When installed correctly and with the right conditions, Solar PV has a range of potential benefits.
Our surveyor will visit your property to carry out a free survey, with no pressure to buy – we are proud of our no pressure sales approach. We will answer any questions you may have, and check that your property is suitable, looking for the following:
Orientation
A south facing roof is optimal. However, if your house faces east or west, you would still gain sufficient savings from your installation. Your ZLC Energy surveyor will talk this through with you.
Pitch
An angle of between 30 – 45 degrees is optimal for Solar PV, depending on your location in the UK. Our engineers can advise you on the best solution for your home. However, we can mount panels at any angle from 15º to 50º. Outside that range, the panels would start to lose performance. If your home has a flat roof, ZLC Energy can also install an angled frame to your existing roof which holds the solar panels at the optimum angle and direction for maximum energy production. This type of installation may involve gaining planning permission, and ensuring the roof structure is capable of holding the weight of the panels – ZLC Energy are experienced in completing all of this on your behalf.
Available roof space
At ZLC Energy we understand that every house is different – we can discuss your requirements and our team can design the most efficient system for the space available. A typical 4KW system would be 8m long x 3.5m deep.
Condition of your roof
Most roofs are structurally capable of holding a solar system, however, as part of your survey, we will ensure that everything is just as it should be. We are experienced in working on a variety of roofing materials, including local slate tiles.
The current energy rating of your property
To qualify for the Feed in Tariff, you will need to produce an EPC – Energy Performance Certificate for your property, demonstrating that your home has an energy efficiency rating band D or higher. Most homes will be a band D or higher, however, we can advise you on the best approach if your home is older and less efficient. We can carry out an EPC if you need one.
Your location
Solar Radiation levels vary throughout the UK, with South West locations seeing around 10-15% more than the national average. We calculate to the MCS design guide and simulate output using PVsyst so you can be sure our figures are trusted.
Do you have space inside your home?
The bulkiest piece of equipment is the inverter. It needs some clear space around it for cool air to circulate, so we recommend a space of about 1.5 metres high by 1 metre wide. Our surveyor will check this with you when we visit.
How is your home connected to the grid?
Most homes have a single-phase connection. This will support a system of up to 4kWp, which is usually the maximum size for a domestic property. If you have plenty of space and want a bigger system we are experienced in seeking permission from your distribution network operator (DNO) and can guide you through the process. We can also offer a unique energy management system, using the IMP from Wattstor – a smart switch system that will manage your energy storage to gain maximum efficiency.
