Spain

CASTRO II — 195 MW Hydroelectric

Hydroelectric Renewable Verified

CASTRO II is a 195 MW hydro power plant located in Spain. View location, capacity, and technical details.

Capacity
195 MW

Installed

Commissioned
1977

Year online

Owner
IBERDROLA GENERACION S.A.

Operator

Location
41.58, -6.19

Coordinates

Insights

#130
largest in Spain
#1,495
largest Hydroelectric worldwide
#7,585
largest worldwide
1977
7 yrs older than avg
32
operated by IBERDROLA GENERACION S.A.
48
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
195 MW
Commissioned
1977
Status
Operational
Owner
IBERDROLA GENERACION S.A.
Country
Spain
Coordinates
41.576, -6.189

Carbon Footprint

Annual CO₂
16,423 t

tonnes / year

Lifetime CO₂
1,313,849 t

over ~80 yrs

Intensity
24 g

Est. gCO2/kWh

Annual emissions equivalent to

3,570
cars per year
2,190
homes per year
746,505
trees to offset

Renewable source — life-cycle emissions only (materials/construction), no direct combustion. Open calculator

Nearby Plants

About this plant

The CASTRO II hydro power generation facility stands as the 130th largest in Spain, with a capacity of 195.29 MW, accounting for approximately 0.16% of the country’s total energy output. Spain’s energy landscape is characterized by a dominant reliance on gas, yet hydroelectric power remains a vital component of the diverse energy mix. With a total capacity of 122,104 MW across 981 plants, CASTRO II plays an essential role in leveraging renewable resources to support national energy goals, particularly in a country that is increasingly investing in sustainable solutions.

This facility employs advanced hydroelectric technology, utilizing the natural flow of water to generate electricity without the emissions associated with fossil fuels. As the 36th largest hydro plant in Spain, CASTRO II contributes significantly to local and national grids, providing a clean and reliable energy source. Its strategic placement near other significant hydro plants, such as the Villarino hydro power plant and Central Hidroeléctrica de Villarino, both boasting capacities of 857 MW, enhances the collective output of the region. This clustering of hydroelectric facilities allows for effective resource sharing and operational synergy, optimizing energy production.

In the regional context, CASTRO II benefits from its proximity to these larger plants, creating a robust hydroelectric cluster that strengthens the local energy grid. The interconnected nature of these facilities enables them to collectively manage peak loads and ensure a steady supply of electricity, particularly during high-demand periods. The reliance on hydroelectric power in this region of Spain plays a critical role in maintaining energy stability and reducing dependency on fossil fuels.

Spain’s national energy profile highlights a growing emphasis on diversifying energy sources, with gas being the primary fuel. The hydroelectric capacity offered by plants like CASTRO II is essential for balancing the grid and supporting the transition towards renewable energy. As part of Iberdrola Generacion S.A.’s portfolio, CASTRO II has been operational since 1977, reflecting a long-standing commitment to sustainable energy production.

Looking forward, CASTRO II is poised to remain a vital asset in Spain’s energy strategy, contributing to the reduction of carbon emissions and fostering economic growth through renewable energy initiatives. As the country advances its sustainability targets, the significance of hydroelectric power will only increase, positioning CASTRO II as a key player in the ongoing energy transformation.

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