Why invest in solar?
Solar is one of the best energy investments for homeowners. With current energy prices, a typical installation pays for itself in 5-7 years, and panels last 25-35 years. From the moment your system goes live, you start earning on every kilowatt-hour of produced energy — regardless of whether you consume it yourself or feed it back to the grid.
In an era of rising electricity prices that have increased by over 40% in the past three years, solar has become not just an ecological choice but primarily a financially sound decision. Homeowners with PV installations report that their electricity bills have dropped by an average of 75-90%.
How do solar panels work?
Solar panels consist of silicon cells that convert solar energy directly into electricity. The direct current (DC) produced by panels is converted by an inverter into alternating current (AC) that powers your home appliances. Excess energy is fed to the grid or stored in a battery system.
Modern monocrystalline panels achieve 20-22% efficiency, meaning approximately 200-220 W of power per square meter of panel surface under optimal conditions. Technology is advancing rapidly — N-type and heterojunction (HJT) panels offer even higher efficiency and better performance in elevated temperatures.
How much does a solar installation cost?
Cost depends on system size, panel type, roof configuration and location. A typical residential installation (5-10 kWp) ranges from €5,000 to €12,000.
| System size | Approximate cost | Annual production |
|---|---|---|
| 3 kWp | €3,000 - €4,500 | 2,700 - 3,300 kWh |
| 5 kWp | €5,000 - €7,000 | 4,500 - 5,500 kWh |
| 7 kWp | €7,000 - €9,500 | 6,300 - 7,700 kWh |
| 10 kWp | €9,500 - €12,500 | 9,000 - 11,000 kWh |
Price is also influenced by mounting type — pitched roof installation is typically cheaper than flat roof (which requires additional mounting structures). Ground-mounted systems may be more expensive due to foundations and additional cabling.
How much can you save?
Homeowners with solar save an average of 70-90% on electricity bills. With annual consumption of 4000 kWh and a 6 kWp installation, annual savings can reach €800-1,200.
Actual savings depend on several key factors:
Types of solar panels
Several panel technologies are available:
Inverters — the heart of the system
The inverter is a key installation component that converts DC from panels to AC used in your home. Three main types exist:
Installation process
Subsidies and financing
Various support programs are available depending on country and region. FNC Poland helps identify and obtain the most beneficial subsidies for your investment. Popular forms of support include:
Maintenance and lifespan
Solar panels require minimal maintenance. Key recommendations:
Manufacturer warranty on panels is typically 25-35 years for performance (min. 80% power after 25 years) and 10-15 years on the product.
Summary
Solar is a proven investment that lowers bills, increases property value, and provides energy independence. With current energy prices and available subsidies, the timing for investment is exceptionally favorable. Contact us to find out how much you can save.
