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SKU PES-SPS-SOL-19037

Sunceco SEM 315 Diamond

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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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.

Sunceco SEM 315 Diamond 315W Monocrystalline Solar Panel

Model SEM 315 Diamond | Monocrystalline Silicon | 72 Cells | Monocrystalline | 1000V System Voltage

315 Wp

Max Power Output

18.19%

Module Efficiency

Mono

Solar Technology

Product Overview

The Sunceco SEM 315 Diamond is a high-quality monocrystalline solar panel built for dependable performance and long service life. It is designed for residential and commercial solar projects that need steady output and strong reliability. This solar panel offers 315 Wp of maximum power, with a module efficiency of 18.19%. Its positive power tolerance supports consistent output in real-world use. The durable construction includes tempered glass, an anodized aluminium frame, and an IP67 junction box. With a 15-year product warranty and long-term power warranty coverage, this panel is a practical choice for efficient solar energy generation.

Key Benefits

High Power Output: Delivers 315 Wp, making it suitable for efficient energy production across many solar installations.

Strong Efficiency: Offers 18.19% efficiency, helping maximize energy yield from available roof or ground space.

Durable Construction: Uses tempered glass, anodized aluminium framing, and robust weather protection for long-term reliability.

Positive Power Tolerance: Supports 0 to +1.5% tolerance, which helps maintain dependable system performance.

Low-Light Performance: Performs well in reduced irradiance conditions, supporting output during cloudy or less intense sunlight.

How It Works

This monocrystalline solar panel converts sunlight into electricity through advanced photovoltaic cells. The module captures solar radiation and produces direct current power for use in a solar energy system. Its electrical design supports stable operation at standard test conditions and nominal module operating temperature. The panel is also engineered to maintain reliable output across a wide temperature range. Strong materials and sealed components help protect internal connections from dust, moisture, and environmental stress. That makes the panel suitable for long-term outdoor use in demanding conditions.

Photovoltaic Conversion: Sunlight is absorbed by the monocrystalline cells. The cells generate DC electricity for solar applications.

Power Regulation: The module operates at a defined Vmpp and Impp range. This supports stable power delivery under standard conditions.

Environmental Protection: Tempered glass, an IP67 junction box, and a sealed frame improve durability. These features help the panel handle outdoor exposure.

Technical Specifications

Brand	Sunceco
Model Number	SEM 315 Diamond
Technology	Monocrystalline Silicon
Maximum Power (Pmax)	315 Wp
Voltage at Maximum Power (Vmpp)	36.09 V
Current at Maximum Power (Impp)	8.73 A
Open Circuit Voltage (Voc)	43.06 V
Short Circuit Current (Isc)	9.18 A
Panel Efficiency	18.19%
Power Range	315 ~ 345 Wp
Efficiency Range	18.19 ~ 19.92%
Maximum Power at NMOT	235 W
Voltage at Maximum Power at NMOT	32.87 V
Current at Maximum Power at NMOT	7.15 A
Open Circuit Voltage at NMOT	40.02 V
Short Circuit Current at NMOT	7.60 A
Power Tolerance	0 / +5 W and 0 ~ +1.5%
Maximum System Voltage	1000 V
Temperature Coefficient of Pmax	-0.308 %/°C
Temperature Coefficient of Voc	-0.243 %/°C
Temperature Coefficient of Isc	0.047 %/°C
Nominal Operating Cell Temperature	42 ± 3 °C
Operating Temperature Range	-40 °C to 85 °C
Module Dimensions	1762 x 983 x 35 mm
Weight	19.5 kg
Glass Type	Tempered Glass, 3.2 mm
Frame Type	Anodized Aluminium
Junction Box Protection	IP67
Connector Type	MC4
Cable Crossection	4 mm2
Country	United States
Seller Name	Sunceco Inc.

Certifications & Compliance

Certifications: CE-Compliant, IEC 61215-1, IEC 61215-1-1, IEC 61215-2, IEC 61730-1, IEC 61730-2, application class A, Safety Class II, UL 1703.
Environmental: PID free, salt mist resistant, ammonia corrosion resistant, dust and sand abrasion resistant, 3800 Pa wind load, 5400 Pa snow load, 35 mm hail resistance at 97 km/h.
Warranty: 15 Years manufacturing warranty, 12 Years for 90% power output, and 25 Years for 80% power output.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

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?

Sunceco SEM 315 Diamond 315W Monocrystalline Solar Panel

Model SEM 315 Diamond | Monocrystalline Silicon | 72 Cells | Monocrystalline | 1000V System Voltage

315 Wp

Max Power Output

18.19%

Module Efficiency

Mono

Solar Technology

Product Overview

Key Benefits

High Power Output: Delivers 315 Wp, making it suitable for efficient energy production across many solar installations.

Strong Efficiency: Offers 18.19% efficiency, helping maximize energy yield from available roof or ground space.

Durable Construction: Uses tempered glass, anodized aluminium framing, and robust weather protection for long-term reliability.

Positive Power Tolerance: Supports 0 to +1.5% tolerance, which helps maintain dependable system performance.

Low-Light Performance: Performs well in reduced irradiance conditions, supporting output during cloudy or less intense sunlight.

How It Works

Photovoltaic Conversion: Sunlight is absorbed by the monocrystalline cells. The cells generate DC electricity for solar applications.

Power Regulation: The module operates at a defined Vmpp and Impp range. This supports stable power delivery under standard conditions.

Environmental Protection: Tempered glass, an IP67 junction box, and a sealed frame improve durability. These features help the panel handle outdoor exposure.

Technical Specifications

Brand	Sunceco
Model Number	SEM 315 Diamond
Technology	Monocrystalline Silicon
Maximum Power (Pmax)	315 Wp
Voltage at Maximum Power (Vmpp)	36.09 V
Current at Maximum Power (Impp)	8.73 A
Open Circuit Voltage (Voc)	43.06 V
Short Circuit Current (Isc)	9.18 A
Panel Efficiency	18.19%
Power Range	315 ~ 345 Wp
Efficiency Range	18.19 ~ 19.92%
Maximum Power at NMOT	235 W
Voltage at Maximum Power at NMOT	32.87 V
Current at Maximum Power at NMOT	7.15 A
Open Circuit Voltage at NMOT	40.02 V
Short Circuit Current at NMOT	7.60 A
Power Tolerance	0 / +5 W and 0 ~ +1.5%
Maximum System Voltage	1000 V
Temperature Coefficient of Pmax	-0.308 %/°C
Temperature Coefficient of Voc	-0.243 %/°C
Temperature Coefficient of Isc	0.047 %/°C
Nominal Operating Cell Temperature	42 ± 3 °C
Operating Temperature Range	-40 °C to 85 °C
Module Dimensions	1762 x 983 x 35 mm
Weight	19.5 kg
Glass Type	Tempered Glass, 3.2 mm
Frame Type	Anodized Aluminium
Junction Box Protection	IP67
Connector Type	MC4
Cable Crossection	4 mm2
Country	United States
Seller Name	Sunceco Inc.

Certifications & Compliance

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.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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