IGA International Geothermal Association

Portugal (The Azores) - Electricity Generation

Installed geothermal generating capacity (December 2009) in MW 

Sao Miguel, Azores28

In Portugal, exploitation of geothermal resources for electric power generation has been developed successfully on the largest and most populous Azores island, São Miguel by Electricidade dos Açores. The Ribeira Grande field (about 250°C) has been expanded to a total capacity of 28 MW, through a second binary unit at Pico Vermelho of 13 MW in 2006, covering about 40% of the electricity need of the island (23 MW net). It is expected to double the contribution of geothermal electricity in the coming years

On Terceira island a project for installing 12 MW is ongoing (Pico Alto field, where temperature of above 300°C have been recorded), as well as additional expansion of Ribeira Grande, with a forecasted investment of about 200 MEuro in the next years. Unfortunately, the lack of request on the other small island will not allow the realization of any important development, despite the presence of a good resource.

The increase of 13 MW from year 2005 has a very important percentage value: 78%, reaching one of the highest score.

Taken from Ruggero Bertani’s paper, " Geothermal Power Generation in the World 2005–2010 Update Report ", published in Proceedings of the World Geothermal Congress 2010, Bali, Indonesia, 25-29 April 2010.