Solar Panels: A Guide to Costs and Benefits
Are you considering solar panels for your home? With rising electricity prices and a growing focus on sustainability, more Irish homeowners are turning to solar energy.
This guide explores the costs, savings, technologies, and grants available, helping you understand your options before making the switch.
Why Go Solar?
Lower electricity bills — save up to €1,500 annually.
- Increase home energy efficiency
- Protect against rising energy costs
- Reduce your carbon footprint
Solar Technology Options for Homeowners
There are two main solar technologies:
- Photovoltaic (PV) panels: Convert sunlight into electricity to power your home and devices.
- Thermodynamic panels: Focus solely on heating water, often used as an alternative to immersion heaters.
PV panels are the most common for residential use in Ireland, often paired with battery storage to maximise savings and energy independence.
How Much Electricity Can Solar Panels Generate?
With the right system, solar panels can cover your entire energy needs, even generating surplus energy that can be exported back to the grid for credits. Ireland’s mild climate still allows for solid solar output, cloudy days included.
Battery storage enhances performance by storing unused electricity for night-time use, reducing reliance on the grid.
Solar Panel Installation Costs in Ireland
Here's a general cost breakdown based on current market prices and system setups:
|
Item |
Estimated Range |
Average Cost |
|---|---|---|
| System Size | 8.9 kW | 8.9 kW |
| Total System Price | €13,000 – €16,200 | €14,600 |
| Net Price (after SEAI grant) | €10,400 – €14,400 | €12,400 |
| Estimated Annual Bill Savings | €1,400 – €1,500 | €1,480 |
| Lifetime Savings | Up to €35,500 | ~€21,000 |
| Payback Period | ~9 years | ~8.9 years |
Designing a Solar PV System
When designing your solar system, consider:
- Panel type & capacity (e.g., high-efficiency 445W panels)
- Battery storage for energy independence
- Hot water diverters for heating
- EV chargers for electric vehicles
- Smart monitoring to track savings and performance
Space limitations? Opt for high-capacity bifacial panels that generate more power in less area.
Installation Process and Timeline
Installing a rooftop PV system typically takes 2 to 3 days after consultation and design. The process includes:
- On-site assessment
- System design & quote
- SEAI grant assistance
- Full installation and system demonstration
Return on Investment & Maintenance
- Payback period: 7–10 years depending on usage and system size.
- Savings: Up to €35,000 over 20 years.
- Maintenance: Minimal, though optional cleaning and inspections are offered.
SEAI Solar Grants in Ireland
The Sustainable Energy Authority of Ireland (SEAI) offers grants up to €2,100 for domestic PV installations:
- €900 per kW for the first 2kW
- €300 per additional kW (up to 4kW total)
- Grant cap reduced from €2,400 to €2,100 in January 2024
To claim, homeowners must apply before installation and use an SEAI-registered contractor, like those on OnlineTradesmen.
Get Started Today
Looking to reduce your electricity bill and carbon footprint? Get a FREE quote from trusted, SEAI-registered installers near you. Post a Job Now on OnlineTradesmen