Royal Mail employee offers

Solar panels are suitable for most homes, however the size of your roof, the direction it faces, and the pitch angle will ultimately determine whether a solar panel system is the right option for you.

• Size – The more panels you have on your roof the more energy you will be able to create. An average system will typically take up around 15-20m2 of roof area.
• Direction - Ideally your roof should be south facing and not have any trees or buildings shading it. You can still install panels on east or west facing roofs however they will produce less energy compared to a south facing roof.
• Pitch - You'll need a diagonal roof as we cannot offer solar panels for flat roofs. The best pitch angle is between 30-40º (this is the typical angle of most UK rooftops).

• solar photovoltaic (PV) panels are made up of many layers of semi-conducting materials (ours are made of silicon)
• the panels absorb the sun's rays and create a flow of electricity
• the electricity is then passed through an inverter, which changes the direct current (DC) to alternating current (AC)

this electricity can then be used to power your household appliances, charge your battery, or be exported to the grid

We use the most aesthetically pleasing panels in the market. They are black panels that are roughly 1.8m by 1.1m.

Solar panels require daylight to work, not direct sunlight. This means even during cloudy days, your panels will still work.

It depends how much of your roof is shaded. Panels are installed in “strings” – they are all connected to each other. If there is shading, it can affect the performance of the other panels, not just the one that is shaded. If there is shading, we can install the panels in areas that aren't shaded and install micro-inverters - these are individual inverters on each panel, connecting to a central unit.

• 25 year warranty on solar panels
• 10 year warranty on batteries
• 10 year warranty on inverters
• Lifetime support guarantee

Start your solar journey today and receive a call back for a remote survey within three working days. Once the remote survey is completed, you can have your solar panel system fitted within as little as four weeks.

For most homes, no.  However, there are a few exceptions. If you live in a listed building, conservation area or national park, you may need to check with your local planning office.

There’s no annual maintenance or service required. You may want to give your panels an occasional rinse with a hose to get rid of any dirt or dust. You may also need to keep an eye out on nearby trees to make sure they don’t shade your panels.

Solar panels create direct current (DC) energy, but we need alternating current (AC) energy for our household appliances. An inverter is used to change the energy from DC to AC. The inverter is usually installed in the loft, and is wall mounted.

There are many factors that contribute to whether you’ll be able to save money on your energy bills, such as:

• your electricity tariff - if you join our Heat Pump Tracker tariff, you could save £164.
• the type of heat pump you install
• the design of your central heating system
• your location and its average air or ground temperatures throughout the year

Your energy bill savings will also depend on the system you're replacing. According to Energy Saving Trust, replacing an old (G-rated) gas boiler with an air-source heat pump could currently save you up to £290⁽²⁾.

Heat pumps work more efficiently when it’s warmer which means they’ll have to work a bit harder when it’s cold. However, the heat pumps we can offer still work effectively at -25°C.

The heat pump that's installed is bespoke to your home. After speaking with a specialist and designing the right heat pump for you, it will take around 3-5 days to install. To read more about air source heat pump installations, visit our installation guide.

In some cases, we’ll recommend installing larger radiators. If you have old or single panel radiators, you may need to replace your radiators for double or triple panel radiators to increase the surface area. Radiator upgrades are important as they’ll improve the efficiency of your heat pump and reduce running costs.

You can expect the noise to be a similar volume to a fridge. As it gets colder outside, this noise will increase while it’s operating. However, you shouldn’t be able to hear the sound indoors.

All of our heat pumps come with a manufacturer's warranty of up to 7 years.