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    • Iberdrola Iberdrola
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    • Photovoltaic solar energy

    Photovoltaic solar energy

    We are committed to photovoltaic solar energy

    We promote photovoltaic solar energy. At Iberdrola, we are committed to the fight against climate change, which has led us to commit to renewable energies in order to make the energy transition a reality.

    As part of the plans to grow in clean energy, solar photovoltaic technology will be supported by 24 % of the investments earmarked for renewables in the 2023-2025 Strategic Plan, which will allow us to increase installed solar capacity by 6,300 MW.

    What is photovoltaic energy?

    Photovoltaic solar energy is a clean, renewable source of energy that uses solar radiation to produce electricity. It is based on the so-called photoelectric effect, by which certain materials are able to absorb photons (light particles) and release electrons, generating an electric current.

    A semiconductor device called photovoltaic cell is used for this purpose, which can be made of monocrystalline, polycrystalline or amorphous silicon, or other thin-film semiconductor materials. The cells made from monocrystalline silicon are obtained from a single crystal of pure silicon and achieve maximum efficiency, between 18 % and 20 % on average.

    Those made from polycrystalline silicon are made in blocks from several crystals, so they are cheaper and have an average efficiency of between 16 % and 17.5 %. Finally, those made from amorphous silicon have a disordered crystalline network, which leads to a lower performance (average efficiency between 8 % and 9 %) but also a lower price.

    energía fotovoltaica

    Advantages of photovoltaic solar energy

    Ilustration
    • Inexhaustible and non-polluting It does not consume fossil fuels and does not generate waste
    • Universal scope Can be obtained anywhere in the world 365 days a year
    • Storable Allows the installation of batteries to store surplus electricity
    • Optimal for rural areas A system suitable where power lines do not reach or are difficult to install
    • Green jobs Contributes to the creation of green jobs and local economic growth
    • Modulable according to need It can be produced in small generator installations and in large photovoltaic plants

    Photovoltaic energy, key in the fight against climate change

    • Solar hybrid plant
      Iberdrola completes construction of Spain's first hybrid wind-solar plant
    • Texas
      We built a photovoltaic plant in Texas to supply power to Facebook
    • Apicultura
      Facilitating beekeeping at Iberdrola’s photovoltaic power plants
    • Akzonobel
      Iberdrola Deutschland’s first turnkey PV system for on-site consumption enters operation
    • Algeruz
      “Solar grazing” is launched in Portugal with some 300 sheep
    • Oregon
      We commission the largest photovoltaic plant in Oregon, USA
    • Planta híbrida
      We build Spain's first hybrid wind-solar plant

    How do photovoltaic plants work?

    Photovoltaic solar energy is obtained by converting sunlight into electricity using a technology based on the photoelectric effect. It is a type of renewable, inexhaustible and non-polluting energy that can be produced in installations ranging from small generators for self-consumption to large photovoltaic plants. Find out how photovoltaic energy is obtained.

    How do photovoltaic power plants work?

    Ilustración
    • Thanks to the photoelectric effect, the electromagnetic radiation emitted by the sun is converted into electrical energy
    • The alternating electric energy, now suitable for consumption, is distributed along transmission lines
    • Photovoltaic panels are formed from cells that absorb light particles (photons) and release electrons or direct electric current
    • The continuos electrical energy produced by the panels is converted into alternating current by the inverters
    • Transformers raise the electrivity to a medium voltage (up to 36 kV)

    Our most emblematic photovoltaic solar energy projects

    • Fernando Pessoa
      We build the Fernando Pessoa plant, the largest photovoltaic project in Europe
    • True North
      True North, Avangrid's largest solar photovoltaic project in Texas
    • Francisco Pizarro
      Francisco Pizarro, the largest photovoltaic plant in Europe
    • Proyecto fotovoltaico Santiago y Hermosillo
      Santiago, our largest photovoltaic plant in the world
    • Lund hill
      Lund Hill, Washington's biggest solar project
    • Cedillo
      The Cedillo photovoltaic project, a real engineering challenge
    • Nuñez de Balboa
      Núñez de Balboa, one of the biggest photovoltaic plant in Europe
    And also
    • 1 We develop a photovoltaic plant in Salamanca
    • 2 We have a new plant in Villarino (Castilla y León)
    • 3 Otero, the second largest photovoltaic plant in Europe
    • 4 Ceclavín, our third photovoltaic project in Extremadura

    What is photovoltaic self-consumption?

    Photovoltaic self-consumption occurs when individuals or companies consume energy produced in photovoltaic generation installations close to the point of consumption. In addition to the solar panels themselves, photovoltaic self-consumption installations are made up of other elements such as inverters, cables, connectors and, optionally, batteries. This type of consumption not only saves on electricity bills, but also contributes to curbing climate change by using renewable energies.

    There are two types of photovoltaic self-consumption depending on the destination of the energy that the owner of the installation does not use: self-consumption without surplus, which does not involve the discharge of surplus energy into the grid; and self-consumption with surplus, which allows the injection of surplus energy into the transmission grid.

    More about solar energy

    What is solar energy?

    Solar energy is a renewable and inexhaustible source that allows us to generate electricity from the radiation that reaches us from the sun. Betting on solar energy means betting on the fight against climate change and accelerating decarbonization.

    Discover solar energy

    Solar radiation: what is its impact on the planet and on humans?

    Solar radiation is the energy emitted by the Sun through electromagnetic waves and life on Earth depends on it. In addition to determining atmospheric and climatological dynamics and trends, it makes plant photosynthesis possible, among other processes. There are several types of radiation with their harmful effects on health, especially on the skin in summer.

    Learn more about solar radiation

    Photovoltaic cells: evolution, types and innovations

    Photovoltaic solar energy is one of the most efficient renewable energy sources today, key to the decarbonisation of the planet. It is based on the photovoltaic cell, an electronic device capable of capturing and transforming light energy into electricity.

    Learn more about photovoltaic cells

    What is solar energy?

    Solar energy is a renewable and inexhaustible source that allows us to generate electricity from the radiation that reaches us from the sun. Betting on solar energy means betting on the fight against climate change and accelerating decarbonization.

    Discover solar energy

    Solar radiation: what is its impact on the planet and on humans?

    Solar radiation is the energy emitted by the Sun through electromagnetic waves and life on Earth depends on it. In addition to determining atmospheric and climatological dynamics and trends, it makes plant photosynthesis possible, among other processes. There are several types of radiation with their harmful effects on health, especially on the skin in summer.

    Discover solar energy

    Photovoltaic cells: evolution, types and innovations

    Photovoltaic solar energy is one of the most efficient renewable energy sources today, key to the decarbonisation of the planet. It is based on the photovoltaic cell, an electronic device capable of capturing and transforming light energy into electricity.

    Discover solar energy
    • offshore wind photovoltaic energy onshore wind Scottish Power

      Iberdrola to develop 16 new renewable projects in the UK after guaranteeing profitability

      The Iberdrola group will develop 16 new renewable projects in the UK after guaranteeing their profitability by obtaining Contracts for Difference (CfD) with the UK government that ensure their financial viability. CfDs are a financing mechanism...

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      photovoltaic self-consumption photovoltaic energy water

      Do you know about floating photovoltaic solar energy?

      Solar photovoltaic energy is one of the most important and well-established renewable energy sources. For the past few years, floating solar PV has been gaining ground, which, according to the World Bank, could double installed capacity. At the moment, it has gone from 61 MW in 2015 to more than 3 GW in 2021, with 688 MW added in 2020 alone.

      • Facebook Do you know about floating photovoltaic solar energy?
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    • photovoltaic self-consumption photovoltaic energy Iberdrola España

      Iberdrola leads solar self-consumption in Spain and manages 40% of installations

      Iberdrola leads the photovoltaic self-consumption market in Spain, managing 40% of the country's self-consumption customers. As part of its commitment to accelerating the energy transition and developing new products to improve efficiency and...

      • Facebook Iberdrola leads solar self-consumption in Spain and manages 40% of installations
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      PERSEO energy efficiency photovoltaic energy

      Cleaning solar panels, the key to maintaining their energy efficiency

      Improvements in efficiency and the drastic reduction in the cost of photovoltaic panels have allowed solar energy to become a fundamental part of the energy mix. However, it is necessary to have cleaning processes that prevent the accumulation of dirt and debris on the panels, ensuring their proper functioning and increasing their efficiency.

      • Facebook Cleaning solar panels, the key to maintaining their energy efficiency
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    • photovoltaic energy onshore wind operating plants Iberdrola International

      Iberdrola, present in Australia with the world's first wind-solar hybrid plant

      The Port Augusta Renewable Energy Park (PAREP) is Iberdrola's first renewable energy complex in Australia. It is a hybrid wind-solar plant with a total installed capacity of 317 MW and is located about eight kilometres southeast of Port Augusta, in the state of South Australia, in the coastal region bordering the southern Flinders Ranges.

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      Iberdrola projects photovoltaic energy

      Iberdrola develops Europe's second-largest photovoltaic plant

      Iberdrola has begun proceedings to develop the Otero photovoltaic plant, which, with installed capacity of 505 MW, will be the largest in Castilla y León (Spain) and the second largest in Europe. The plant will be built in the municipalities of Marazuela, Marazoleja and Anaya, in the province of Segovia, and represents an investment of nearly €220 million.

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