The most efficient solar panels in the world are capable of 40 to 50% efficiency. However these are beyond the budget of homeowners looking to achieve a healthy return on investment.

To achieve the best return on your investment you should opt for a solar panel that offers a balance between cost and efficiency.

To compare efficiencies and prices of pv panels offered by installers operating in your area, fill in the form at the top of the page.

How efficient are solar panels?

Most domestic solar panels are around 10 to 20% efficient. More efficient solar panels are available, although these tend to be beyond the requirement and budget of most residential installs.

However, when deciding on what solar panels will be best for your circumstances, you will want to look at which solar panel will give the best return on investment rather than just simply the most efficient solar panel.

Higher efficiency solar panels tend to cost more, so a less efficient but cheaper solar panel is likely to deliver a higher return on your investment. Less efficient solar panels will need a larger space on your roof to produce the same amount of electricity as a more efficient panel. You might still want to consider a higher efficiency panel if you have a particularly small roof or your roof only has a small area out of permanent shading.

You can enter your postcode in the form at the top of this page to compare prices from installers operating in your area. These installers will be able to advise you further on the best solution for your particular requirements.

Most Efficient Solar Panels

As we explained in the section above, you shouldn’t just choose the most powerful solar panel. However, to give you an idea of the most efficient solar panels offered by leading brands, we have compiled the table below:

The table below shows the efficiency of popular, but less efficient solar panels which, provided you have suitable roof space, often deliver a higher return on investment than the most efficient solar panels on the market:

Source: http://www.theecoexperts.co.uk/which-solar-panels-are-most-efficient