PESE Completes 2026 Minor Overhaul at Hau Giang Biomass Power Plant

In October 2026, PECC2 Energy Services and Engineering Company Limited (PESE) successfully completed the minor overhaul at Hau Giang Biomass Power Plant, mobilizing a team of qualified technical personnel to carry out the assigned scope of work.

The overhaul covered equipment inspection, cleaning, maintenance, and condition assessment, demonstrating PESE's comprehensive Operation and Maintenance (O&M) service capabilities. These activities contribute to maintaining equipment reliability and supporting the plant's operational efficiency.

Coordinated Maintenance Across Multiple Equipment Systems

At Hau Giang Biomass Power Plant, PESE carried out maintenance activities across the boiler system and its auxiliary equipment, including the Air Preheater (APH), Economizer, Screw Feeder, fan systems, and Condensate Extraction Pump (CEP). In parallel, the Electrical (E) and Control & Instrumentation (C&I) teams performed equipment inspections, maintenance, and testing in accordance with the approved work plan

For the APH system, the work focused on cleaning heat exchanger tube assemblies, inspecting weld joints and tube surfaces, assessing wall thickness at locations showing potential irregularities, and cleaning the ash hopper. These activities helped evaluate equipment conditions and provided essential information for subsequent maintenance planning.

For the electrical systems, inspection, measurement, and testing activities were carried out to assess equipment conditions, identify potential issues, and verify technical readiness for operation following maintenance.

Through close coordination among the Mechanical, Electrical (E), and Control & Instrumentation (C&I) teams, PESE was able to execute multiple maintenance activities simultaneously, ensuring an integrated approach to work execution and technical inspection.

Early Detection of Equipment Issues to Improve Maintenance Effectiveness

Beyond completing the scheduled scope of work, PESE placed strong emphasis on equipment condition inspections to identify early signs of deterioration or potential defects. This approach helps customers maintain better visibility of equipment conditions and plan maintenance activities proactively.

Identified issues were documented and promptly referred to the relevant departments for further assessment and consideration of appropriate corrective actions. In this way, PESE goes beyond scheduled maintenance by providing technical information that helps customers monitor equipment conditions and improve plant maintenance and operational management

Inspection, Corrective Actions, and Technical Verification

One notable case during the minor overhaul involved the motor of a soot blower. Initial measurements indicated that its insulation resistance was below the required level. Further inspection revealed water ingress into the motor terminal box, resulting in moisture affecting the motor windings.

The motor was dismantled for inspection, cleaned, and dried before undergoing repeat electrical testing. Following these corrective actions, the test results met the applicable technical requirements.

This case highlights the importance of a condition-based approach to equipment inspection and maintenance: identifying abnormal indications, investigating their root causes, implementing appropriate corrective measures, and verifying the results before returning equipment to service.

This reflects PESE's approach to technical services: delivering not only the assigned work but also placing emphasis on inspection quality and the clear verification of results following corrective actions.

100% Work Completion in Compliance with Technical and Safety Requirements

PESE successfully completed 100% of the assigned minor overhaul scope for the Electrical (E) and Control & Instrumentation (C&I) systems, meeting the required schedule, technical specifications, and safety standards.

Following maintenance, the equipment was re-energized and successfully returned to normal operation.

This achievement demonstrates PESE's capabilities in work planning, technical coordination, and equipment inspection. Furthermore, the identification and handover of issues requiring further assessment helped ensure that equipment-related information was properly communicated for review by the relevant parties within their respective responsibilities.

PESE – A Trusted O&M Partner for Power Plants and Industrial Customers

For plant owners and industrial customers, maintenance effectiveness is measured not only by timely completion but also by inspection quality, the ability to identify potential risks, and the value of technical information in supporting equipment management.

Through the 2026 minor overhaul at Hau Giang Biomass Power Plant, PESE further demonstrated its technical service capabilities by integrating scheduled maintenance, equipment condition inspections, and coordinated assessment of identified issues.

With a focus on developing Operation and Maintenance (O&M) services backed by technical expertise, disciplined execution, and close customer collaboration, PESE strives to deliver solutions tailored to the actual operating conditions of each plant and customer.

Through this approach, PESE contributes to maintaining equipment reliability and supporting sustainable, long-term operational efficiency.

PESE – Working alongside customers to maintain equipment reliability and enhance long-term operational efficiency.

By PESE.