Frequently Asked Questions (FAQ) for Photovoltaics
Investing in photovoltaic systems is not only a step toward sustainable energy but also a financially smart choice, thanks to available subsidy programs and financing opportunities offered to professionals, technical companies, and homeowners.
Solar panel programs support the installation of renewable energy sources, reduce energy costs, and promote green development and energy independence.
Photovoltaic systems are today’s most efficient and sustainable solution for generating clean energy. Whether for a residential, commercial, or industrial installation, having the right information is the first step.
We have compiled the most frequently asked questions about solar panels so you can quickly find answers regarding cost, efficiency, maintenance, subsidies, and installation.
What are photovoltaic systems?
Photovoltaic systems (PV systems) are systems that convert solar energy into electricity through solar panels.
They consist of panels, an inverter, mounting structures, and wiring. PV systems can be used for residential, commercial, or industrial applications.
How much does a photovoltaic system cost?
The cost of a photovoltaic system depends on the size, capacity, and type (e.g., residential or commercial).
Indicatively:
Residential PV systems (3–10 kW): from €5,000 to €15,000 (estimate not binding. Contact 218 200 2250 or email [email protected] for a quote).
Commercial / Industrial PV systems (20–500 kW): depending on project scale and requirements.
Payback is usually achieved in 4–7 years, while the system’s lifetime exceeds 25 years.
How much energy does a photovoltaic system produce?
Energy production depends on the system capacity, orientation, and sunlight availability.
For example, a 10 kW system in Greece can produce approximately 14,000–16,000 kWh annually.
What is net metering?
Net Metering allows users to generate the energy they consume, reducing their electricity bills.
The generated energy is recorded and offset against consumption on an annual basis, providing energy independence and cost stability.
Do photovoltaic systems require maintenance?
Solar panels require minimal maintenance. Key actions include:
Cleaning panels 2–3 times per year
Checking the inverter and wiring
This ensures maximum efficiency (up to 98%) and extends the system’s lifespan.
Can I install photovoltaic panels on my roof or flat surface?
Yes. PV systems can be installed on rooftops, flat roofs, canopies, or on the ground with mounting structures.
The choice depends on the space, angle, orientation, and your energy needs.
What are the benefits of photovoltaic systems?
Reduce electricity costs by up to 80%
Achieve investment payback in a few years
Gain energy independence
Increase property or business value
Zero carbon footprint
