Solar energy manufacturers are always looking for new ways to make photovoltaic cells more efficient. For this reason,there are different types of solar panel technologies on the market for customers to choose from Solar Panel Lahore offer different levels of efficiency and reliability.
In this area the PERC cell, known as the “passive emitter and back contact”, is becoming more and more common.
How does it work?
It is an iteration of conventional cells with the addition of an extra layer on the inside of the back side which allows some of the sunlight to be reflected back into the solar cell. The layer gives the sun’s rays a second chance to be absorbed and converted into energy. This change makes PERC solar cells 6 to 12% more efficient than conventional solar panels.
While PERC solar panels are a step above other conventional panel types, SUNLIFE, or “interdigitated back contact” panels are a step above in terms of efficiency, energy efficiency and reliability.
Because our SUNLIFE panels produce more energy and are more reliable
Most solar panels, including PERC ones, use metal ribbons to connect the cells. These metal ribbons expand in heat and contract in cold, creating a “stress” that can cause the ribbons to disconnect from the cell or the cells to rupture, decreasing energy output for the entire system.
SunPower Maxeon cells have a thick layer of tinned copper on the back that holds the cell together, making it extremely durable. Maxeon cells are over 20% more efficient than PERC panels and eliminate the primary mechanisms that cause power loss and solar cell failure, namely cracks in the cells or electrical connections and corrosion.
Backed by this technological and scientific evidence, we at 3ee are so confident in solar cell technology that we offer a full 25-year manufacturer’s warranty, the best in the industry.
Pros and cons of PERC and SUNLIFE solar cells
In any case we offer our customers panels made with both PERC and Maxeon technology. Both have their pros and cons. Here’s a quick rundown on each:
Advantages of PERC technology
- They are produced like conventional solar cells, i.e. using existing equipment.
- They offer greater efficiency than non-PERC panels, meaning fewer panels are needed to produce the same amount of electricity.
Disadvantages of PERC technology
Most PERC solar panels have metal strips running through them, which means they’re more likely to break down and lose their ability to generate power. However, we reduce this vulnerability in our Performance Series PERC panels by replacing traditional metal strips with a super-strong, conductive adhesive that durably flexes to withstand temperature changes. P-series panels generate 35% more energy over 25 years in the same footprint compared to other types of PERC panels.
Advantages of SUNLIFE technology
- High efficiency solar panels that lower installation costs and maximize the amount of energy produced.
- Greater efficiency means fewer panels needed, leaving room to add panels if, for example, you add an electric vehicle.
- Lower degradation rate than conventional panels. SunPower ® Maxeon panels have a two to three times lower rate of degradation than conventional panels. That means more power over the life of the system.
- Better performance at hotter temperatures and using more of the light spectrum to create more energy, even early in the morning or late at night.
- Cell-level hotspot protection boosts performance in the shade.
Disadvantages of SUNLIFE technology
There really aren’t many downsides when it comes to SUNLIFE technology. While it may have a higher initial cost, SUNLIFE generates a higher return on investment over time because SunPower systems using this technology produce up to 55 percent more energy than a conventional system of the same size in the first 25 years. They’re also backed by SunPower’s industry-leading warranty, so while initial costs may be higher, these systems generate more energy, providing greater savings over time.
This is great news for homeowners like you who naturally want a solar PV system that generates as much energy as they can afford, or that fits on their roof. The more energy generated, the faster a solar system offsets its initial costs, and the sooner the maximum money savings begins.
If you would like to learn more about every aspect, even technical, concerning the production of energy from Sunpower solar panels, contact with Solar companies in Pakistan with confidence.
Recommended Article: What are the types of a solar inverter?