Summary
The report finds that drought has caused a permanent decline in Turkey's hydroelectric capacity factors, leading to a reliance on natural gas to compensate for the loss, which increases energy imports by an estimated 1.8 billion dollars annually.
Key insights
- Drought has led to a permanent decline in the efficiency of hydroelectric power plants in Turkey. The average capacity factor for these plants dropped from 38% between 1996 and 2005 to 26% over the last 10 years, a trend also observed at the Atatürk, Karakaya, and Keban dams.
- Hydroelectric power and natural gas plants act as substitutes in Turkey's energy mix. Because Turkey remains heavily dependent on imported gas—with domestic production meeting only 5% of consumption in 2025—decreases in hydroelectric output directly increase natural gas imports and threaten energy security of supply.
- The permanent impact of drought on hydroelectric production results in an average annual cost of 1.8 billion dollars in additional energy imports. This is based on the observation that a 29% production drop (-6.2 TWh) at the three largest dams alone leads to 400 million dollars in extra annual natural gas imports.
Cite the original document
- APA
- Ember (2026). Hidroelektrik. https://ember-energy.org/tr/chapter/hidroelektrik/
- Chicago
- Ember. Hidroelektrik. 2026. https://ember-energy.org/tr/chapter/hidroelektrik/.
- Wikipedia
- {{cite report |author=Ember |title=Hidroelektrik |date=8 April 2026 |url=https://ember-energy.org/tr/chapter/hidroelektrik/ |access-date=17 August 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{ember2026hidroelektrik, author = {{Ember}}, title = {{Hidroelektrik}}, institution = {Ember}, year = {2026}, month = apr, url = {https://ember-energy.org/tr/chapter/hidroelektrik/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }
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