Nestled in the pristine landscapes of Taplejung, Palun Khola Hydropower Limited stands tall as a testament to harnessing nature’s potential for the benefit of the community. This groundbreaking venture, located in Mikhawa Gaupalika, is set to redefine the energy landscape of Koshi Province.
Project Overview: Energizing Communities
Palun Khola Hydropower Limited embraces the essence of a Run-of-River scheme, tapping into the kinetic energy of Palun Khola to generate a staggering 21 MW of clean, renewable power. This venture operates with a Gross Head of 299.50 meters, providing a reliable source of energy to the ever-expanding Taplejung Bazar.
Hydrology at its Best: A Symphony of Nature and Engineering
The project’s catchment area, spanning 187.48 km2, contributes to an annual flood capacity of 127.37 m3/s, showcasing the harmonious balance between environmental sustainability and cutting-edge engineering. With an average annual precipitation of 2316.33 mm, Palun Khola Hydropower Limited is strategically positioned to harness the region’s natural bounty.
Innovative Infrastructure: From Weir to Generator
Our project features a state-of-the-art sloping glacis free overflow concrete weir, standing at an impressive height of 6.00 meters. The weir is complemented by a 35.00-meter stilling basin, ensuring the smooth flow of water through the system.
Equipped with two undersluice gates measuring 2.10 meters by 2.10 meters each, the intake structure boasts a side intake design with two openings, each measuring 4.10 meters by 2.00 meters. A meticulously designed gravel trap, featuring a hopper-shaped configuration, serves as a vital component in ensuring the longevity and efficiency of the system.
Tunnels and Transmission: The Arteries of Energy Flow
Palun Khola Hydropower Limited boasts an intricate network of tunnels, including construction tunnels, headrace tunnels, and offset tunnels. These engineering marvels, shaped in an inverted D, traverse the undulating terrain, delivering water to the powerhouse with precision.
The surge shaft, a circular shaft with a simple orifice, stands tall at 24.60 meters in depth and 8.00 meters in diameter. This critical element of the project maintains operational stability, ensuring a continuous and controlled flow of energy.
Power Generation and Beyond: Towards a Sustainable Future
With two synchronous generators with a horizontal shaft, each operating at an impressive 97% efficiency, Palun Khola Hydropower Limited is committed to delivering high-quality, reliable energy. The generated power is transmitted through a 132 kV transmission line, spanning 9 km to the powerhouse of Mewa Khola HPP and 12 km to the substation.
Financial Indicators: Balancing Progress with Prudence
Palun Khola Hydropower Limited is not just a marvel of engineering but a financially viable venture. With a project life of 30 years, a benefit-cost ratio on project investment of 1.41, and an internal rate of return on project investment of 14.29%, the venture signifies a commitment to both economic and environmental sustainability.
Conclusion: Lighting Up the Future
In conclusion, Palun Khola Hydropower Limited represents a shining beacon of sustainable energy in the heart of Koshi Province. With a meticulous design, innovative infrastructure, and a commitment to environmental responsibility, this project is set to power communities and industries for generations to come. As construction progresses over the next 36 months, the journey towards a brighter, greener future for Taplejung and beyond is well underway.