Photovoltaic solar energy
We are harnessing the power of the sun
We are champions of photovoltaic solar energy. At Iberdrola, we are committed to the fight against climate change, which has driven us to support renewable energy sources 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 18% of the investments earmarked for renewables in the Strategic Plan 2024-2026, which will increase installed solar capacity by around 2,100 MW, with a portfolio of 1,900 MW. Iberdrola had a total of 7,470 MW of photovoltaic power as per the nine months 2024.
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 a 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.
Advantages of photovoltaic solar energy
Optimal for rural areas
A system suitable where power lines do not reach or are difficult to install
Modulable according to need
It can be produced in small generator installations and in large photovoltaic plants
Green jobs
Contributes to the creation of green jobs and local economic growth
More information
Photovoltaic energy, key in the fight against climate change
-
Avangrid completes installation of 105,000 modules for its first PV plant in California
-
Iberdrola begins installation of modules at Camino Solar (California)
-
Iberdrola Australia enters Queensland market with Broadsound Solar Farm and Battery
-
Iberdrola increases its renewable production in Portugal with two new photovoltaic plants
-
Iberdrola begins producing clean energy at its True North photovoltaic plant in Texas
-
Iberdrola begins installation of the Powell Creek solar plant in the United States
-
Iberdrola begins construction of its first photovoltaic plant in California
-
Iberdrola and FCC sign an agreement to promote photovoltaic panel recycling
-
Iberdrola tests Antecursor II robot at its Villarino photovoltaic 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.
- 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 continuous electrical energy produced by the panels is converted into alternating current by the inverters
- Transformers raise the electricity to a medium voltage (up to 36 kV)
Our most emblematic photovoltaic solar energy projects
-
True North, Avangrid's largest solar photovoltaic project in Texas
-
Francisco Pizarro, the largest photovoltaic plant in Europe
-
Santiago, our largest photovoltaic plant in the world
-
Lund Hill, Washington's biggest solar project
-
The Cedillo photovoltaic project, a real engineering challenge
-
Núñez de Balboa, one of the biggest photovoltaic plant in Europe
Do you want to work with us?
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. Committing to solar energy means committing to the fight against climate change and accelerating decarbonisation.
Discover solar energyWhat 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. Committing to solar energy means committing to the fight against climate change and accelerating decarbonisation.
Discover solar energyArticles from our guest authors
-
- ANTARES, accelerating the development of renewable energies
Ester Cámara
Estefanía Segovia
- ANTARES, accelerating the development of renewable energies
-
Iberdrola and Solvay are partnering in a new project to supply green electricity to Solvay's plants in Tavaux and Saint Fons (France). Under the agreement, a 172-hectare site will be used to build a photovoltaic power plant, part of whose...
Iberdrola has obtained the Environmental Impact Statement (EIS) for the construction of a new 375 MW photovoltaic project in the town of Cedillo in Cáceres. This new plant will have sufficient capacity to supply 178,000 homes with clean energy,...
-
Facebook Iberdrola obtains environmental impact statement for new 375 MW
photovoltaic plant in Spain
-
Twitter Iberdrola obtains environmental impact statement for new 375 MW
photovoltaic plant in Spain
-
Linkedin Iberdrola obtains environmental impact statement for new 375 MW
photovoltaic plant in Spain
-
Whatsapp
-
-
Iberdrola is consolidating its position as the leading promoter of photovoltaic solar energy , one of the most efficient technologies in the fight against climate change. The company's commitment to the development of this renewable source...
Iberdrola has started to commission two new photovoltaic plants in Extremadura. These facilities, called Majada Alta and San Antonio, are located in the Cáceres town of Cedillo and have a combined capacity of 100 megawatts (MW), enough to...
-
Iberdrola continues to make progress with its investment strategy in the Iberian Peninsula, with the commissioning of the Algeruz II photovoltaic plant, the group's first facility of this type in Portugal. The plant has more than 50,500 fixed,...
The use of solar energy has grown exponentially in recent years thanks to technological advances in order to exploit the potential of clean energy. Bifacial solar panels have emerged as an alternative that can increase photovoltaic energy production by up to 30% of additional power thanks to the fact that both sides of the panel are able to absorb the sun's energy.