The integrated leader in sustainability infrastructure.
As a trusted global partner, we deliver infrastructure that empowers lives and shapes the future. With a generation capacity of 98.0 GW, our portfolio powers more than 16 million households and supplies over 6.8 million households with 9.7 million m³ of desalinated water every day.
Founded in 2005. Trusted with critical infrastructure ever since.
Acwa Operations, formerly NOMAC (First National Operations & Maintenance Company), is a wholly owned subsidiary of Acwa. We operate and care for power and water assets that millions of people rely on every day — delivering safe, reliable operations and maintenance services across electricity generation and water desalination.
With operations across the Middle East, Africa, Central Asia, China and Southeast Asia, our teams combine global experience with deep local insight. Alongside our own portfolio we support external clients as a trusted third-party O&M provider.
Our in-house field services division, Acwa Field Services (formerly NMES), plays a vital role — a leading regional non-OEM service provider supporting plants with outage management, on-site machining, valve repair and rapid-response maintenance when it matters most.
People, capability & local value
We actively develop local talent, creating opportunities for professionals from our host communities to become experts in power, water and hydrogen technologies. Fundamental infrastructure should be built, operated and sustained by the people it serves.
A lean, accountable structure
Few management layers and a strong focus on execution enable faster decision-making, closer engagement with plant teams and a clear understanding of what is happening across our operations every day.
Operations & maintenance excellence
We operate and maintain large-scale power generation and water desalination assets across power, water, renewable energy, green hydrogen and related technologies with consistent standards worldwide.
Full-lifecycle operations, from mobilisation to optimisation.
Six service lines covering the entire lifecycle of a power or water asset — delivered with consistent standards in every region we operate.
End-to-end operations & maintenance
Full lifecycle support covering engineering design review, plant mobilisation, commissioning and long-term operation, delivered with consistent standards across regions.
Technical advisory & consultancy
Practical guidance to help improve system performance, strengthen reliability and support compliance, informed by hands-on operational experience.
Performance monitoring & optimisation
Centralised oversight supported by advanced analytics, digital twins and real-time data to help identify issues early and improve asset efficiency.
Outage management & major equipment maintenance
Planned and unplanned outage support, including overhauls and maintenance of gas turbines, steam turbines, generators, pumps, thermal desalination systems and RO facilities.
Reliability & efficiency improvement programmes
Structured programmes that use root cause analysis, failure-mode assessments and risk-based maintenance approaches to reduce downtime and extend asset life.
Spare parts planning & logistics
Strategic sourcing, inventory management and procurement support to help ensure operational continuity and reduce supply-related risks.
A fleet-wide Monitoring & Prognostics Center — since 2017.
The MPC brings together asset data from across the portfolio, standardises data collection, secures information through cloud-based systems and uses real-time processing to support continuous oversight. Prognostic analytics, digital twins and machine learning help anticipate equipment behaviour and operational risks — all vendor-neutral.
Performance dashboards give plant teams and central operators clear visibility, alerts, case management, automated reporting and cost-avoidance insights. Centers today in Saudi Arabia and the UAE, with further expansion underway in Central Asia.
~588,717 tCO₂e by 2030
Expected annual emissions reduction through proven digital and operational interventions, contributing to Saudi Arabia's NDC target of 278 million tCO₂e per year under the Circular Carbon Economy framework.
Matthew York, President
At Acwa Operations, our role is clear: to operate critical power and water assets with care, discipline and a deep sense of responsibility. Every day, our teams focus on keeping facilities safe, reliable and ready to serve the communities that depend on them.
Today, our teams support a portfolio with a generation capacity of 98.0 GW and 9.7 million m³/day of desalinated water, working across 16 countries with a shared commitment to consistent standards and dependable operations.
“None of this would be possible without our people. We know our teams, we understand their roles, and we take care of them — ensuring they are supported financially, developed professionally and empowered to grow over time.”
Complex works, delivered faster than the industry expects.
360 MW generator rotor & stator rewind
Completed in 35 weeks — significantly faster than OEM timelines exceeding 100 weeks.
On-site generator rotor shaft repair
Complex heat treatment and precision machining completed on site in just 18 days.
240 MW steam turbine ring gear replacement
Fully engineered and executed on site in only 5 days.
Rotor rebuild using laser welding
Fully engineered and executed on site within 8 days, including journal recovery.
110 project sites directory
Showing 110 of 110 operational plants
Talk to Acwa Operations.
For O&M enquiries, partnerships or third-party services, our team is ready to help. Reach us at the corporate office or in any of our regional locations.