Hydropower & Dams

After passing a correct Issue 4 for press recently, the Aqua-Media team was shocked to discover that the issue has been published with the first page of an article missing, and the last page of the preceding article repeated, forming a rather unusual double-page spread. The article ‘A screening-level cost model for geomembrane-lined pumped-storage reservoirs’ will be republished in Issue 5 (in its entirety!), so subscribers can read the full version then. But we have posted the article here too, so that all readers can access it without delay. As the journal will be circulated at events in the USA and Canada later this year, corrected copies of the whole journal are being printed for that extra distribution. We are grateful to the authors of the paper for taking this incident (unprecedented in our 33 year history!) with such good grace and understanding.

Delegates from more than 35 countries gathered in Porto, Portugal, for HYDRO HYBRIDIZATION 2026 on 30 June and 1 July, providing a truly international forum for those involved in hybrid renewable energy systems, solar PV, hydropower, dam safety, storage systems and grid management. Geographical representation spanned Africa, Asia, Europe and the Americas, and delegates ranged from experts in hybrid systems to newcomers exploring potential and development opportunities in their countries. Here a few photographic highlights from HYDRO HYBRIDIZATION 2026 in Porto.

HYDRO 2025 was successfully held in Thessaloniki, Greece from 22-24 October 2025, bringing together more than 1000 international hydropower specialists from 69 countries. Here are just a few photographic highlights from the event. A brief report will be published in H&D Issue 6, 2025, followed by a full report in Issue 1, 2026 .