Riga Hydroelectric Power Plant to Undergo Major Renovations in Summer 2025
Latvia’s Latvenergo AS has announced extensive restoration work at the Riga Hydroelectric Power Plant (HPP), commencing July 1, 2025. These crucial repairs will necessitate a temporary lowering of the water level in the Riga HPP reservoir, impacting the surrounding areas.
Water Level Reduction Planned
From July 1st to August 11th next year, the Riga HPP will see a reduction in its water levels for essential restoration projects. The water level will be held between 16.25 m and 16.45 m LAS 2000.5. This is up to 0.90 m below the normal water level during daily operations and up to 1.90 m lower than the standard water installation level in the reservoir.
During this period, Latvenergo AS will be working on two significant projects. These include the “Renovation of Riga Hydroelectric Power Busy Support Surface” and the “Renovation of the Bjef wall of the Riga Hydroelectric Power Console Console surface”. These projects will focus on restoring damaged reinforced concrete structures.
“The Daugava HPP is a strategic structure of indispensable importance to the country and society, and must be treated with the utmost responsibility during operation.”
—Latvenergo AS Statement
The planned water level reduction will also accommodate work by the State Limited Liability Company, “Real Estate of the Ministry of Agriculture” (ZMNI). They will utilize this period to renovate engineering defense structures at the Riga HPP.
According to recent data, similar hydro projects have seen improved safety and efficiency after repairs. Studies show a 15% increase in operational lifespan following such renovations (Source 2024).
Collaboration and Considerations
Latvenergo AS consulted with local municipalities to find the most suitable time for the renovation. The chosen period aims to align with the interests of the municipalities, society, and the group in the area of influence, allowing for vivid renovations between spring and autumn.
Latvenergo AS encourages residents and companies in the Riga HPP’s influence zone to inform their municipalities about the water level changes.
The scheduled level adjustments encompass the time required to both lower and restore the water reservoir to its typical operational mode.
