Degradação FV

~0,5%/ano.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

%
5,0

About this calculator

The annual degradation calculator for photovoltaic systems is an essential tool to understand the efficiency loss of solar panels over time. Degradation occurs due to factors such as sun exposure, temperature, humidity, and other environmental factors. Generally, the annual degradation is around 0.5%, which means that the efficiency of the solar panel decreases by 0.5% each year.

The annual degradation is calculated based on the linear degradation formula, which considers the efficiency loss of the solar panel over time. This allows photovoltaic system owners to estimate the efficiency loss over the years and plan for maintenance and replacement of solar panels. The calculator uses this formula to provide an accurate estimate of annual degradation.

It is essential to consider annual degradation when installing a photovoltaic system, as it can affect energy generation and investment profitability. Additionally, degradation can vary depending on the type of solar panel and environmental conditions. In cases of high degradation, it may be necessary to replace solar panels earlier to maintain system efficiency.

When using the annual degradation calculator, it is crucial to keep in mind that degradation can be influenced by several factors, including solar panel quality, installation, and maintenance. Therefore, it is essential to consult the manufacturer's specifications and perform regular maintenance to minimize degradation and ensure the efficiency of the photovoltaic system.

Frequently asked questions

What is annual degradation of photovoltaic systems?

Annual degradation is the efficiency loss of solar panels over time, typically around 0.5% per year.

What factors influence annual degradation?

Annual degradation is influenced by factors such as sun exposure, temperature, humidity, and other environmental factors.

How can I minimize annual degradation?

To minimize annual degradation, it is essential to perform regular maintenance, consult the manufacturer's specifications, and ensure proper installation of solar panels.

Does annual degradation affect investment profitability?

Yes, annual degradation can affect energy generation and investment profitability in photovoltaic systems.

When should I replace solar panels due to degradation?

Replacement of solar panels depends on annual degradation and specific system conditions. It is recommended to consult a specialist to assess the need for replacement.

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