Find a Solar Panel Installer you can trust in Kirkby-in-furness.

Are you currently weighting the possibilities of adding a solar system to your commercial building? With lots of commercial property owners in the UK using solar now, many more are gradually coming to terms with the numerous benefits they stand to derive by getting one. Therefore, if you’re thinking about adding the system to your commercial building but do not know where to start, you’ve come to the right place.

In this post, our aim is to help you calculate the number of solar panels you’ll need to power your entire commercial building. Starting from the panels, you can begin by taking into account everything that makes use of power in your commercial building to get a good idea of how many you’ll need.

• To get started, you’ll have to determine the number of watts used by your commercial building. To get this, you simply have to go through your utility bill for kilowatt-hours (kWh). This varies amongst buildings and being able to identify your daily average energy usage will assist you in getting your solar panel needs.
• Once done, you’ll also have to determine the peak sunlight hours - having in mind that the solar panels only work when under direct sunlight. Once determined, you can then multiply the figure in hours by your home’s hourly energy usage and divide by your selected solar panel’s wattage.

In general, a medium-sized commercial building making use of an average amount of electricity will require about 70 average quality solar panels so as to cover its entire electricity needs. These are, however, just averages, so yours could be more or less so getting the idea is vital here.

To have your solar panels working at full strength at all times is crucial as this can go a long way to help you reduce your energy bill. In order to achieve this, you simply can’t afford to ignore having them regularly cleaned and free from all sorts of dirt, dust, debris, pollen, bird droppings and the likes. Now it’s quite reasonable to think rain or wind should be able to get the job done, but unfortunately this is not so. What solar panels need is a proper clean which you can decide to do by yourself or call in a qualified professional – the latter which is strongly recommended.

Cleaning of solar panels has to do with working at heights which can be very dangerous especially if you don’t have enough confidence to pull it off. And even if you have zero phobia for heights, solar panel cleaning requires experience as well as some specialized skills and tools possessed by the professionals. However, the question here is, how often should solar panels be cleaned to keep them operating at optimal efficiency?

Well, according to the manufacturers, solar panels should be cleaned twice a year. However, if this is something that you feel is not achievable by you, then you should at least give then an annual clean. The best or most advisable time to do this during the year is at the end of the summer months. This will ensure that you have a fully functioning solar array which is ready and prepared to withstand whatever the cold period throws at you. At the end of the day, you’d have them looking spotless clean while also working at full strength and reducing your energy bills.

If your solar panels are mounted on your roof and you require a ladder to reach them we would always recommend you get a professional to do the work for your own safety.

In a similar way to other major home improvement projects, some specific requirements must be met to allow for the installation of solar panels. The main reason why these standards and regulations were established is to minimize the risk of the solar system becoming an issue or potential hazard in the unforeseeable future. So if you’re thinking about buying and fitting new solar panels, you’ll probably want to know whether or not you’ll require to submit a planning permission application for approval before you can proceed.

Generally, solar panels are covered under what’s called “Permitted Development” which gives you the freedom to install your solar panels without having to apply for a planning permission. However, there are some exceptions to this rule. These exceptions include if your house is a listed building or if your house is located within a conservation area. In these exceptional cases, it’s possible that you’ll need to apply for a planning permission, but this will largely depend on the discretion of your Local Planning Authority. What’s more? Solar panels are usually subjected to normal building regulations which includes examining the roof to make sure that it can support the additional weight. You can call in a MCS certified installer to carry out this check for you.

In order to install your solar PV on your roof, you must follow these guidelines:

✓ Your solar panels shouldn’t go beyond the highest point of the roof (excluding chimneys).

✓ The solar panels shouldn’t project beyond 200mm off the roof’s edge.

✓ The solar panels should be removed once they’re no longer used to produce electricity

✓ The solar panels should be installed such that the area and building’s appearance change is minimized.

No – solar thermal doesn’t generate electricity. Unlike solar PV, solar thermal panels harness the sun’s energy and convert it into heat which is then transferred into your home.

You can have evacuated tube solar thermal panels or flat plate collectors; evacuated tubes are thought to be more efficient that flat plate collectors. They both work by using the sun’s rays to heat a transfer fluid, usually made from water and a type of antifreeze, which is pumped to a heat exchanger inside a water tank in your home. The heat from the exchanger heats the water inside your tank, then when the liquid releases its heat it’s transferred back to the collectors to start the whole process again.

You’ll need to use your solar thermal panel system with a boiler, collector or immersion heater. This is so that the water can be stored and used for your hot water and heating, and also because in the UK, people generally need to rely on another source of heating in the winter. There are fewer sunlight hours in the winter months, so it’s not often possible for solar thermal panels to generate enough heat from the sun to get your water up to temperature.

Whatever the time of year it is, you might want to heat the water up further than your solar panels can manage. That’s why you’ll still need a form of traditional hot water heating, but you should see savings on your energy bills. If you’re currently using natural gas, you can expect savings of around £60 per year on your fuel bills, while if you’re using LPG it could be as high as £100 pr year

How much energy a solar panel produces depends on its manufacturer and exposure to the sun. A good-quality solar panel typically has a power output of about 300 watts per hour, but this can vary from about 240 to 360 watts. How much energy your solar panel will produce per day depends on how many hours of unshaded daylight it’s exposed to.

Here’s an idea of how much energy you could expect a large commercial solar panel installation to produce in a year.

Solar panel system size, No. of solar panels, Annual electricity output

11kW, 44, 9,350kW

20kW, 80, 17,000kW

30kW, 120, 25,500kW

40kW, 160, 34,000kW

50kW, 200, 42,500kW