Solar power plants in Spain

All about solar power plants in Spain − types, operation and locations

By harnessing the sun's energy, solar power plants represent an environmentally friendly alternative for long-term electricity generation. Find out what these plants are, what they do, and what types exist. 

Solar plants in Spain: what are they and what is their function? 

Solar power plants are facilities designed to harness solar radiation and convert it into electrical energy for use in homes, communities and businesses. 

This process of electricity generation produces no pollution, making solar energy one of the most efficient forms of renewable energy today, and making solar power plants essential tools for promoting a sustainable and environmentally friendly model in the long term. 

Types of solar power plants in Spain 

There are two types of solar power plants depending on their operating system: 

• Grid-connected plants. In this type of plant, there are, in turn, two types: the photovoltaic power plant, where the energy produced by the panels is sent directly to the grid, and the self-consumption generator, where part of the electricity is consumed by the producer himself and the rest is sent to the grid. Both installations have three key components:

  • Photovoltaic panels, which capture solar radiation and convert it into electricity.

  • Inverters, which transform the direct current from the panels into alternating current, ready for consumption. 

  • Transformers, which increase the AC voltage to medium voltage levels (up to 36 kV).

• Off-grid power plants. This type of facility operates independently (islanded) and is often found in remote locations and on farms. They are used to meet lighting demands, support telecommunications and pump irrigation systems. For their operation, they need two basic elements:

  • Batteries: store the energy produced for use when needed.

  • Controllers: protect the battery against overcharging. 

How do solar power plants work

Map of Iberdrola España's solar power plants

Spain has a privileged position in terms of solar energy generation, as it is one of the European countries with the greatest potential for harnessing it. For this reason, at Iberdrola España, we prioritise the promotion of solar energy through our solar power plants, distributed throughout the country. 

Find the main operational data of Iberdrola España's solar power plants through this interactive map. Find out all about the facilities that we have in Spanish regions − which are key to promoting a greener and cleaner future in the country.

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