-305W is a dependable monocrystalline solar panel designed for stable everyday energy production. It delivers a rated output of 305 watts and uses a 66-cell format for balanced electrical performance. The panel is built with a strong tempered glass front, durable aluminum frame, and weather-resistant encapsulation materials. Its compact 1790 x 990 x 40 mm size supports a wide range of rooftop and commercial installations. This model is a practical choice for buyers seeking reliable solar generation, long service life, and consistent output in demanding environments.

Key Benefits

Reliable power output: The module provides 305W rated performance for steady energy generation.

Monocrystalline efficiency: Monocrystalline cells support strong conversion performance in a compact footprint.

Durable construction: Tempered glass, EVA encapsulation, and a double-layer anodized aluminum frame improve durability.

Weather resistance: The panel is rated for harsh conditions, including strong wind and heavy snow loads.

Easy installation: MC4 connectors and 4mm² cables help simplify system integration.

How It Works

This solar panel converts sunlight into electricity through monocrystalline silicon cells arranged in a 66-cell configuration. When sunlight reaches the cells, the semiconductor material generates direct current for use in solar systems. The panel’s electrical design helps maintain stable voltage and current characteristics under standard test conditions. Its protective front glass, laminated layers, and sealed junction box support long-term outdoor operation. The frame and structural build are designed to withstand environmental stress while maintaining performance. In practical use, the module works as part of a complete PV system and feeds power through compatible MC4 connections.

Sunlight conversion: Monocrystalline cells absorb sunlight and produce usable direct current. The cell structure supports stable energy generation across daily operating conditions.

Power flow management: The panel’s rated voltage and current help match system design requirements. This supports efficient operation with compatible solar equipment.

Environmental protection: The tempered glass, EVA encapsulation, and sealed junction box protect internal components. These layers help preserve output in outdoor conditions.

Technical Specifications

Brand Green Sun Solar
Model GSPV-305W (156M)66
Technology Monocrystalline
Max Power 305W
Power Tolerance 0~5W
Nominal Voltage 34.26V
Nominal Current 8.90A
Open Circuit Voltage 40.25V
Short Circuit Current 9.69A
Cell Count 66 cells, 6 x 11
Cell Size 156 x 156 mm
Dimensions 1790 x 990 x 40 mm
Weight 20.0 kg
Front Cover 3.2 mm tempered glass
Back Cover TPT (Tedlar-PRT-Tedlar)
Encapsulant EVA (ethylene vinyl acetate)
Frame Double-layer anodized aluminum alloy
Junction Box IP65/IP67 compatible
Cables / Connectors MC4 connectors, 4mm² x 900mm cable
Maximum System Voltage 1000V DC
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
Maximum Wind Load 2400 Pa
Maximum Snow Load 5400 Pa
Application Class Class A
NOCT 45°C ± 2°C
Temperature Coefficient of Isc +0.049%/°C
Temperature Coefficient of Voc -0.340%/°C
Temperature Coefficient of Pmpp -0.430%/°C
Standard Test Conditions Irradiance 1000W/m², module temperature 25°C, AM 1.5

Certifications & Compliance

Certifications: Class A application rating and IP65/IP67 compatible junction box design.
Inverter Compatibility: Suitable for 1000V DC solar systems with MC4 connector-based integration.
Environmental: Built for -40°C to 85°C operation, 2400Pa wind load, and 5400Pa snow load.
Warranty: 10 years on materials and workmanship, plus 10 years at 90% output and 20 years at 80% output; the datasheet also states a 25-year linear power output warranty.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Green Sun Solar GSPV-305W 305W Monocrystalline Solar Panel

Model GSPV-305W (156M)66 | Monocrystalline | 66 Cells | Mono | 1000V System Voltage

305W
Max Power Output
15.1%
Module Efficiency
66
Monocrystalline Cells

Product Overview

The Green Sun Solar GSPV-305W is a dependable monocrystalline solar panel designed for stable everyday energy production. It delivers a rated output of 305 watts and uses a 66-cell format for balanced electrical performance. The panel is built with a strong tempered glass front, durable aluminum frame, and weather-resistant encapsulation materials. Its compact 1790 x 990 x 40 mm size supports a wide range of rooftop and commercial installations. This model is a practical choice for buyers seeking reliable solar generation, long service life, and consistent output in demanding environments.

Key Benefits

Reliable power output: The module provides 305W rated performance for steady energy generation.

Monocrystalline efficiency: Monocrystalline cells support strong conversion performance in a compact footprint.

Durable construction: Tempered glass, EVA encapsulation, and a double-layer anodized aluminum frame improve durability.

Weather resistance: The panel is rated for harsh conditions, including strong wind and heavy snow loads.

Easy installation: MC4 connectors and 4mm² cables help simplify system integration.

How It Works

This solar panel converts sunlight into electricity through monocrystalline silicon cells arranged in a 66-cell configuration. When sunlight reaches the cells, the semiconductor material generates direct current for use in solar systems. The panel’s electrical design helps maintain stable voltage and current characteristics under standard test conditions. Its protective front glass, laminated layers, and sealed junction box support long-term outdoor operation. The frame and structural build are designed to withstand environmental stress while maintaining performance. In practical use, the module works as part of a complete PV system and feeds power through compatible MC4 connections.

Sunlight conversion: Monocrystalline cells absorb sunlight and produce usable direct current. The cell structure supports stable energy generation across daily operating conditions.

Power flow management: The panel’s rated voltage and current help match system design requirements. This supports efficient operation with compatible solar equipment.

Environmental protection: The tempered glass, EVA encapsulation, and sealed junction box protect internal components. These layers help preserve output in outdoor conditions.

Technical Specifications

Brand Green Sun Solar
Model GSPV-305W (156M)66
Technology Monocrystalline
Max Power 305W
Power Tolerance 0~5W
Nominal Voltage 34.26V
Nominal Current 8.90A
Open Circuit Voltage 40.25V
Short Circuit Current 9.69A
Cell Count 66 cells, 6 x 11
Cell Size 156 x 156 mm
Dimensions 1790 x 990 x 40 mm
Weight 20.0 kg
Front Cover 3.2 mm tempered glass
Back Cover TPT (Tedlar-PRT-Tedlar)
Encapsulant EVA (ethylene vinyl acetate)
Frame Double-layer anodized aluminum alloy
Junction Box IP65/IP67 compatible
Cables / Connectors MC4 connectors, 4mm² x 900mm cable
Maximum System Voltage 1000V DC
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
Maximum Wind Load 2400 Pa
Maximum Snow Load 5400 Pa
Application Class Class A
NOCT 45°C ± 2°C
Temperature Coefficient of Isc +0.049%/°C
Temperature Coefficient of Voc -0.340%/°C
Temperature Coefficient of Pmpp -0.430%/°C
Standard Test Conditions Irradiance 1000W/m², module temperature 25°C, AM 1.5

Certifications & Compliance

Certifications: Class A application rating and IP65/IP67 compatible junction box design.
Inverter Compatibility: Suitable for 1000V DC solar systems with MC4 connector-based integration.
Environmental: Built for -40°C to 85°C operation, 2400Pa wind load, and 5400Pa snow load.
Warranty: 10 years on materials and workmanship, plus 10 years at 90% output and 20 years at 80% output; the datasheet also states a 25-year linear power output warranty.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing
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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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