Residential vs. Commercial Solar Panels: What’s the Difference?

When comparing different brands of solar panels, you will notice that some models are described as “residential”, while others are described as “commercial”. However, this is just a naming convention for different panel sizes, and both types are composed of the same building blocks: solar photovoltaic cells.

solar panels on a residential rooftop

via Berkshire Photovoltaic Services Inc

A residential solar panel will normally have 60 cells, while a commercial panel has 72 cells. 60-cell solar panels are preferred in home installations since they use roof space more efficiently thanks to their compact design.

On the other hand, 72-cell panels are preferred in commercial and industrial buildings with abundant roof area, where larger panels can be installed with ease. However, commercial panels will work just fine on some homes, and the same applies for residential panels used in commercial or industrial buildings.

As we discussed in a previous article, solar cells can be classified into monocrystalline or polycrystalline, depending on their material structure at the microscopic level.

Read more

6 Common Mistakes to Avoid When Installing Solar Panels

Solar panels are very durable, and leading brands are now offering them with product warranties of up to 25 years. They also save you thousands of dollars in power bills during their lifetime, and their upfront cost becomes small in comparison. However, you will only achieve good results with solar panels if they are installed properly.

Here we will discuss some common mistakes when installing solar panels, and how they can affect the performance and service life of your system.

  • Installing solar panels in shaded areas of your roof.
  • Not using the ideal orientation for your solar panels.
  • Wiring panels with different orientations in the same circuit.
  • Installing too many panels.
  • Installing too few of them.
  • Hiring unqualified solar companies for your project.

Read more

OneRoof: The New SunPower Solar Roof: The Ultimate Guide

SunPower is the brand that offers the most efficient solar panels in the industry, converting up to 22.8% of sunlight into electricity.

If you’re looking for a combined roof plus solar system, SunPower now offers OneRoof, which is specially designed for new construction homes and/or complete roof replacements.

  • Unlike other solar roofs, the SunPower OneRoof does not use shingles or tiles with built-in photovoltaic cells.
  • Instead, SunPower developed a roofing system that attaches directly to their solar panels, taking advantage of their high efficiency.

In other words, the SunPower OneRoof does not mimic the appearance of a traditional roof without solar panels. Instead, it converts solar modules into a roofing system, allowing a faster installation. The OneRoof is an excellent option for new homes, and if you’re considering solar panels along with a roof replacement.

Read more