Diesel Generator Supply Project for Hydropower Clients in Tajikistan

PAUWAY delivered a total of 2 units of PWY series diesel generator sets to remote mountain communities and hydropower-complement facilities in Tajikistan, covering a power range from 200KW to 500KW at 50Hz. These units provide backup and peak-shaving power for high-altitude villages in the Pamir and Fann ranges, as well as supplementary power for small hydropower stations during low-water seasonal periods, where Tajikistan’s rugged mountain terrain and winter grid stress leave many areas power-deficient.

Project Background & Cooperation Overview

Tajikistan is the most mountainous country in Central Asia, with over 90% of its territory above 1,000 meters. While the country is rich in hydropower potential, much of the rural population lives in remote valleys disconnected from the national grid, and even grid-connected areas suffer winter power shortages when river flows drop and heating demand peaks. PAUWAY’s PWY series, powered by Yuchai engines and engineered with cold-weather packages, provides the high-altitude reliability and adaptability needed for Tajikistan’s extreme mountain operating conditions.

Core Equipment Configuration

Unit Parameters & Model Layout

This batch consists of 2 PWY series diesel generator sets with power ratings of 200KW and 500KW at 50Hz. Mountain community units feature insulated containerized enclosures with winterization packages including engine block heaters and battery warmers for sub-zero operation. Hydropower-complement units are configured for rapid start black-start capability, enabling them to restart local mini-hydro stations after grid collapse and provide peak-shaving support during low-water periods.

Project Positioning

High-altitude backup and hydropower-complement power for Tajikistan’s remote mountain communities and small hydro facilities, engineered for extreme elevation, winter cold, and the seasonal variability of renewable-based local grids.

Product Highlights

• Yuchai-powered PWY series with cold-weather calibration validated for Tajikistan’s high-altitude sub-zero winters
• High-altitude turbocharger matching and engine tuning for operation above 2,000m elevation in the Pamir ranges
• Black-start capability enabling units to restart local mini-hydro stations after complete grid collapse
• Insulated winterized enclosure with engine heaters and battery warmers for reliable cold-climate autonomous operation
• Russian and Tajik language documentation and control interface for local operator accessibility

Project Value & Implementation Difficulties

Project Significance

These installations improve energy access and resilience for Tajikistan’s remote mountain communities, reducing reliance on unreliable seasonal hydropower and supporting rural livelihoods, healthcare, and education. The project strengthens PAUWAY’s Central Asian presence alongside Kazakhstan and Kyrgyzstan, demonstrating adaptability to extreme high-altitude conditions.

Execution Challenges

Transporting heavy equipment over mountainous Pamir Highway routes to remote high-altitude sites; engine calibration for operation above 2,000m with reduced air density; cold-start validation for Tajikistan’s severe winter conditions; Russian/Tajik language training for mountain community technical teams.