FAQ

Electricity derived from sunlight is called solar energy. Photovoltaic systems (or PV) convert electromagnetic radiation into electrical energy. This energy, in the form of direct current voltage, is then converted into usable alternating current through an inverter. The benefits of this technology are remarkable:

• Global and accessible availability of solar energy.
• The inexhaustible nature of solar energy as a source.
• Solar energy is renewable, passive, noise-free, and emission-free.
• The use of solar energy contributes to energy independence.

The essential component of a photovoltaic system is the solar cells, which are integrated into solar modules to form larger units and are protected from contamination and damage by special glass. These solar modules are mounted on the roof using an appropriate fixing system and produce direct current, which is then converted into usable alternating current by an inverter.

Unused solar energy can be directed either to the general electric grid or to a storage system, such as batteries. This energy can be later used at a different time, such as during the night. Control systems constantly monitor the status of the photovoltaic system, allowing for the reading of current electricity production and the available capacity of the storage system at any given moment.

The perspective regarding the lifespan of modern solar modules indicates approximately 30 years, although studies, such as the one conducted by the Fraunhofer Institute for Solar Energy Systems, suggest that this period could exceed 40 years.

By connecting the photovoltaic system to the grid, it’s possible to integrate and supply solar energy into the general electrical grid.

“Grid parity,” also known as “Grid Parity,” is reached when the cost of producing electricity through a photovoltaic system is comparable to the cost of purchasing it from a conventional electricity provider. This condition has long been surpassed, resulting in consistent savings for photovoltaic system owners for many years.

The “merit order effect” aims to ensure that expensive and polluting power plants are first removed from the grid when adequately covered by other cheaper and cleaner energy sources.

In contrast to oil and gas, solar energy is available in unlimited quantities and can be produced locally, without greenhouse gas emissions. Although the manufacturing of photovoltaic system components involves the consumption of materials and energy, these costs are amortized in about two years – from then on, the system simply becomes a source of profit.

The carbon dioxide (CO2) savings made by photovoltaic systems can be calculated by comparing them to electricity production from fossil energy sources. Thus, each kilowatt-peak (kWp) produced by a photovoltaic system prevents emissions of approximately 500 kilograms of CO2 per year.

Photovoltaic modules contain a significant amount of recyclable materials, such as aluminum and glass. Through proper disposal, a substantial portion can be recycled to manufacture new solar modules.