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Solar Energy is a site where we explain the most important elements related to solar energy. The intention of its authors is to give general information about everything that surrounds this technology and a review of the related aspects of physics. If you haven't found what you were looking for on the web, here is a list of all the pages we have published.

  • What Is Solar Energy?

    Solar energy is energy that comes from the Sun. It is a renewable energy source that converts solar radiation into electricity or thermal energy.

    • Solar Radiation

      Solar radiation is the amount of energy from the sun that is received on a given surface and time.

      • The Sun

        The Sun is the main source of energy on Earth. Analysis of its internal structure and layers: crown, chromosphere, photosphere and the nucleus.

        • Layers Of The Sun

          The Sun is made up of 3 layers. The photosphere is the layer closest to the nucleus, the chromosphere and the chronoa which is the outermost layer.

      • Solar Irradiation

        Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument.

      • Variations Of Solar Radiation

        Solar fluctuations are variations in the amount of radiation emitted by the Sun, characterizes changes over time, its spectral distribution and the phenomena that accompany these changes.

      • Solar Maximum And Minimum

        The solar maximums and minimums are the times when the Sun has a greater and lesser solar activity respectively within a solar cycle.

    • Advantages And Disadvantages

      The advantages and disadvantages of solar energy. Installation cost, environment and efficiency compared to other energy sources.

      • Advantages Of Solar Energy

        The advantages of solar energy depend on the characteristics of the installation. In comparison with other energy sources, it has numerous characteristics that make it a very favorable source of energy.

      • Disadvantages Of Solar Energy

        Analysis of the disadvantages of solar energy compared to other sources of energy. The characteristics of an installation could imply that a facility would not be viable in certain cases.

    • Panel Solar

      A solar panel (or solar module) is a device for harnessing solar energy. They are used to obtain thermal and photovoltaic solar energy.

      • Hybrid Solar Panel

        A hybrid solar panel allows converting solar energy, part into electrical energy and part into thermal energy.

    • Active Solar Energy

      Active solar energy is characterized by using mechanical or electrical equipment to improve performance.

    • Passive Solar Energy

      Harnessing passive solar energy. Design of buildings to take advantage of solar energy naturally without having to artificially transform it.

      • Bioclimatic Architecture

        Bioclimatic architecture is a discipline of architecture, art and know how to take advantage of most of the conditions of the site and its environment.

      • Passive Solar Energy Transfer

        Systems to be taken into account for the transfer of heat in a passive solar energy installation. There are three types of thermal transmission: by conduction, by convection and by radiation.

    • History Of Solar Energy

      Strategies and inventions created by humanity for the use of solar energy through history.

    • Thermodynamic Solar Energy

      Thermodynamic solar energy is a combination of aerothermal and solar thermal energy.

    • Hybrid Solar System

       Photovoltaic system that includes other sources that generate electricity. These additional energy sources can be wind generators or generators.

  • Photovoltaic Solar Energy

    Photovoltaic solar energy consists of the direct transformation of solar radiation into electrical energy. Grid-connected and isolated photovoltaic applications.

    • Photovoltaic Effect

      The photovoltaic effect is the effect that allows you to transform solar energy into electrical energy by means of photovoltaic cells.

    • Photovoltaic Applications

      Applications in which the use of photovoltaic solar energy in different fields. Applications in isolated systems and connected to the electrical network.

    • Solar Efficiency

      Solar efficiency is the percentage of solar energy that is transformed into electrical energy by the photovoltaic cell. Depending on technology and technical production, it varies between 5% and 30%.

    • Elements Of A Photovoltaic Installation

      Set of elements that make up a photovoltaic solar installation. Differences between an autonomous solar installation and an installation connected to the electricity network.

      • Photovoltaic Panel

        A photovoltaic panel is a set of interconnected photovoltaic cells. Its function is to generate electricity using solar energy.

        • Photovoltaic Cell

          The photovoltaic solar cell is responsible for transforming light into electrical energy. Photovoltaic cells are the basic components of photovoltaic modules.

          • Types Of Photovoltaic Cells

            There are different types of cells depending on the nature and characteristics of the materials used. The most common type is the crystalline silicon cell.

          • Thin-film Solar

            A thin film solar cell is a second generation of solar cells that is made by depositing one or more thin layers.

          • Silicon

            Silicon is a chemical element with excellent semiconductor properties. Silicon is a component that is widely used in photovoltaic panels due to its properties.

            • Polycrystalline Silicon

              Polycrystalline silicon ("polysilicon") is a material that consists of small crystallites of silicon. It occupies an intermediate position between amorphous silicon, in which there is no long-range order, and monocrystalline silicon.

            • Monocrystalline Silicon

              Monocrystalline silicon is the material used to manufacture photovoltaic cells due to its ability to absorb radiation. It consists of silicon in which the crystalline network of all the solid is continuous

        • Types Of Photovoltaic Panels

          There are several types of photovoltaic solar panels. The most common types are monocrystalline photovoltaic panels, polycrystalline solar panels, and thin-film solar panels.

        • Photovoltaic Panel Structure

          A photovoltaic panel is made up of, in addition to photovoltaic cells, a set of elements to give it robustness and functionality.

        • Location, Orientation And Inclination

          Optimization of the inclination, orientation and location of photovoltaic solar panels and solar collectors in a solar installation to maximize the use of renewable energy.

        • Peak Power

          Peak power is the maximum electrical power that a photovoltaic panel can generate under certain conditions.

      • Solar Batteries

        The batteries have the function of accumulating the energy received by the photovoltaic panels. When there is consumption, electricity is provided directly by the battery and not by the panels.

      • Power Inverter

        The current converters transform the direct current generated by the photovoltaic panels into alternating current.

      • Solar Tracker

        A solar tracker is a device that follows the Sun. The main application is to obtain solar energy, either by putting flat or concentration photovoltaic panels.

      • Balance Of System

        The system balance represents the components of a photovoltaic solar system with the exception of photovoltaic modules.

    • Photovoltaic Facilities Connected To The Grid

      Photovoltaic installations connected to the electricity distribution network have the possibility of selling the energy generated to the electricity company. In this way, the use of the generated energy is optimized.

      • Components Of Network Installations

        Basic elements of a photovoltaic solar energy installation connected to the electrical network. Photovoltaic panels, power inverters and meters.

    • Isolated Facilities

      Isolated photovoltaic solar energy installations. This type of installation does not have access to the electricity grid. All the energy generated is for your own consumption.

      • Accumulators Of Electricity

        Electric accumulators are responsible for storing the energy generated by photovoltaic panels to be able to supply when necessary.

      • Charge Regulator

        The charge regulator ensures that both the charging and discharging of the accumulators are carried out correctly.

    • Floating Photovoltaic

      With floating photovoltaics we mean photovoltaic systems arranged not on land but in water.

    • Main Photovoltaic Installations In The World

      Description and characteristics of the main photovoltaic installations in the world. India, China and the United States are the undisputed leaders.

    • Photovoltaic Power Plant

      A photovoltaic power plant is the set of solar installations designed to generate electricity through solar radiation.

  • Solar Thermal Energy

    The solar thermal energy consists of the use of the energy coming from the Sun to transfer it to a medium that carries heat. There are a variety of domestic and industrial applications.

    • Applications

      The multiple applications of solar thermal energy: heating and sanitary hot water, electricity generation, refrigeration systems, industry applications.

      • Domestic Hot Water

        Obtaining sanitary hot water is one of the most widely used applications of solar thermal energy. These systems take advantage of solar radiation to heat hand water or water from the heating circuit.

        • Thermosyphon Solar Systems

          Solar thermosiphon systems have a natural circulation of the working fluid. This circulation is based on convection currents that form in fluids at different temperatures.

        • Forced Circulation

          A forced circulation for solar water heater is an installation in which the water circulates inside the circuit driven by a pump.

      • Generation Of Solar Fuel

        The generation of fuel through solar energy is a technique based on generating chemical reactions using solar radiation.

    • Solar Thermoelectric Energy

      Solar thermoelectric energy allows the generation of electrical energy by means of thermal solar energy. Solar radiation is transformed into heat and later into electricity.

      • High-Temperature Solar Thermal

        The high-temperature solar collectors work at temperatures above 500 ° C. They are used for power generation. Desctiption of the technologies used.

      • Solar Thermal Power Plant

        A solar thermal power plant or solar thermal power plant is an industrial installation in which solar radiation is used to generate electricity.

    • Components Of An Installation

      A solar thermal installation consists of solar collectors, a primary and secondary circuit, heat exchanger, accumulator, pumps, expansion vessel, pipes and a main control panel.

      • Thermal Solar Collectors

        The solar thermal collector is the component of a solar thermal installation, responsible for capturing the heat that comes from solar radiation. Types of solar collectors and characteristics.

        • Flat Plate Collector

          The flat plate solar collector is a type of solar panel that uses solar energy to convert it into heat. It is the solar thermal collector most used for domestic installations.

        • Parabolic Cylinder Solar Collector

          Concentration solar systems are specially designed to obtain high temperatures. Its principle of operation is based on the projection of all the incident radiation of a reflecting surface on a specific point.

        • Evacuated Tube Solar Collector

          The evacuated tube solar collector consists of a set of cylindrical tubes, formed by a selective absorber, located on a reflector settlement and surrounded by a transparent glass cylinder.

      • Solar Accumulator

        A solar accumulator is an element in charge of storing the energy obtained through solar energy for when it is necessary to use it.

      • Heat Exchanger

        A heat exchanger is a device designed to transfer heat between two media that are separated by a barrier, or that are in contact.

      • Solar Concentrator

        A solar concentrator is a device that, by means of different systems, concentrates the solar radiation on the photovoltaic cells. It can also be used in solar thermal installations.

      • Heliostato

        A heliostat is a device that is used to guide and concentrate the sun's rays. It is used in solar thermal power plants and other fields such as astronomy or geodesy.

    • Low-Temperature Solar Thermal Energy

      Low-temperature solar thermal energy uses solar energy to obtain temperatures below 65ºC. Applications: water heating, heating, pool heating ...

    • Medium Temperature Thermal Solar Energy

      Low temperature thermal solar energy is used in applications that require temperatures between 100ºC and 250ºC.

    • Solar Furnace

      A solar furnace is a structure that concentrates solar radiation to produce high temperatures using parabolic reflectors or heliostats.

  • Renewable Energy

    Renewable energies come from practically inexhaustible natural sources. Learn about the different types of renewable resources, how energy is obtained and how they impact the environment.

    • Geothermal Energy

      Geothermal energy is a renewable energy that uses the heat in the inner layers of the earth. It is a clean, efficient and constant energy.

      • Geothermal

        Geothermal energy is the discipline that studies the set of natural phenomena involved in the production and transfer of heat or thermal energy from the interior of the Earth.

      • Uses Of Geothermal Energy

        Uses of geothermal energy can be divided into two major fields: direct use to obtain heat, heating and cooling and the generation of electricity.

        • Geothermal Heat Pump

          The geothermal heat pump is an air conditioning system for buildings that exploits the exchange of heat with the surface subsoil, by means of a heat pump.

        • Generation Of Electricity

          Obtaining electrical energy through geothermal energy. Geothermal power plants are responsible for converting heat inside the earth into electricity.

      • Advantages And Disadvantages

        Geothermal energy is an energy obtained from the heat stored inside the Earth. Its use implies certain advantages and disadvantages.

      • Origin Of The Earth's Heat

        The origin of terrestrial heat is the sum of physical and chemical processes that take place inside it. Processes and types of deposits.

      • Geothermal Plant

        A geothermal plant is an installation where electricity is generated by geothermal energy, that is, the heat energy inside the Earth.

    • Wind Power

      Wind energy is a renewable energy whose origin is wind, that is, it transforms the kinetic energy of wind into other forms useful for human activities.

      • Advantages And Disadvantages

        Know the advantages and disadvantages of the use of wind energy compared with other sources of renewable or non-renewable energy.

      • Wind Turbines

        A wind turbine is a machine to convert wind kinetic energy into electrical energy. Wind turbines are the essential elements for wind energy.

    • Hydropower

      Hydropower is a renewable energy that exploits the transformation of potential energy, possessing water at a certain elevation, in kinetic energy to overcome a certain height difference.

      • Hydroelectric Power Plant

        A hydroelectric power plant is a facility designed to generate electricity by taking advantage of the potential energy of the water stored in a dam located at a level higher than the power plant.

      • Hydraulic Turbines

        The hydraulic turbine is a mechanical device capable of transforming the kinetic and potential energy of a liquid into mechanical energy. They are cassified according to their design and its way of functioning.

        • Kaplan Turbine

          The Kaplan turbine is a hydraulic jet turbine that uses small gradients, up to a few tens of meters, but with large flows.

        • Francis Turbine

          The Francis turbine is an internal flow hydraulic reaction turbine that combines both radial flow and axial flow concepts. It is the type of turbine most used in hydroelectric plants.

        • Pelton Turbine

          A Pelton turbine is a hydraulic turbine. It is one of the most efficient turbines of the types of turbines used in hydropower installations.

      • Advantages And Disadvantages

        Hydropower is a source of renewable energy that uses water to generate electricity. This particularity implies certain advantages and disadvantages.

      • Mini-hydraulic Power Plant

        A mini-hydro power plant is a power station, which works using hydraulic energy. They are characterized by the fact of having a reduced installed power.

      • Hydroelectric Power

        Hydroelectric energy is the electrical energy produced in a hydroelectric power station from a current, vertical or horizontal, of a river. It is the part of the hydraulic energy responsible for obtaining electrical energy.

    • Biomass Energy

      Biomass energy is a source of renewable energy. Biomass is composed of biological waste from our homes, gardens or fields, or is even produced especially in the field through special crops.

    • Seawater Energy

      Tidal energy is the energy obtained from the movements of water caused by the tides. It represents a source of renewable energy.

    • Blue Energy

      Blue energy is the energy that comes from osmosis. Such a difference can be used in places where fresh water flows into the sea.

    • Other Renewable Technologies

      Technologies for obtaining renewable energy in the development phase. In addition to the main sources of renewable energy there are many other technologies that could be important in the future.

  • Non-renewable Energy

    Non-renewable energy is energy generated through an exhaustible energy source. For example, fossil fuels (coal, oil and natural gas) and nuclear energy.

    • Fossil Fuels

      Fossil fuels are those fuels caused by the partial decomposition of organic matter millions of years ago. Coal, oil and natural gas

      • Petroleum

        Petroleum is a fossil fuel. It is a complex non-homogeneous mixture of hydrocarbons formed by hydrogen and carbon.

        • Petroleum Formation

          Petroleum is a derivative of old fossilized organic materials, such as zooplankton and algae. Oil is a fossil fuel from which non-renewable energy can be obtained.

      • Coal

        Coal is a naturally occurring sedimentary rock. I know as fossil fuel for its high calorific value.

      • Gas Natural

        Natural gas is a fossil fuel. It is made up of a mixture of hydrocarbons. It has a very high calorific value.

      • Fossil Energy

        Fossil energy is energy that comes from the combustion of fossil fuels. It is a non-renewable energy source.

      • Fracking

        Fracking is the exploitation of the pressure of a fluid, to create and then propagate a fracture in a layer of rock in the subsoil for the extraction of oil or gas contained in the subsoil.

    • Biofuels

      Biofuels are fuels obtained from biomass or organic waste. you get a liquid fuel that can be used in the engines of the vehicles.

      • Generations Of Biofuels

        The different generations of biofuels indicate the evolution that the production of this energy resource has had over time. Currently, there are 4 different generations.

      • Biofuels Uses

        Biofuels are used to generate different types of liquid fuels. In this section we analyze the pros and cons of each of them.

    • Nuclear Energy

      Nuclear energy is the energy obtained from the division (nuclear fission) or union (nuclear fusion) of an atom.

    • Thermal Power Plant

      A thermal power plant is a plant that generates electricity by transforming heat. Generally the source of heat comes from fossil fuels although it can also come from other sources.

  • Electricity

    Electricity is the form of energy due to the movement of electrons or gates. Learn in a simple way how electrical energy is transmitted.

    • Electricity Generation

      Electricity generation is the process of generating electricity from primary energy sources usually with the help of generators.

    • Electric Current

      Electric current is the flow or movement of electric charges, normally through a cable or any other conductive material. The unit of measurement is Ampere A.

      • Amperage

        Current intensity is the electrical charge that passes through a section of the conductor in a unit of time. In the SI of measures it is expressed in amps.

        • Ampere

          The ampere is the base unit of the international measurement system that is used to measure the intensity of electric current.

        • Ampere-hour

          The Amp-hour is the unit used to specify the capacity of a battery; the amount of electricity it can store during charging and return during discharge.

      • Alternating Current

        Alternating current is a type of current characterized by changing over time, either in intensity or in direction, at regular intervals.

      • Direct Current

        Direct current is a type of electric current where the direction of flow of electrical charges does not vary. Electrons always flow in the same direction.

      • Electric Charge

        The electrical charge is a fundamental conserved size for certain subatomic particles that determine its electromagnetic interactions.

      • Rated Voltage

        The rated voltage is the specific potential difference for which a device or installation is designed. The nominal adjective implies that tension may vary due to different circumstances during the operation.

      • Volt

        The volt is the unit of electric potential and electromotive force of the international measurement system. It is the tension between two points of a conductor.

    • Static Electricity

      Static electricity refers to the accumulation of excess electrical charge (positive or negative) in a conductive or insulating material.

    • Watt

      The watt is the unit of electrical power, it measures the energy per unit of a second. One watt equals one July per second.

      • Kilowatt

        The kilowatt is a unit of power equivalent to 1000 watts. The watt is the unit of international system, equivalent to one joule per second.

  • Thermodynamics

    Thermodynamics studies the movement of heat between a physical system. This study is determined by thermodynamic principles.

    • Laws Of Thermodynamics

      Thermodynamics is mainly based on a set of four universally valid laws when applied to systems that fall within the constraints implicit in each.

      • Zero Law Of Thermodynamics

        The zero law of thermodynamics states that when two bodies are in thermal equilibrium with a third, they are in thermal equilibrium with each other.

      • First Law Of Thermodynamics

        First law of thermodynamics: Energy is neither created nor destroyed, it remains constant. Principle of energy conservation.

      • Second Law Of Thermodynamics

        It is not possible to design a thermal machine capable of converting all the heat absorbed into work. This means that the efficiency or performance of thermal machines is less than 100%.

      • Third Law Of Thermodynamics

        The third law of thermodynamics states that the entropy of a system at the temperature of absolute zero is a well-defined constant.

    • Thermodynamic System

      A thermodynamic system is a portion of the material space, separated from the rest of the thermodynamic universe by means of a real or imaginary, rigid or deformable control surface.

      • Open System

        An open system is a system that continuously interacts with its surroundings. The interaction can take the form of information, energy or material transformations at the border with the system.

      • Thermodynamic State

        A thermodynamic state is a set of values ​​of properties of a thermodynamic system that must be specified in order to reproduce the system.

    • Thermodynamic Cycles

      A thermodynamic cycle is a circuit of thermodynamic transformations carried out in one or more destined devices. The objective is to obtain work from two sources of heat at different temperatures.

      • Rankine Cycle

        The Rankine cycle is a thermodynamic cycle composed of two isoentropic transformations and two isobars. Its purpose is to transform heat into work.

    • Thermodynamic Processes

      A thermodynamic process is the evolution of certain thermodynamic magnitudes related to a certain thermodynamic system. These transformations must go from a state of initial equilibrium to an end state.

      • Isothermal Process

        An isothermal process is a thermodynamic transformation at constant temperature, that is, a variation of the state of a physical system during which the temperature of the system does not change with time

      • Adiabatic Process

        An adiabatic process is a thermodynamic process in which the system does not exchange heat with its surroundings. If the process is irreversible, it is called the isentropic adiabatic process.

        • Adiabatic Wall

          An adiabatic wall is a wall that does not allow heat transfer from one side to the other. It does not allow the transfer of thermal energy from one side to the other.

      • Isobaric Process

        In thermodynamics, an isobaric process is a change in the state of a certain amount of matter in which the pressure does not change, but one or more of its state variables.

      • Isochoric Process

        The isocoric process is a thermodynamic process that occurs in a constant volume. In an isochoric process, the pressure of an ideal gas is directly proportional to its temperature.

    • Thermodynamic Properties

      A thermodynamic property is a characteristic that allows the changes of the work substance, that is, changes of energy. They can be classified between intensive and extensive properties.

      • Temperature

        Temperature is a magnitude that highlights the thermal energy of a body. It is represented by the Celsius, Kelvin and Farenheid scales.

        • Celsius Degrees

          The degree Celsius is the unit of a temperature measurement scale. The Celsius scale sets the melting point of ice at 0 ° C and the boiling point at 99,974 ° C.

        • Kelvin

          Kelvin is the temperature unit of the International System. A difference of one kelvin is equivalent to that of one degree Celsius.

        • Fahrenheit Degree

          The degree Fahrenheit is a unit of temperature. The Fahrenheit degree is not a SI unit. The Fahrenheit scale is officially used in five countries: the Bahamas, Belize, the Cayman Islands, Palau, and the United States.

      • Heat

        Heat is the energy that is transferred as a result of a chemical or nuclear reaction between two systems or between two parts of the same system.

        • Calorimeter

          A calorimeter a device to measure the amount of heat released or absorbed in any physical, chemical or biological process.

        • Heat Transfer

          Heat transfer is the flow of heat between two bodies at different temperatures. The transfer can be done by radiation, conduction or convection.

      • Thermal Energy

        Thermal energy is the part of the internal energy of a balanced thermodynamic system that is proportional to its absolute temperature.

      • Internal Energy

        In thermodynamics, internal energy is the total energy that a thermodynamic system contains, the sum of the internal potential energy and the internal kinetic energy.

      • Entropy

        Entropy is a defined quantity to predict the evolution of thermodynamic systems. It is an extensive state function.

      • Enthalpy

        Enthalpy is a state of thermodynamics function that measures the maximum energy of a thermodynamic system theoretically capable of being removed from it in the form of heat.

    • Chemical Thermodynamics

      Chemical thermodynamics is the branch of thermodynamics that studies the thermal effects caused by chemical reactions, called the heat of reaction.

      • Chemical Energy

        Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction.

    • History Of Thermodynamics

      The history of thermodynamics is a fundamental piece in the history of physics, chemistry, and science in general. Its evolution is finely woven with the developments of mechanics, magnetism, and chemical kinetics, to apply in a variety of fields.

      • William John Macquorn Rankine

        William John Macquorn Rankine was a Scottish engineer and physicist. He wrote standard works of mechanics, steam theory and practice, civil engineering principles and mechanical construction principles.

  • Blog

    Blog about solar energy. Find here interesting articles, opinions and studies that help you better understand the world of solar energy.

    • Climate Change

      The term climate change refers to the variations of the Earth's climate of one or more years. For this, multiple environmental and climatic parameters are taken into account in their average values.

      • What Is The Greenhouse Effect?

        The greenhouse effect allows solar radiation to pass through the atmosphere of a planet but makes it difficult to release thermal energy from it.

      • Global Warming

        Global warming is the process of gradually increasing the temperature of planet Earth. The main cause is the increase in greenhouse gases.

      • Photosynthesis

        Photosynthesis is a chemical process that converts carbon dioxide into organic compounds, especially using the energy of solar radiation.

    • What Is The War Of The Currents?

      The war of the currents is a term for the fight between the manufacturers of the two different feeding systems, alternating current and direct current in the United States.

    • Stirling Engine

      The Stirling Engine was invented as an alternative to the steam engine. Its operation is based on the expansion and contraction of a gas using a heat source.

    • What Is Kinetic Energy?

      Kinetic energy is a form of energy that a body has in motion due to the inertia of mass. The kinetic energy is directly proportional to the mass and the square of the velocity.

    • What Does Photovoltaic Mean?

      Photovoltaic is everything related to the conversion of light to electrical energy. For example, a photovoltaic panel, the photovoltaic effect the photovoltaic cell or the photovoltaic energy.

    • Steam Turbine

      A steam turbine is a device that is used to convert the high pressure of the steam into the rotation of an axis that provides power output.

    • What Is The Thermal Sensation?

      Thermal sensation is a measure of the sensation of cold or heat that humans perceive in the air as a function of wind, the Sun or humidity.

    • Electric Generator

      An electric generator is a device designed to produce electricity from a different form of energy. Its design depends on how the energy is presented at origin, usually they are mechanical, chemical, photovoltaic or directly thermal energy.

    • Electrolyte

      The electrolyte, in the case of batteries used in photovoltaic systems, is a diluted solution of sulfuric acid in which the different processes that allow the charging and discharging of the battery are verified.

    • What Is A Photon?

      Each of the particles that make up the light. A photon is the quantum of energy in the form of electromagnetic radiation, emitted or absorbed by matter.

    • Frequently Asked Questions

      Frequently asked questions and answers about domestic solar installations. Photovoltaic and thermal, amortization, maintenance ...

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