Photovoltaic panel retirement period

How long do solar panels last in the UK?

Domestic solar panel systems in the UK typically have payback periods ranging from 5 to 7 years, though, as we've already covered, this can be shorter or longer depending on multiple factors. Commercial solar installations can see payback periods as short as 1 to 3 years, sometimes even less for larger systems.

What is a solar panel payback period?

A solar panel payback period is the length of time it takes for the savings on electricity bills to equal the initial investment made in a solar energy system. Before we delve into the payback periods of solar panels, let's discuss how much you could expect to pay for a solar panel system in the UK.

How long does it take a solar panel to pay back?

Research has shown that the carbon payback period for solar panels is on average 1-4 years. Even in areas where the sun’s radiation is received at less than 550kWh per m2 such as the northern part of the UK, a typical solar panel will only take around 6 years to pay back its energy cost.

How long does it take to recoup a photovoltaic investment?

In several regions, the average figure is 8 years. In some other regions it takes less time. Several factors should be taken into consideration when predicting how long it will take to recoup your investment with photovoltaic installations, such as: What you would have paid for electricity without solar energy.

How long does it take to recoup solar panels?

If we proceed to calculate the solar panel payback time based on these figures, we come to the conclusion it would take 9 years to recoup the costs. Now, let’s consider a system size of 5.2 kWp with battery included, also in Glasgow:

How long do PV panels last?

The model assumes that at 40 years at the latest PV panels are dismantled for refurbishment and modernisation. The durability of PV panels is thus assumed to be in line with average building and construction product experiences such as façade elements or roof tiles. These also traditionally have a lifetime of 30-40 years.