The cost of solar panels has been a topic of interest for many homeowners, businesses, and environmental enthusiasts alike. As the demand for clean energy grows and technology advances, the price dynamics of solar panels have seen significant shifts.
While it is important to recognise that the cost of solar is a one-off, the savings produced continue year in, and year out. And with SOLARWATT’s new 30-year guarantee, many homeowners who see savings of over £1,000 per annum, can translate to over 30k during the panels lifetime. This saving is typically threefold the installation cost, but factors can a this.
So, how much do solar panels truly cost in today’s market? Let’s dive in.
Factors influencing the cost of solar
Before delving into the numbers, it’s important to understand that the cost of solar panels can vary based on several factors:
Size and Capacity
The more energy you aim to produce, the larger the system you’ll need, and consequently, the more you’ll spend.
Type of Solar Panel
There are various types, including monocrystalline, polycrystalline, and thin-film, each with its own price point and efficiency rate.
Installation Costs
Labour, equipment, and additional materials can vary based on location and the specific needs of the installation site.
Additional Components
Inverters, mounting systems, and monitoring systems can add to the cost.
Geographical Location
Depending on where you live, transportation costs, taxes, and potential import duties might affect the overall price.
Average cost of solar panels in Northern Ireland
While prices fluctuate and vary across regions, as of 2025, the average cost for solar panels in NI hovers around £1.25 per watt, before any credits or incentives. For an average-sized residential system of 4kW, this translates to a total cost of £4,999, including installation. Some residential homes will require more than 4kW of power plus the additional components, but this is a great starting point to estimate your costs.
Grants and incentives
Sadly, in Northern Ireland, there are still no government grants or incentives for installing solar panels. However, in early 2023, solar became VAT-free, saving homeowners £700-£1,000 on their installation.
Long-term savings and ROI
While the upfront cost is a significant factor, it’s crucial to consider the return on investment (ROI). Solar panels can:
Reduce Monthly Energy Bills
Depending on the size of your system and energy consumption, you can experience significant savings on your monthly electricity bills. We have seen many average sized family homes become over 80% detached from the grid, meaning only 20% of their power is generated from grid. This therefore has the capability to also reduce your energy bills by 80% – every single year.
Increase Property Value
Homes equipped with solar panel systems often have a higher market value and sell faster than those without.
Provide Energy Independence
By reducing reliance on the grid, homeowners can safeguard themselves against fluctuating energy prices.
Conclusion
So, how much are solar panels? The answer isn’t straightforward, as it’s intertwined with various factors, incentives, and long-term benefits. What’s undeniable, though, is that the declining costs, combined with environmental advantages and long-term savings, make solar panels a worthwhile investment for many.
