Welcome to Onna
TRUSTED PARTNER
The projects below represent over a decade of MEP engineering and contracting delivery across three continents. Each project was managed end-to-end by our own engineering and installation teams — from initial assessment and budgeting through design, procurement, installation and commissioning. Our portfolio spans diplomatic missions, commercial developments and hospitality facilities, delivered in compliance with international standards and client-specific requirements."
PROJECTS
PROJECTS
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''2 Fevrier'' Radisson Hotel
TOGO’S ONLY 5-STAR LUXURY HOTEL
​''ONNA delivered complete electrical engineering and installation services for the renovation of the historic Hotel 2 Février in Lomé, Togo — one of West Africa’s leading 5-star hotels. The project scope covered all electrical power distribution, low current and life-safety systems across 33 floors, 256 rooms and 64 residences within a 60,000 m² facility, transforming it into a fully operational Radisson-branded hotel. All systems were designed and installed in compliance with both European (EN) and French (NFC) electrical standards.''
Project Information
Location
I Lome, Togo
Year
I 2015-16
Market Sector
I Hospitality
Facility
I 60.000 m2
33 Floors
256 Rooms
64 Residences
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Existing Facility
Technical Scope
Generator System
UPS System
Power Distribution System
Electrical Panels
Sockets and Outlets
Lighting fixtures
Lightning and Earthing System
Data and Network System
Telephone System
Fire Detection System
Access Control System
IP CCTV System
Lighting Control System
Background Music and Announcement System
Professional Audio and Video Systems
IP TV System
Radisson Collection Hotel (Ex-Sheraton)
MALI'S LEADING 5-STAR LUXURY HOTEL
''ONNA provided full electrical engineering and contracting services for the Radisson Collection Hotel in Bamako, Mali — a 5-star, 16,000 m², 200-room hotel. The project was delivered from design through to commissioning in compliance with European (EN) and French (NFC) electrical standards, as well as NFPA fire protection codes in accordance with Marriott Group operator requirements."
Project Information
Location
I Bamako, Mali
Year
I 2016-18
Market Sector
I Hospitality
Facility
I 16.000 m2
200 Rooms
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Technical Scope
Power Distribution System
Electrical Panels
Sockets and Outlets ​
Lighting System
Lightning and Earthing System
Medium Voltage System
Transformer System
Generator System
UPS System
BMS System
Public Announcement System
Audio and Video Systems
IP TV System
Guest Room Energy Management System
Energy metering system
Data and Network System
Telephone System
Fire Detection System
Access Control System
IP CCTV System​
Embassy of Netherlands
Embassy of Netherlands located in Bamako, MALI
''ONNA served as the electrical engineering and installation contractor for the Embassy of the Netherlands in Bamako, Mali. All systems were designed and installed in accordance with European (EN) standards, Dutch government security requirements and local regulatory standards.''
Project Information
Location
I Bamako, Mali
Year
I 2018-19
Market Sector
I Diplomatic
Facility
I 2.000 m2
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Technical Scope
Generator System
Power Distribution System
Electrical Panels
Sockets and Outlets​
Lighting fixtures
Energy metering system
Lightning and Earthing System
Data and Network System
Telephone System
Fire Detection System
Access Control System
CCTV System
SMATV System
Novotel Orisha by ACCOR
Novotel Hotel located in Cotonou, Benin
"ONNA delivered complete electrical engineering and installation services for the Novotel Orisha in Cotonou, Benin — a 9,000 m², 100-room hotel renovation project. All works were executed in compliance with European (EN) and French (NFC) electrical standards and Accor Group operator requirements."
Project Information
Location
I Cotonou, Benin
Year
I 2018-19
Market Sector
I Hospitality
Facility
I 9.000 m2
100 Rooms
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Existing Facility
Technical Scope
UPS System installation
Power Distribution System
Electrical Panels
Sockets and Outlets
Lighting fixtures installation
Lightning and Earthing System
Energy metering system​
Audio and Video Systems
Data and Network System
Telephone System
Fire Detection System
Access Control System
CCTV System
Public Announcement System
IGA Istanbul Airport
Largest Airport in the world by 2022, Airport of the year 2023
ONNA delivered the installation and commissioning of ADB Safegate Visual Docking Guidance Systems (VDGS) at Istanbul Airport — the world’s largest airport terminal by roof area. The project covered 155 gates, including all mechanical, electrical and communication system installations required for gate-apron operations."
Project Information
Location
I Istanbul, Turkiye
Year
I 2019-20
Market Sector
I Aviation
Facility
I 155 Gates
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Technical Scope
VDGS System
Mechanical Systems
Electrical Panel
Operation Panels
Communication System
Doha British School
Rawdat Al Hamama - British School in Doha Qatar
"ONNA was appointed as the technical consultant for the Rawdat Al Hamama British School in Doha, Qatar — a 15,000 m² educational facility. The scope of services covered full MEP tender management, including budget estimation, cost analysis, tender preparation, subcontractor evaluation and contract award."
Project Information
Location
I Doha, Qatar
Year
I 2020-20
Market Sector
I Education
Facility
I 15.000 m2
Related Services
Pre-execution
Technical Scope
Substation
Generator plant
Power distribution System
Earthing, lightning protection.
Luminaries, sockets, outlets, fans ​
Public Announcement System
Access Control System
CCTV System
Data Network System
HVAC
Water storage tanks
Pumps and control panels
Plumbing
Soil, waste, rainwater piping.
Sanitary fixtures and fittings.
Fire detection ,alarm and fire fighting system
Mandarin Villas and Residences
Europe's leading Hotel Residences, 2022-23-24
"ONNA carried out the complete design and build of all electrical and mechanical systems for a private renovation project at the Mandarin Oriental Villas and Residences in Bodrum, Türkiye. The 3,000 m² project required full MEP system replacement including HVAC, electrical distribution, plumbing, fire protection and building automation — all delivered to the operator’s ultra-luxury specification standards."
Project Information
Location
I Mugla, Turkiye
Year
I 2022-24
Market Sector
I Hospitality
Facility
I 3.000 m2
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Existing Facility
Technical Scope
Regulator System
L. V. panels, distribution boards
Earthing, lightning protection.
Luminaries, sockets, outlets, fans
Wiring for low voltage systems.
Lighting Control System
HVAC Control System
CCTV System
Data Network System
HVAC
Water storage tanks
Water Treatment System
Pumps and control panels.
Plumbing
Soil, waste, rainwater piping.
Sanitary fixtures and fittings.
Pool Heating System
Fire detection ,alarm and fire fighting system
Joint Embassy Compound
Embassy of Netherlands, Canada, Norway, Sweden, UK in South Sudan
"ONNA served as the electrical engineering and installation contractor for the multinational Joint Embassy Compound in Juba, South Sudan — a complex comprising embassy offices, residential apartments, security buildings, representation facilities and technical areas for the diplomatic missions of the Netherlands, Canada, Norway, Sweden and the United Kingdom. The project required compliance with five distinct national regulatory frameworks and included solar energy, hybrid power management and building management systems alongside full electrical distribution, low current and life-safety installations."
Project Information
Location
I Juba, South Sudan
Year
I 2020-22
Market Sector
I Diplomatic
Facility
I Embassy Offices
Apartments
Security Building
Representation Building
Fitness Center
Technical Areas
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Existing Facility
Technical Scope
Generator System
Power Distribution System
Synchronization System
Solar Energy System
Hybrid Energy Management System
Electrical Panels
Electrification of the HVAC and Plumbing Equipment
Lighting fixtures​
​Building Management System
Lightning and Earthing System
Data and Network System
Audio System
Telephone System
Fire Detection System
Access Control System
CCTV System
TV System
Public Announcement System
High Commission of Canada
High Commission of Canada in Abuja,Nigeria
"ONNA delivered the rectification and electrical systems upgrade of the workshop, annex buildings and landscape areas at the High Commission of Canada in Abuja, Nigeria. The project was executed under a design and build framework in direct collaboration with Global Affairs Canada (GAC)."
Project Information
Location
I Abuja, Nigeria
Year
I 2024-24
Market Sector
I Diplomatic
Facility
I Workshop
Annex Buildings
Landscape
Related Services
Pre-execution
Design Aid/Design-Bid-Build/ Bid-Build
Existing Facility
Technical Scope
​Power Distribution System
Electrical Panels
Electrification of the HVAC and Plumbing Equipment
Lighting fixtures​
Lightning and Earthing System