Recently, the full construction and precise commissioning of the UBP Holtekamp Power Plant Unit 2 Dust Collector Retrofit Project in Papua (Indonesian: PENGADAAN DAN REVERSE ENGINEERING SISTEM PENGENDALI DEBU UNIT 2 UBP HOLTEKAMP) have been fully accomplished, with the facility officially put into stable commercial operation. Delivering three core achievements including upgraded ultra-standard environmental compliance, remarkable energy conservation & cost reduction and long-term stable unit performance, the project has set an exemplary benchmark for overseas power plant renovation with cutting-edge technologies and boosted the green energy transition across Papua.

1. Efficient Execution Ensures On-Time Project Delivery

The project broke ground on April 9, 2026, finished all construction work on April 21, initiated trial operation of Unit 2 on May 8 and completed comprehensive flue dust concentration inspection on May 21. Throughout the construction cycle, strict management was implemented over construction quality, site safety and schedule milestones. The on-site engineering team overcame various construction obstacles with round-the-clock dedication and professional expertise, securing high-quality on-time delivery and laying a solid foundation for the unit’s long-term steady operation.

2. Three Major Technical Breakthroughs Establish Industry Benchmark Standards

Outstanding Environmental Performance with Visible Clean Emission Improvements

● Post-retrofit professional testing shows the average outlet dust concentration of the revamped dust collector stands at only 172.73mg/Nm³, far below the contractual upper limit of 400mg/Nm³, marking a leap-forward improvement in pollutant emission reduction.

● Visible upgrade on stack flue gas: When Unit 2 runs independently, the stack emits pale clear white flue gas with zero visible dust fallout. In contrast to the yellowish flue gas under dual-unit parallel operation, the drastically upgraded dust removal delivers tangible environmental benefits with visibly cleaner sky and verified emission control results.

Optimized Equipment Performance with Fully Upgraded Dust Capture Capacity

● Stable operational pressure drop: The dust collector maintains a full-load operating pressure drop below 900Pa after renovation with minimal load fluctuation and stable operating conditions, strongly supporting long-cycle safe continuous operation of the generating unit.

● Optimized ash discharge system: Unit 2 boasts drastically improved ash removal efficiency with fine off-white collected fly ash. Compared with coarse black granular fly ash from Unit 1, the revamp achieves a qualitative leap in dust interception and collection with full-coverage zero-miss dust governance.

Notable Energy Saving & Cost Cutting Delivering Win-Win Economic and Ecological Benefits

Under equivalent unit load conditions, the induced draft fan of Unit 2 registers an hourly current reduction of 5.61A versus Unit 1. Based on an annual runtime of 7,000 operating hours, the project saves 346,879 kWh of electricity yearly, greatly cutting auxiliary power consumption of the power plant and realizing dual gains in environmental protection and economic returns.

3. Fulfilling Green Development Mission to Set a Benchmark for Overseas Renovation Projects

The completion of Unit 2 dust collector renovation fundamentally resolves chronic drawbacks of the original system including low dust removal efficiency, excessive power consumption and frequent operational risks, putting into practice the philosophy of green low-carbon development and facilitating local ecological preservation and green upgrade of the regional energy sector.

Furthermore, the project has accumulated a complete set of replicable mature experience covering standardized rapid construction, refined system commissioning and professional intelligent operation & maintenance. It provides a promotable benchmark solution for similar environmental upgrade projects of power generating units worldwide and fully demonstrates DaTongLongYuan’s core technical prowess in energy equipment retrofit and comprehensive competitiveness for overseas EPC services.

Moving forward, the company will stay committed to the development principles prioritizing safety, environmental protection, technological innovation and economic efficiency. We will keep exploring technological breakthroughs and equipment upgrading in the global energy industry while expanding overseas footprint, empowering low-carbon industrial transformation with proprietary core technologies and contributing Chinese expertise to the high-quality green development of the global energy sector.