Solar Panels Buying Guide

It takes little efforts to determine the best solar panel for home or commercial installations. Apart from the price tag, it is important to consider other crucial factors. The solar panel you choose should be highly durable and also provide a good return on investment if you are using it for commercial purposes. In this guide, we will help you determine the best solar panels based on their types and features.

Tiers of solar panel quality
Choosing the best system involves taking into consideration the materials used and how it is manufactured. There are three tiers of solar panel quality. Tier 1 is made of 2& of solar manufacturers. They have been approved for being vertically integrated, and have advanced robotic processes. The second tier is comprised of small to medium scale manufacturers. They use partial robotics and have little investment in research and development. Tire 3 is composed of only 90% of new solar PV.

Tolerance
It is the range in which the solar panel will either meet or exceed its rated power. For example, the solar module you purchase might have 190 Watts in reality due to issues with quality control while the “nameplate” indicates 200 watts.

Potential-induced degradation (PID) resistance
Specific climate conditions trigger the stray currents causing a resistance to the potential-induced degradation. It can result in a substantial power loss and a good solar panel is one that displays little or no PID.

Size and Watts capacity
The cost will be affected directly by the capacity of the solar panel. The output of each module is related to the number of watts. For example, the electricity of 200 watts per hour will be generated by a 200-watt panel.

Durability, Warranty or Longevity
There are several reasons why the longevity of a solar panel warranty is essential. It indicates the level of confidence the manufacturer has towards their products. Most of the reputable brands would have an average warranty of 25 years.

Embodied energy
The embodied energy of the solar panel is another essential aspect to consider. It indicates the intensiveness of energy used in the production of the panel and how it can produce more energy. It should be considered as an environmental cost.

Light-induced Degradation (LID) resistance
This is a process that occurs in the beginning months after the installation of solar panels. Although it stabilizes after the period, the amount of power produced by the module can be greatly minimized. The best solar panel will have little or no LID.

Conversion efficiency
This is how sunlight can be converted efficiently into electrical energy. It determines how much power is generated by the system. A solar panel provide the best value for money is one that has a higher conversion efficiency.

Temperature coefficient
This rating determines the impact of heat on the operation of a solar panel after installation. A good panel should have a lower percentage per degree Celsius. However, you will expect to pay a little more for a module with low-temperature co-efficiency.

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