SunPower® Performance Series (P-Series) solar panels combine the affordability of front contact cells with SunPower’s trusted quality and durability, resulting in a panel that offers superior efficiency, power, yield and reliability compared to Conventional Panels1.

  • 1. Definition of "Conventional Panel" is a 310W panel, 16% efficient, approx. 2 m2, made with Conventional Cells. Conventional Cells are silicon cells that have many thin metal lines on the front and interconnect ribbons soldered along the front and back.

Engineered for reliability

An innovative shingled design addresses many of the reliability challenges of traditional front contact panels. Fragile ribbons and solder bonds are removed to expand the active cell area, flexible and redundant connections keep energy flowing, and lower peak cell temperatures enable longer panel life.


Top performer in independent reliability testing

In the 2017 DNV GL PV Module Reliability Scorecard, SunPower Performance Series panels were named as a top performer in all five reliability tests conducted which include: thermal cycling, damp heat, humidity-freeze, dynamic mechanical load and Potential Induced Degradation.

Maximized energy production


Compared to Conventional Panels, P-Series panels offer 7% higher panel efficiency2 and up 17% more energy over the first 25 years of operation.3 P-Series panels also benefit from a unique parallel circuit design that delivers more energy in row-to-row shading, enabling greater ground or roof coverage.

  • 2. Compared to a Conventional Commercial Panel (310W, 16% efficient, approx. 2m2).
  • 3. SunPower 405W compared to a Conventional Panel on same sized arrays (310W, 16% efficient, approx. 2m2) 0.4%/yr degradation (Performance Series Review Leidos. 2017).

Greater peace of mind

P-Series combines conventional cell technology with 30+ years of SunPower materials and manufacturing expertise to deliver more energy, reliability and savings. P-Series offers added protection in the form of our Complete Confidence Panel Warranty, delivering 25-year Power, Product and Service backing.


Ground installations

SunPower's solar power plant technology and services optimize land use and energy production to achieve your project goals.


SunPower Power Plant Solutions >


Rooftop installations

SunPower's versatile rooftop system configurations help minimize up-front costs while offering excellent value, quality, and reliability for commercial customers.


SunPower Commercial Solar Solutions >

Frequently asked questions about SunPower P-Series panels

How does a SunPower Performance Series panel differ from SunPower® Maxeon® cell-based panel technology?

SunPower® Performance Series (SunPower P-Series) panels use front contact crystalline cells, as opposed to the Maxeon cell-based technology used in SunPower® E-Series and X-Series panels.

How do SunPower® Performance Series® panels differ from conventional front contact panels?

SunPower Performance Series (SunPower P-Series) panels differ from Conventional Panels in a variety of ways. First, we laser cut each SunPower P-Series cell into six strips and layer them in a shingled configuration to create a 'hypercell'. This shingled hypercell allows us to fit more active cell area into each panel, boosting power and efficiency. Second, the P-Series cells are connected with a conductive adhesive borrowed from the aerospace industry to offer multiple and redundant paths for electricity flow. This allows us to remove the front contact ribbons and solder bonds found in conventional cells that can block active cell area and deteriorate over time, leading to cell failures and power deficits. Finally, SunPower P-Series panels feature a unique parallel circuit architecture that significantly limits power loss in shade and soiling. The result is a superior shingled panel constructed with commodity cells, outperforming conventional panels in efficiency, performance and reliability.

What is the typical performance advantage gained from using SunPower Performance Series panels in my installation?

We built the P-Series panels for high reliability, maximum efficiency and lower degradation—driving an estimated 17% more energy yield in a fixed space over the first 25 years of operation when compared to conventional panels4.

What is the typical cost advantage of using SunPower Performance Series panels in my installation?

Costs vary from project to project. However, P-Series panels generally have a price point that is competitive with Conventional Panels and below the cost of SunPower Maxeon cell-based panels. Additionally, Performance Series panels take advantage of many of the materials and processes used to produce nearly 25 million Maxeon panels, delivering the same trusted SunPower quality and reliability at a fraction of the cost.

What types of applications are suitable for SunPower Performance Series panels?

SunPower Performance Series panels can be incorporated into rooftop, ground-mounted and carport applications, including the SunPower® Oasis® Power Plant for large-scale ground-mounted installations and the SunPower® HelixTM Platform, which delivers fully-integrated solutions for commercial rooftop, carport and tracker installations

SunPower Maxeon panels have the best warranty in the industry. How does the Performance Series panel warranty compare?

We're confident that P-Series is the top shingling technology deployed in the market to date, and as such, it has the same industry-leading Complete Confidence Panel Warranty as our Maxeon cell-based panels—delivering 25-year Power, Product and Service backing.

  • 4. SunPower 405W compared to a Conventional Panel on same sized arrays (310W, 16% efficient, approx. 2 m2), 0.4%/yr degradation (Performance Series Review Leidos. 2017).