Out of stock

CertainTeed 315W Solar Panel 120 Cell CT-SERIES CT315HC11-04

price as of December 10
Solar Loan from 6.99%
All CertainTeed products All 315 Watt Panels


Rated Power Output 315 W
Voltage (VOC)39.7V
Number of cells120
Cell TypeMonocrystalline
Rated Efficiency19%
Connector TypePolarized MC compatible connectors
Backsheet Colorblack
Frame Colorblack
Dimensions LxWxH65.95 x 39.06 x 1.38 in
Weight40.8 lbs
Manufacturer Part #CT315HC11-04
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty10/25 years see manufacturer
Delivery Time 5-7 business days

About product

Certainteed CT-SERIES 315W is an aesthetically attractive all-black module that not only looks good, but also shows outstanding performance. The module employs half-cut 6″ solar cells that are tightly stacked together leaving almost no gaps, which gives the panels a solid look. The cells are protected by a 3.2 mm layer of tempered glass. It is high transmission and has an anti-reflective coating, making solar energy harvesting more efficient. 3 bypass diodes allow this model to perform better in partial shade, making it an optimal choice for dealing with the issue.

  • Power Output: 315 Watts
  • 120 Cell, Monocrystalline
  • 3 Bypass Diodes
  • Polarized MC compatible connectors
  • 1500 VDC
  • Black Frame, Black Backsheet

Outstanding 19% efficiency

Certainteed CT-SERIES 315W is a monocrystalline module with an efficiency reaching 19%, which is not very far from the products of top manufacturers. The model has a low temperature coefficient of -0.37%, meaning that it loses just 0.31% for every 1.8°F above 77°F. Superb efficiency and decreased weather-driven losses result in higher final energy output.

Panel that will survive any storm

This solar panel can operate in very harsh settings. A 35 mm anodized aluminum frame is rigid enough to support heavy snow loads. The front side of the module can take a load of up to 5,400 Pa or 112 lbs/ft2, while the back is good at resisting winds of up to 2,400 Pa or 50 lbs/ft2. The solar cells are protected by a 3.2 mm layer of tempered glass.

25-year product and performance warranty

Certainteed CT-SERIES 315W is also degradation-resistant. Certainteed guarantees that the real output of the module will not go below 97% during the first year. Following year one, the annual degradation rate will be limited to 0.71%. By the end of year 25 your panels will retain at least 80% of their nameplate capacity. Certainteed includes a standard 10 year product warranty for all of their solar panels.


65.95 x 39.06 x 1.38 inches


40.8 lbs

Reviews & Questions

  • Reviews (3)
  • Questions (3)
As always, great service and timely delivery. thanks guys
Yasser Elshawy
10/12/2021 12:35 pm
all-black, highly efficient and very easy to handle at 40 lbs a module. love the fact that they are assembled right here, in California.
Huff Huff
10/07/2021 07:14 pm
Some companies offer multiple warranties for different system components. Certainteed gives you one that already covers everything, even installation, if you work with their installers. That’s what draws me most to their products
Skyler Palmer
09/23/2021 09:34 am

Leave a review

Can you confirm that it is a US made product?
Kerry M
10/13/2021, 15:19
Yes, Certainteed solar panels are manufactured in the USA.
I’ve read about Certainteed certified installers. What are the advantages?
Jess Coleman
10/03/2021, 09:18
If your system is installed by a CertainTeed-credentialed solar installer, the warranty willalso cover expert evaluation of the system to determine the root of the issue, shipping a replacement product and removing or replacing the faulty product.
what is the power tolerance of this module?
Kiran Mills
09/17/2021, 09:36
This module has an output tolerance of -0% / + 3% .