May 23, 2017
Circa 1941. From uncaptioned photos by Barbara Wright taken in and around Knoxville of various Tennessee Valley Authority flood control and hydropower projects, as well as the photographers picnicking on a mountain. View full size.
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Circa 1941. From uncaptioned photos by Barbara Wright taken in and around Knoxville of various Tennessee Valley Authority flood control and hydropower projects, as well as the photographers picnicking on a mountain. View full size.
DoED Issues Survey Licenses to 99 Hydropower Projects in FY 2025/26
KATHMANDU, July 21: The Department of Electricity Development issued survey permits to 99 hydropower projects with a combined capacity of 3,211 MW during the fiscal year 2025/26. The department also granted survey permits to seven solar power projects with a combined capacity of 311 MW. In the transmission sector, survey permits were issued for projects covering 179 circuit kilometers of 220 kV…
NEA Directs PPA-Signed Energy Projects to Submit Progress Reports Within Seven Days
Kathmandu: The Nepal Electricity Authority (NEA) has directed promoter companies of hydropower and solar energy projects that have already signed Power Purchase Agreements (PPAs) and are currently under construction to submit their project progress reports within seven days. The NEA’s Electricity Trade Department under the Business Development Directorate issued a public notice on Friday,…
38 Hydropower Projects Facing License Cancellation Over Lack of Progress
Kathmandu: A high-level committee has recommended that the government revoke the licenses of 38 hydropower projects with a combined capacity of 1,388 MW that have failed to begin meaningful construction despite having signed Power Purchase Agreements (PPAs). The five-member committee, formed by the Ministry of Energy, Water Resources and Irrigation, reviewed licenses issued by the Department of…
Government Prioritizes Energy Sector to Drive Economy: Finance Minister Wagle
Kathmandu, May 10: Minister for Finance Dr. Swarnim Wagle asserted that the government has prioritized the energy sector as a driver of the country’s economy. Acknowledging the growing contribution of the energy sector to the national economy, Minister Wagle reiterated the government’s commitment to advancing the sector with a special priority. The Minister articulated the government’s priority…
Sudurpashchim holds 18,000 MW hydropower potential, but output remains below 1%
Kathmandu: Despite having vast hydropower potential with river basins such as the Mahakali, Seti, and Karnali, Sudurpashchim Province has been found to have extremely low electricity production. At an interaction program organized in Kathmandu by the Independent Power Producers’ Association, Nepal (IPPAN), Chairperson Ganesh Karki stated that although the province has an estimated potential of…
Understanding Modern Hydropower Technology and Innovations
Understanding Modern Hydropower Technology and Innovations
Hydropower technology has evolved significantly over the years, with modern innovations improving efficiency, reducing environmental impact, and enhancing grid integration. From advanced turbine designs to sophisticated monitoring systems, hydropower technology is continually advancing. This article explores the latest technologies and innovations in the hydropower sector.
Key Components of Modern Hydropower Technology
Advanced Turbine Designs:
Francis Turbines: Suitable for medium head and medium flow applications, modern Francis turbines incorporate advanced materials and designs to improve efficiency.
Kaplan Turbines: Designed for low head and high flow applications, Kaplan turbines feature adjustable blades to optimize performance under varying water conditions.
Pelton Turbines: Used for high head and low flow applications, Pelton turbines utilize multiple nozzles to direct water onto the turbine buckets, maximizing energy extraction.
Smart Grid Integration:
Grid Stability: Integrating hydropower plants with smart grids allows for better management and distribution of electricity, improving overall grid stability.
Demand Response: Hydropower plants can quickly adjust their output to meet changing electricity demand, providing valuable grid services.
Pumped Storage Technology:
Energy Storage: Pumped storage hydropower plants pump water from a lower reservoir to an upper reservoir during off-peak hours, storing energy. The water is then released back down to generate electricity during peak demand.
Variable Speed Pumped Storage: Using variable speed drives for pumps allows for more efficient energy storage and release.
Run-of-River Technology:
Minimal Reservoir: Run-of-river hydropower plants divert a portion of a river’s flow through turbines without creating a large reservoir, reducing environmental impact.
Hydropower Developers Seek Policy Stability for Sustainable Energy Growth
Kathmandu: Private energy producers have warned that Nepal’s energy sector is heading toward serious uncertainty, policy instability, and crisis by 2025. Hydropower project development, in particular, has reached a critical stage. According to Prakash Dulal, Deputy Secretary General of the Independent Power Producers’ Association of Nepal (IPPAN), private sector energy entrepreneurs are agitated…