Turkey's Reservoirs Hit Record Highs: 139.9 % Surge Fuels a Hydro Power Upswing

The Turkish Electricity Transmission Company’s Water Report reveals that by 19 July, reservoir full capacity climbed to 71.3 %—up from 61.4 % in 2024 and 51.7 % in 2023.

Record Reservoir Levels

■Total active water volume: 72.53 billion cubic metres

■Year‑on‑year increase: 139.9 %

■Compared to 2023’s 30.24 billion cubic metres, this represents more than double

Hydro‑Electric Output Surges

■First six months saw a 68 % rise, reaching 57 billion kWh

■2023 figure: 33.9 billion kWh

■Hydropower’s share of total electricity production surpassed 32 %

Spring‑Season Inflow Momentum

■May delivered the most abundant inflow: 19.3 billion cubic metres

■February, April, June saw 2‑3× the previous year’s inflow

■First 19 days of July recorded a total inflow of 3.436 billion 829 thousand cubic metres

Key Reservoirs in Focus

■Keban, Deriner, Altınkaya, Hirfanlı, Boyabat, Oymapınar, Alpaslan‑1

■Adıgüzel, Alkumru, Almus, Batman, Demirköprü, Dicle, Ermenek, Garzan, Hasan Uğurlu, Karacaören, Kemer, Kılıçkaya, Kralkızı, Kuzgun, Kandil, Özlüce, Sarıyar, Tercan, Torul, Uzunçayır, Yamula, Yedigöze

Market and Policy Implications

■195.1 % of the planned 37.18 billion cubic metres target achieved

■Surpassing the long‑term average of 55.93 billion cubic metres by 29.7 %

■Rising hydro share could lower energy costs and enhance competitive advantage

Markets will likely see that water abundance strengthens supply, bolstering energy company balance sheets and potentially stabilising interest and currency volatility.