Curious about how much you can save on electricity bills with solar as a Homeowner in Wales?

Solar for home

Among all the benefits of solar panels, the most important thing is that solar energy is a truly renewable energy source. It can be harnessed in all areas of the world and is available every day. We  cannot run out of solar energy, unlike some of the other sources of energy. Solar energy will be accessible as long as we have the sun, therefore sunlight will be available to us for at least 5 billion years when according to scientists the sun is going to die.

Reducing Electricity Bills

Since you will be meeting some of your energy needs with the electricity your solar system has generated, your energy bills will drop.
How much you save on your bill will be dependent on the size of the solar system and your electricity or heat usage.
For example, if you are a business using commercial solar panels this switch can have huge benefits because the large system size can cover large chunks of your energy bills.
Moreover, not only will you be saving on the electricity bill, but there is also a possibility to receive payments for the surplus energy that you export back to the grid through the:-
Smart Export Guarantee (SEG).
If you generate more electricity than you use (considering that your solar panel system is connected to the grid).

Are Solar Panels Effective in Wales?

Wales benefits from a relatively high number of sunshine hours and therefore solar panels can work effectively.
The solar system’s efficiency may vary depending on which direction the panels face and the time of the year. South facing panels are more efficient than north facing ones throughout the year.
For solar panels to work effectively, several factors need to be considered, some of the factors include:- your average energy consumption, the size of the solar system, type of solar panels and quality installation.

How Much do Solar Panels in Wales Cost?

There are many factors that are taken into account which affect the cost. These include the size of the solar system, the installation cost and whether you choose to install a battery storage system. Other costs are dependent on the choice of supplier and type of panels.

Solar panel costs depend on several factors that include the size and type of solar panels. The cost ranges from £5,000 to £13,000 for solar panel system sizes ranging from 3 kW to 12 kW.

  • 3.2 kW (9 Panels) £5000 - £6000
  • 4.3 kW (12 Panels) £6000 - £8000
  • 5.0 kW (14 Panels) £7000 - £9000
  • 6.4 kW (18 Panels) £8000 - £10,000
Are there Grants for Solar Energy in Wales?

Like any other nation in the UK, the Feed-in Tariff for renewable energy PV Solar was also available to citizens in Wales, the solar feed in tariff came to an end on the 31st March 2019

There are no specific grants for solar panels in Wales, but you can benefit from the Smart Export Guarantee (SEG) SEG is a type of solar funding where licensed electricity suppliers are required by the government to offer an export tariff for electricity exported to the National grid.

How Many Solar Panels Do I Need for My Home in Wales?

The number of panels you need is mostly dependent on the amount of energy you consume, your roof size and size of the individual panels. If, for example, you have a total energy consumption requirement of 3,000 kWh and want to rely for the large part on solar panels, you can install 30 square meters of solar panels that will generate a yearly power output of 2/3000 kWh.

Planning requirements in Wales
  • Panels cannot be installed above the highest part of the roof
  • Panels should not project more than 200mm from the roof slope or wall surface
  • Cannot install panels on a building within the ground of a listed building
What Type of Solar Panels Should I Install?

The choice of solar panel type can be based on efficiency, cost, and available space.
Some types of solar panel are more efficient that others, and this would affect the number of panels you need to install. For example, you need less space to install monocrystalline panels compared to thin film and polycrystalline solar panels. There are different types of solar panels that can be installed on your roof, but the most commonly installed panels are monocrystalline or polycrystalline solar panels.

Available solar panels

Monocrystalline solar panels have the highest efficiency rate of 15 – 20%. This means that they can convert between 15% and 20% of sun energy into usable energy. This type of solar panel is also space efficient because they generate more energy per area compared to other types. One square metre of a monocrystalline panel will generate 10W more than the same size of a polycrystalline solar panel.On the other hand, monocrystalline panels are the most expensive solar panel type due to their high efficiency and quality of silicon used.

Features Included

Efficiency rate of 15-20%

The more expensive solar panel type

They require the least space for installation

Less affected by weather compared to other options


Due to their high temperature tolerance, polycrystalline solar panels generate more electricity over the year compared to monocrystalline panels.
Polycrystalline panels are a cheaper alternative to its monocrystalline variant. Although both types are made from silicon, in polycrystalline, many fragments of silicon are melted to form the wafers for the panel.
While in monocrystalline silicon is formed into bars and cut into wafers. A downside of polycrystalline panels is that they are less efficient because their silicon material is less pure. You can expect an average efficiency rate between 13-17%

Features Included

Efficiency rate of 13-17%

Cheaper than monocrystalline panels

More sensitive to high temperatures compared to monocrystalline

Do I Need a Solar Battery Storage System?

If you would like to avoid electricity bills and reduce reliance on grid power, then installing your solar panels with a solar battery storage is the most appropriate option. However, if your initial goal is to just reduce your electricity energy bills then installing solar battery storage at a later date is also a good decision based upon known factual home electricity consumption and surplus solar exported results

A solar battery storage has several benefits
  • You can store the unused energy generated by your solar panels
  • You will be less reliant on the grid electricity
  • You will be more environmentally friendly
  • You have reduced or possibly no electricity bills

Households that install solar panels with a battery storage, use about 80/90% of the energy they generate while households without a battery storage use circa 50% of energy they generate.

The amount of money you can  save  by installing your solar panels with a solar battery storage depends on the number of solar panels installed, the  size of solar battery  installation, and how much the batteries can discharge.

As solar professionals we can advise you on different options and costs.

Get in Touch Book Your Free Survey