Operations & Maintenance

Fully integrated O&M solutions for power generation assets worldwide — delivering industry-leading reliability, performance, and cost-effectiveness.

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Comprehensive O&M Services

GESA delivers fully integrated Operations & Maintenance (O&M) solutions for power generation assets worldwide — including gas turbines, steam plants, generators, hydroelectric units, and hybrid facilities.

Our hands-on experience spans the Americas, Africa, the Middle East, and Southeast Asia, empowering us to deliver services that consistently exceed industry benchmarks for reliability, performance, and cost-effectiveness.

Whether deploying embedded technical teams or managing full-scope lifecycle services, GESA brings together the people, systems, and tools to ensure your plant performs at its peak — safely efficiently, and profitably.

GESA Operations & Maintenance Excellence

Why Choose GESA as your O&M Partner?

  • Backed by 15+ years of global O&M experience
  • 40+ Countries Served
  • Supported by 600+ technical experts and specialists
  • 8 Regional Offices (including US (HQ), Turkey, Qatar, Malaysia, Nigeria)
  • 1,200 MW+ of installed capacity under active O&M contracts
  • Proven OEM-Grade Expertise
  • Availability Record: 98.9%+ across multiple long-term contracts
  • Trusted by leading energy operators: Pipeline Compressor Stations – Turkey, Natural Gas Storage Facility – Turkey, Powership (floating power plant) – Gabon, Hydro Power Plants - Turkey, Other types of power plants – (Qatar, Malaysia, Botswana, Nigeria, Turkey, …)
24/7 Plant Operations

24/7 Plant Operations

  • Routine Operations and Maintenance services (predictive, preventive, corrective, reactive)
  • All metering, testing and inspection activities (Including fuel management)
  • All administrative functions and reporting
  • Environmental and regulatory compliance management (including waste management)
  • Performance monitoring and optimization
Maintenance Management

Maintenance Management

  • Comprehensive lifecycle maintenance programs
  • OEM-based preventive maintenance routines
  • Level-1 / Level-2 site-level inspections (including borescope, alignment, hot section Exchange, etc.)
  • Scheduling and execution of planned and unplanned maintenance
  • CMMS-driven work order and inventory management
  • Spare parts sourcing, tooling care, and logistics management
  • Reliability-centered and condition-based maintenance strategies
Performance Optimization

Performance Optimization

  • Availability improvement initiatives for performance optimization and cost reduction
  • Turbine efficiency assessments, retrofits and lifecycle extension studies
  • Heat rate and load optimization
  • Emissions reduction and fuel saving strategies
  • KPI-driven reporting tied to bonus/penalty clauses
  • Technology upgrade assessments

Long-Term Service Agreements

  • Multi-year O&M contracts
  • Fixed, variable, or hybrid pricing models
  • Performance-based agreements
  • Guaranteed availability and uptime commitments
  • Performance-linked incentives & penalties
  • Modular inclusion of spares, tooling, staffing, and reporting
  • Scalable and flexible service scopes based on plant size and customer needs

Asset Management

  • Full asset lifecycle planning
  • Capital planning and budgeting
  • Spare parts forecasting & inventory optimization
  • Warranty claim administration
  • Vendor/3rd party management
  • Contract administration
  • Cost tracking, reporting, and KPI benchmarking

Technical Support

  • Field services for major overhauls and HSEs
  • OEM-equivalent troubleshooting and field engineering
  • Root cause failure analysis and redesign
  • Technology assessments, design modifications and performance upgrades
  • Remote support capability
  • Knowledge transfer and on-site staff training programs

Our Value Proposition

  • Operational Excellence: Industry-leading plant uptime, availability and reliability
  • Cost Optimization: Measurable savings via predictive diagnostics, optimized staffing, and efficient outage planning
  • Risk Management: Shared accountability models with transparent KPIs
  • Technical Expertise: Deep knowledge across all major turbine and generator technologies
  • Global Reach: Local presence with global technical support capabilities
  • Flexibility: Customized solutions tailored to specific plant and customer requirements

Explore Our Other Services

Field Services

World-class field services for power plants, focusing on aeroderivative, heavy-duty, and steam turbines.

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Parts & Components

OEM-aligned supply for all major power generation platforms with worldwide logistics support.

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Technology Expertise

Advanced power generation systems across aeroderivative, heavy-duty, and renewable technologies.

Learn More →