Langfang thermal power phase II project reaches full capacity after Unit 4 enters commercial operation

According to Xinhua News Agency, at 23:55 on 12 August, Unit 4 of the 2×350 MW equal-capacity replacement scheme for the Guodian Power Langfang Thermal Power Phase II project under China Energy Investment Corporation successfully completed a 168-hour full-load trial run. All performance indicators meet design specifications and the unit has formally commenced commercial operation, marking the full commissioning of the whole Langfang Thermal Power Phase II development.

Unit 4 serves as the supporting engineering platform for research into innovative high-efficiency flexible coal-fired power technology at Huairou National Laboratory. It deploys several pioneering technical packages, including flue gas-coupled molten salt thermal storage, new ultra-low-load stable combustion burners and multi-parameter steam admission for turbines integrated with molten salt systems. 

The installation provides practical engineering demonstration for coal-fired assets to deliver flexible peak regulation and clean heating within new power system frameworks.

During construction, a three-tier management mechanism with daily scheduling, weekly reviews and monthly summaries guided delivery schedules. Comprehensive engineering quality controls were rolled out to implement lean management, incorporating daily construction benchmarking inspections and weekly special reviews to secure full oversight of critical working procedures. 

Dedicated teams supervised clean construction work for key processes around the clock, adjusting operational parameters dynamically throughout the build phase to maintain high engineering standards. 

Within the commissioning window, streamlined rapid response workflows accelerated delivery milestones. Teams secured boiler ignition, turbine first rotation and grid connection on successive days before completing the stringent 168-hour reliability trial.

Full operation of the second phase adds 21 million square metres of residential heating coverage, lifting the overall heating capacity to 40 million square metres. Emission performance exceeds national ultra-low emission limits and Hebei Province’s Class A environmental performance standards. The expanded plant supports local domestic heating, clean low-carbon urban development and strengthened regional electricity supply security.

Technical experience gathered on site will inform future retrofits and new coal-fired facilities tasked with balancing variable renewable generation and meeting steady heat demand across northern China.