Browse the atlas
Asset classes
- Transmission Line80,968
- Power Plant32,429
- Substation / Converter7,614
- Oil & Gas Field7,055
- Coal / Uranium Mine5,382
- Pipeline4,951
- Cement Plant3,513
- Data Centre3,283
- Iron & Steel Plant1,293
- LNG Terminal1,198
- Grid Storage965
- Iron Ore Mine949
- Chemical Plant868
- Interconnector704
- Export Terminal519
- Refinery279
- Storage / Tank Farm38
- Oil / Commodity Contract19
- Hydrogen Project18
- Carbon Capture (CCS)16
Chokepoints
Portugal · asset class
Grid Storages in Portugal
Portugal has 14 grid storages mapped on the OverWatts open energy atlas — the 13th-largest fleet of the 58 countries that hold any, and 1% of the world's mapped total. Of these, 13 operating and 1 under construction or proposed. The largest is Minhéu hydroelectric plant (1.3 GW).
The largest owner-operators are EDP SA (9), Crédit Agricole Assurances SA (2) and ENGIE SA (2) — EDP SA alone is named on 64% of them. Half of Portugal's grid storages in service predate 2005 (median commissioning year of the 13 with a known date), 4 came online in the past decade and the oldest still listed is Alto Rabagão hydroelectric plant, dating from 1964. 1 is in the pipeline, led by Minhéu hydroelectric plant (1.3 GW), under construction. They account for 12% of every energy asset OverWatts maps in Portugal.
On the interactive map
Largest grid storages in Portugal
- Minhéu hydroelectric plant1.3 GW · construction
- Gouvães hydroelectric plant880 MW · 2022
- Venda Nova III hydroelectric plant780 MW · 2017
- Aguieira hydroelectric plant336 MW · 1981
- Foz Tua hydroelectric plant268 MW · 2017
- Alqueva I hydroelectric plant259 MW · 2003
- Alqueva II hydroelectric plant256 MW · 2012
- Salamonde II hydroelectric plant220 MW · 2005
- Venda Nova II hydroelectric plant191 MW · 2005
- Baixo Sabor Montante hydroelectric plant153 MW · 2016
- Torrão hydroelectric plant140 MW · 1988
- Vilarinho Das Furnas hydroelectric plant125 MW · 1972
- Alto Rabagão hydroelectric plant68 MW · 1964
- Feiticeiro hydroelectric plant38 MW · 2015
Who owns Portugal's grid storages
- EDP SA9 64%
- Crédit Agricole Assurances SA2 14%
- ENGIE SA2 14%
- Iberdrola SA2 14%
- Mirova2 14%
- EDPR Renewable Energy Sources of Greece 1 Sole Proprietorship1 7%
- Movhera1 7%
Counts an asset once per company named as its owner or operator; a joint venture counts for each partner.
When they were built
- 1960s1
- 1970s1
- 1980s2
- 2000s3
- 2010s5
- 2020s1
Median commissioning year 2005 · oldest Alto Rabagão hydroelectric plant (1964) · newest Gouvães hydroelectric plant (2022) · 13 of 14 carry a start date
Under construction & proposed
- Minhéu hydroelectric plant1.3 GW · construction
How Portugal compares · grid storages by country
- 1. China401
- 10. Philippines21
- 11. South Korea18
- 12. Switzerland17
- 13. Portugal14
- 14. United Kingdom12
- 15. France9
- 16. Greece9
Frequently asked
- How many grid storages are there in Portugal?
- OverWatts maps 14 grid storages in Portugal — 1% of the world's mapped total, the 13th-largest national fleet of the 58 countries with any.
- What is the largest grid storage in Portugal?
- Minhéu hydroelectric plant, at 1.3 GW.
- Who owns the grid storages in Portugal?
- EDP SA is named as owner or operator on the most — 9 of 14 (64%). Next are Crédit Agricole Assurances SA (2), ENGIE SA (2) and Iberdrola SA (2).
- How old are Portugal's grid storages?
- The median commissioning year is 2005, across the 13 in service with a known start date. The oldest still listed is Alto Rabagão hydroelectric plant (1964); 4 came online in the past ten years.
- What new grid storages are being built in Portugal?
- 1 project is under construction or proposed. The largest is Minhéu hydroelectric plant (1.3 GW).