Specialist in solar panels, regarding the photovoltaic system

Specialist in solar panels, regarding the photovoltaic system

Anyone who is about to invest in a photovoltaic system to be used for 25 – 30 years will certainly have questions (sometimes technical) related to its component parts and how they fit together. All relevant information about the photovoltaic system is provided by Tudor Adăscăliței, sales director of Restart Energy, solar panel specialist (Restart Solar).

In most cases, we are content to profit from the green energy produced in our regime, and there is no need to discover, in detail, the way in which sunlight ends up powering the microwave oven, the washing machine or the machinery in a production hall. To have correct and detailed information on the installation, maintenance and operation of solar panels, Restart Energy specialists give you the right advice on how to get the most from the energy generated, making use of their professional expertise and experience.

What does a complete photovoltaic system consist of?

From the article below you will discover what the elements of a complete photovoltaic system are and what the role of each of them is. First of all, it is important to know the fundamental parts of a photovoltaic energy generation system:

• cell AND module SOLAR to capture solar energy
• AND inverter to convert direct current (DC) to alternating current (AC)
• A set of drums AND charge regulator for autonomous systems (optional)
• In addition to the modules and the inverter, numerous components can be added to the system. All of these have a name System balance (BoS). The most common components are mounting structures, solar tracking systems, electricity meters, cables, power optimizers, transformers, junction boxes, switches, etc.

Solar panel specialist: «The modules have a generated power of 80% even after 25 years of use»

Photovoltaic cell represents the basic unit of the photovoltaic system. The cells are connected together to form larger groups called photovoltaic modules, says the Restart Energy specialist. Thin layers of EVA (ethyl vinyl acetate) or PVB (polyvinyl butyric acid) are used for cell support and weather protection.

modules they are normally enclosed between a transparent cover (usually glass) and a back layer for protection from the elements (usually made of a thin polymer or glass). They can be framed for greater durability and mechanical strength.

The power generated by photovoltaic modules varies from a few watts (between 20 and 60 Wp) to 300, even 350 Wp, depending on the size and technology of the panel. Low-power ones are usually used in stand-alone applications, where energy needs are generally low.

The modules can be sized for quick installation in any location. They are robust, reliable and weatherproof. Tudor Adăscăliței, specialist at Restart Solar, says that «module manufacturers usually guarantee 80% generated power even after 25 years of use.»

Our specialist explains how it works the inverters. They convert the direct current generated by the photovoltaic module into alternating current. This makes the power produced compatible with the electricity distribution network and with most electrical applications. The inverter is essential for grid-connected photovoltaic systems. It is available in wide ranges, with powers ranging from a few hundred watts (used in stand-alone systems), to the order of kilowatts (the most common), up to 2,000 kW (central inverters) for large systems.

Useful information on batteries and charge controllers

Stand-alone photovoltaic systems are designed to store energy in batteries for later use. The two widely used standards are lead-acid or lithium-ion batteries. New types of drums High-performance devices are available, designed specifically for solar applications, with a lifespan of up to 15 years. The life of a battery depends on the management of its charging cycle.

drums they are connected to the photovoltaic system via charge regulators. The charge regulator prevents overcharging and discharging of the battery. It can also provide information on the state of the system and allow the accounting and evaluation of costs in relation to the energy consumed.

Now you can say that you are really informed, especially on the technical side, about the composition of a photovoltaic system and how it works after installation.

Restart Energy helps you find quick and concrete answers to your questions about the solar panels you have purchased or intend to invest in.