Solar Thermal
and Photovoltaic
Harnessing the sun’s energy for your household needs is a smart, environmentally friendly and convenient choice. With solar thermal and photovoltaic systems, you can reduce energy consumption, increase living comfort and contribute to environmental protection.
Solar Thermal
The main difference between a forced circulation solar thermal system and a natural circulation system lies in how the heat transfer fluid circulates within the system.
Operation:
The system consists of a solar panel, a solar station with a circulation pump, a storage tank for domestic hot water or technical water, an expansion vessel, and a safety group. The solar station detects the temperature inside the solar panels and, if it is more than 8°C higher than the temperature of the storage tank, activates the circulation pump, allowing the hot heat transfer fluid to reach the storage tank and transfer heat through the internal heat exchanger. Circulation is maintained until the set temperature of the boiler is reached or the temperature difference between the panel and the storage tank decreases.
Features:
-
Greater efficiency in exploiting solar radiation.
-
Possibility of integrating the system with other systems, such as a gas boiler or a
heat pump.
-
Greater flexibility in choosing the positioning of the collectors and the tank.
Operation:
The heat transfer fluid circulates by natural convection, exploiting the difference in density between the hot fluid (lighter) and the cold fluid (heavier). The storage tank must be positioned above the collectors so that the hot fluid rises naturally upwards. Alternatively, systems that exploit direct radiation without the use of heat transfer fluids can be used, through a highly selective glass that heats the storage tank integrated into the structure. From an aesthetic point of view, they are much more compact.
Features:
-
Simplicity of installation and maintenance, as there are no electrical components.
-
Silent operation.
-
Ideal for the summer period.
-
Possibility of integration with an electric resistance or antifreeze.
Photovoltaic
A photovoltaic system is a system that harnesses solar energy to produce clean and sustainable electricity. The main components of a photovoltaic system are:
They are the heart of the system and are made up of photovoltaic cells, generally made of monocrystalline or polycrystalline silicon.
A fundamental component that converts the direct current (DC) produced by the photovoltaic panels into alternating current (AC).
Contains the control and protection devices of the system.
Supports the photovoltaic panels and orients them towards the sun to maximize energy production.
Connects all the components of the system to each other.
- Batteries
Allow you to store the energy produced by the photovoltaic panels and use it when the sun is not shining.
- Monitoring system
Allows you to monitor the energy production of the system in real time and identify any problems.
- Power optimizers
Improve the performance of the system by increasing energy production in low-light conditions.
Types of Photovoltaic Systems
These are the most common and are connected to the national electricity grid. The excess energy produced by the photovoltaic panels is fed into the grid and offset against the energy taken from the grid when necessary.
These are not connected to the national electricity grid and are used in isolated areas where the electricity grid is not available. The energy produced by the photovoltaic panels is stored in batteries to be used when needed.
Photovoltaic systems can be single-phase or three-phase
• Suitable for small domestic systems.
• Most domestic homes have a single-phase electrical system.
• Suitable for larger systems or with high power requirements.
• Requires a three-phase electrical system.
A
ARISTON
C
CORDIVARI
I
IMMERGAS
S
SCHEENPLUS
SUNERG
V
VAILLANT
Plumbing
Plumbing and heating systems encompass all components used in a hydronic system, such as fittings, valves, pipes,insulation, fastening systems, and various equipment.
