Is my property suitable for solar photovoltaic panels?
Solar photovoltaic panels are suitable for almost any properties in the UK. A good roof for solar panels would be large, south facing and have a pitch of around 30-45°. With an expertly designed system using the appropriate solar panels and inverter combination, a less than perfect roof can still achieve a superb output.
As an industry leader we are able to design a solar PV system that will give optimum performance.
How does the roof direction affect the installation?
The direction in which your roof faces does have an impact on the amount of irradiation that that the panels receive throughout the day. South facing is a perfect orientation for a system of either solar PV or solar thermal, but installations of systems are viable up to an East-West split. We do not install on a north facing roof due to the lack of irradiance.
An East or West facing roof achieve only 15% less output compared to due south systems.
How does the angle of the roof affect the solar installation?
Installing panels on an angle between 30° and 45° is best, but they can work well at any angle providing the solar system is designed correctly. On flat roofs, we mount panels to an A frame system to provide an efficient mounting angle.
Systems can also be installed on the ground using many different mechanisms from A frames to pile driven platforms.
How much space is required for a solar installation?
Although Solar PV and Thermal panels have been around for decades they are considered a new technology and popularity has grown over the last 10 years because the efficiency of the panels is always improving, so the amount of space required is continuously decreasing. The average space required for a 4kw array is approximately 28m2 of roof area.
Am I eligible for solar panels feed in tariff?
Since April 1st 2012, the UK government made an amendment to the FITs eligibility with a requirement to have an energy efficient home, your home / property must have an EPC rating of D or above. An Energy Performance Certificate measure the efficiency of your home. There are a number of ways you can carry out with energy efficient and renewable products to improve your score. Providing you reach and EPC rating of D or above you will be eligible for the full feed in tariff.
It’s estimated that about 50% of the current UK houses already meet the requirement of grade D, a few older houses may need improvement to pass. A simple measure like loft insulation can improve your efficiency rating quite quickly and replacing an aging boiler is a way of jumping a rating or two.
Does where I live affect the panel’s performance?
The further south you live, the more solar irradiation you’ll receive. Solar panels are definitely more popular in the southern parts of the UK, but the performance differences across the length of the UK still making them an attractive proposition regardless of location.