International Water Power & Dam Construction weekly newsletter
International Water Power & Dam Construction
IWP&DC provides technical insight behind the news headlines for the global dam construction and hydropower industry
Nepal’s Sunkoshi Marin Tunnel completed 11 months ahead of schedule
In Nepal’s Sindhuli District, a tunnel boring machine (TBM) broke through 11 months ahead of schedule on May 8, marking a significant milestone for the Sunkoshi Marin Diversion Multipurpose Project (SMDMP). The 6.4m diameter Robbins Double Shield machine successfully navigated challenging geology to complete the 13.3km tunnel, making it one of the longest TBM-driven tunnels in the Himalayan region and the second such tunnel completed in Nepal.
Inyanga Marine Energy Group and Verdant Morlais Ltd form tidal energy partnership
Inyanga Marine Energy Group and Verdant Morlais Ltd (VML) have signed a Memorandum of Understanding to develop a 4.9MW tidal stream energy project at Morlais in Wales. This project is part of the largest consented tidal energy scheme in Europe.
Applications open for Women in Hydropower Mentorship Program
The Women in Hydropower Mentorship Program is now accepting applications for the 2024-2025 cycle. Applications will be accepted until August 2, 2024. This program aims to support the growth, networking, and empowerment of women in the hydropower industry.
BII invests in hydropower and wind expansion in Tanzania
British International Investment (BII) has announced a significant investment agreement with Meridiam , aiming to bolster hydropower and wind power capacity in Tanzania. The agreement, signed today, commits $15 million to the Meridiam-owned Rift Valley Energy (RVE), with a potential increase to $25 million, to support the installation of an additional 7.6MW of renewable energy for Tanzania’s national grid.
Floods impact Axpo Group hydropower plants in Misox, Switzerland
Six hydropower plants operated by Axpo Group in Misox GR, Switzerland, have been affected by recent floods. In response, these plants have been systematically shut down over the past few days. All facilities, along with their reservoirs, remain in a safe state and are partially operational, Axpo said. Plans for recommissioning will be made in coordination with the relevant authorities.
Partial failure reported at Rapidan Dam in Minnesota following severe flooding
The Rapidan Dam in Minnesota, US, is facing a critical situation following recent flooding of the Blue Earth River. Officials issued a warning on Monday, stating that the dam is in “imminent failure condition.”
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Macquarie Asset Management to sell stake in Hydro Dolomiti Energia
Macquarie Asset Management has agreed to sell its 40% stake in Hydro Dolomiti Energia (HDE) to a consortium which includes Equitix Euro Funds, Tages Capital SGR S.p.A., La Finanziaria Trentina S.p.A., and local industrial co-investors and institutions. The deal values the business at about €1 billion.
Scottish Water apprentice wins top awards with hydropower project
A Scottish Water apprentice has won both Scottish and UK awards for his innovative work and presentation on generating electricity using the natural flow of water, less than a year into his job.
Uniper recommissions Happurg pumped storage plant
Uniper has announced the recommissioning of the Happurg pumped storage plant near Nuremberg, with an investment of around €250 million. The plant, expected to be back online in 2028, will help stabilize southern Germany’s electricity supply by storing energy and balancing the fluctuating output from renewable sources.
Combating cavitation and erosion at hydropower plants
Erosion and cavitation are wear mechanisms that can reduce the effective working life of machinery components in hydropower plants. Applying an ultra-hard wearfacing coating can add durability but varying conditions mean that every site is different. Inaki Ezpeleta, applications engineer at Castolin Eutectic , explains how wear coatings can be tailored to provide site-specific resistance to erosion and cavitation – and how this ensures high availability and reliability.
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