Bolarque: The Record-Breaking Plant
The largest plant of the group enters into operation in Spain
With a capacity of 126 megawatts and an expected production of over 200 GWh, the Bolarque photovoltaic plant has entered operation in the heart of the Guadalajara region in Spain – an area once served as a nuclear power plant now being decommissioned. Developed using innovative construction techniques and with a strong focus on sustainability, it is the largest plant built by EF Solare Italia to date, offering solutions that can be applied to future installations.
A strategic plant in the heart of Spain
Located in central Spain’s Guadalajara region, the Bolarque photovoltaic plant is now operational. It is the largest facility developed so far by EF Solare Italia through its subsidiary Renovalia. With an installed capacity of 126 MW and an expected annual output of over 200 GWh, the new plant will generate enough clean energy to meet the consumption needs of approximately 63,000 Spanish households. The project makes a tangible contribution to the energy transition and the reduction of CO₂ emissions.
The plant also carries symbolic significance: it stands near Spain’s first nuclear power plant—currently being dismantled—thereby helping to meet the region’s energy needs with renewable power, leveraging the existing electricity transmission network.
A construction site powered by the sun
From the outset, Renovalia adopted an advanced construction model. On-site machinery was powered by photovoltaic modules installed directly on the roofs of the vehicles and integrated with battery storage systems, ensuring operation even in low-sunlight conditions. These machines were used throughout the construction phase—from structure installation to cable laying—making the site partially energy self-sufficient. This was supported by an efficient organizational approach, allowing each operational team to carry out all installation phases independently.
High performance with environmental care
The plant consists of 231,150 bifacial modules, each with a power output of 545 watts-peak, 36 inverters manufactured in Spain, 3.7 MW each, and 15,410 metal support structures. Its fixed structure and optimized module layout ensure an annual production of over 200,000 MWh—enough to meet the needs of one-third of the population of the entire Guadalajara province.
From an environmental perspective, the plant will help avoid almost 90,000 tons of CO₂ equivalent emissions [1] annually. Specific measures have also been implemented to protect the local ecosystem, using technologies designed to reduce noise, air pollution, and the impact on wildlife.
An industrial vision supporting the energy transition
The commissioning of the Bolarque plant marks a major milestone in EF Solare Italia’s growth journey. With Bolarque entering operation, EF Solare Italia surpasses 1.2 GW of installed capacity, confirming a strategy focused on the development of new plants and the enhancement of its existing portfolio.
[1] Conversion factor: 446,3 gCO2eq/kWh. Source: ISPRA – Efficiency and decarbonization indicators in Italy and in the biggest European Countries. Edition 2024. “GHGs emission factors for electricity production by thermal power plants (g CO2eq/kWh). Countries in descending order of 2023 value”.