How efficient are modern solar panels?

Efficient solar panel systems are able to generate energy faster than less efficient systems. Today, the average efficiency level for solar panels sits at around 15%-20%. However, there are a number of factors at play here

Does the efficiency of solar panels impact the price?

There are a number of more expensive solar panel systems that have an efficiency level of between 40% and 50%. However, the overall cost of a solar panel system doesn’t guarantee that it will be the most efficient option, which is why it is important to discuss your energy requirements with a trusted provider of solar panels Cheltenham, such as GSM Limited.

What can affect solar panel efficiency?

The type of solar panels you choose will determine their efficiency, with monocrystalline models delivering the highest efficiency levels as they are constructed from the purest grade of silicon. Polycrystalline panels tend to be slightly less efficient, but they also tend to be less expensive.

Thin-film panels and where they rank

Thin-film panels sit in third place currently. However, technology is always improving and we could see greater levels of efficiency with this type of panel in the near future.

What affects real-world panel efficiency

Other factors that will impact the efficiency of your solar panel system include the amount of sunlight your panels are receiving, which is why it is essential that your panels are installed at an angle that will capture the most sunlight.

Government support and what’s next

Many solar panels also struggle to maintain optimal efficiency in high temperatures, with the optimal temperature sitting at around 25 degrees Celsius.

Looking to the future

As part of The Green Deal, there are a number of government-backed grants in the UK available to help homeowners make greener choices. These are worth exploring if you’re ready to invest.

As countries like India and China continue to make the switch to solar energy and competition in the solar energy sector increases, we’re going to see more affordable and more efficient solar panels hitting the market, as well as supporting components including improved solar batteries that will allow households to use energy generated during the day in the evenings.

Summary

Looks at solar panel efficiency, noting today’s panels typically run at 15-20%, with premium systems reaching 40-50%, and thin-film panels currently trailing behind but improving. It also covers factors that affect real-world output, such as sunlight exposure, installation angle and temperature, plus UK government-backed grants and expected efficiency gains as global demand grows.

Questions this article raises

• Which type of solar panel currently offers the best value for typical UK homes?
• How much does panel efficiency drop in very hot weather?
• What government grants are currently available for installing solar panels?