PERC Solar Cells : An Overview


Solar cell technology continues to evolve and improve. PERC solar cells are a relatively new innovation in the solar industry – in this article, we’ll dive into what PERC solar cells are and how they impact solar panel technology.

What are PERC Solar Cells?
PERC can stand for either Passivated Emitter and Rear Cell or Passivated and Rear Contact Emitter. A PERC solar cell is essentially a more efficient solar cell at its heart, making it easier to convert sunlight into usable energy through solar panels equipped with PERC cells.PERC technology boosts efficiency through the addition of a layer to the back of a traditional solar cell, which provides several benefits to the cell’s production.


Commendable are the performance gains they offer over standard solar cells, PERC solar cells are a fascinating technology. However, shifting to PERC production does not entail many changes to existing cell manufacturing processes. The production of higher efficiency PERC cells at a low cost is a relatively easy shift for manufacturers.

How are PERC solar cells different from standard solar cells?

A PERC solar cell is not much different in construction from a typical photovoltaic solar cell. Both types of solar technology use silicon wafers to generate a flow of electrons using incoming solar radiation, and the cell types are very similar in the overall construction. The main difference between PERC cells and typical monocrystalline photovoltaic cells is the addition of a passivation layer on the back surface, which is a layer of material on the back of the cells which offers three major advantages which improve cell performance.

How does a back surface passivation layer lead to gains in solar cell efficiency? Here are the three ways the passivation layer in a PERC solar cell increases overall efficiency:-

  1. Reflection of light back through the cell
  2. Reduced electron combination
  3. Reduced heat absorption

Benefits of PERC technology for solar shoppers

Solar panels designed with PERC technology allow solar installations to be more energy-dense. It means that with more regular solar panels, you will produce the same amount of energy with less PERC solar panels. Therefore, you will reduce your costs by having fewer solar panels for your installation. Additionally, the fewer panels you need, the more flexibility you have on your roof to position your panels. If suitable roof space is limited, using PERC solar panels or any high-efficiency panel product can make a solar installation capable of the power you need a reality.

Reducing the number of solar panels you need has the added benefit of reducing your solar panel installation’s balance-of-system (BOS) price. BOS costs are typically any costs involved in components of solar installation that are not the solar modules themselves. Inverters, racking and wiring all factor into your BOS costs, and the fewer panels you need, the fewer complementary components you’ll need as well.

Choose Intelligently

PERC solar cells are an exciting technology in the solar industry and can be a solution for property owners looking to maximize energy production with high-efficiency panels. Visit the nearby Tenaga stores to gain maximum benefits of potential solar panels.