Types of Solar Panel and components we use

How important is shading?

Shading is important. Because the cells in each panel are connected in series, shading even a single cell can affect the whole system. This is one of the main reasons why you should make sure you use an installer with real, proven experience. At Engensa we are really proud to have installed the UK's first micro-converter installation. This is a new technology that allows each panel to operate individually, reducing the effects of shading. It's pretty high-tech but we'd be delighted to explain how it works and see if it might be suitable for your home.

How do I know how much energy my system will make?

Using state-of-the-art simulation software, we produce a detailed model of the output of the solar energy system. This simulation predicts the average amount of energy produced by the system by month and by year, which enables us to optimize the design to maximise performance. The software, which is based on data provided by the government, is also used to estimate the amount of revenue your PV system will generate over the whole year.

What happens if there is a power cut?

All our systems will turn off automatically during a power cut. This is a safeguard to stop the system exporting current to the grid when someone might be working on repairing it.

What if a tile on my roof is broken and needs repairing?

If you need to do some repair work on your roof after the panels have been installed and commissioned and need to remove them to do the work, you will need to contact an accredited MCS installer to remove them. We would, of course, be happy to help.

How do I know which is the best panel to use?

Depending on the size of your roof our design consultants will be able to advise you on the best type of panel to use. For example, if you have a slightly smaller roof and want to generate as much electricity as you can, we would advise installing panels with a higher wattage capacity. Every roof is different so we will design your system to best fit your home and your budget.

What is the SolarEdge technology?

The SolarEdge technology is a type of inverter called a micro-converter which allows millions of otherwise unsuitable roofs to be used for solar PV by eliminating many of the problems associated with shading. If your roof is partly shaded or if you have two roofs which have different orientations, this could be a solution to helping you generate the maximum amount of electricity from your system.

How can I monitor what the panels are generating?

We have developed a home monitoring package so that you are able to monitor how much energy you are using as well as how much electricity is being generated. The monitoring system is called Solar Health and is internet based so you can log on 24 hours a day.

Will I need to replace any of the parts in the system over 25 years?

All parts in the system are designed to last 25 years. Engensa offers a workmanship guarantee of five years.

Do the panels need cleaning?

All solar panels are self cleaning so there is no need for you to do this. However it is important to make sure they are not covered by any debris such as leaves and if so, you’ll need to remove them so that they can continue working efficiently.

Will the panels work in snow?

If the panels are covered in snow they will not be able to generate any electricity so it is important to clear them. Use a soft broom to do this and you should then see the panels start to produce energy again. In Winter, the energy we get from the sun is much less than in summer but the solar system will still continue to work. See Dr Toby’s blog for a graph of what you might expect your system to generate.

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