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Renewables What We Do


Wind Measurement Services – Met Mast Design

Obelisk installs, refurbishes, maintains and decommissions met masts and wind measurement instruments. Our masts currently range from 15m up to 150m, and are certified by the designing engineer for each site.


Wind Measurement Services - Met Mast Installation

Obelisk has installed a number of temporary Masts on REIPPPP wind farms, as well as permanent masts used for site calibration and Power Curve Verification. Obelisk also offers data monitoring services and is an accredited installer of SODAR and LIDAR units.

Health and Safety Services during construction

Obelisk has supplied HS&E Services to a number of REIPPPP projects. The services include acting as Client Agent on behalf of Owners and Developers, providing Health & Safety Officers on site during construction, and providing Safety Specification and Compliance Services.


Statutory Inspection Services

South African legislation requires a series of tests and inspections to be conducted on turbine components including cranes, anchor points, lifts, fall arrest systems, PPE, lifting tackle and rescue kits. Obelisk is accredited as a Lifting Machinery Entity by the SA Department of Labour.

Obelisk supplies ECSA – registered Lifting Machinery Inspectors and Lift Inspectors to conduct these independent inspections and tests during construction, commissioning and operation to maintain high levels of Health and Safety on site and to discharge owner’s obligation under SA legislation.

Operation and Maintenance Services

Obelisk has specifically trained Wind Turbine Service Technicians and offers Operation and Maintenance support services in South Africa. Obelisk’s teams support OEM teams during the delivery of their Warranty and Service Plans, as a credible local service provider.

Our team of mechanical and electrical technicians are currently active on a number of operational wind farms.

Blade and Tower Services (with Altitec South Africa) Obelisk has joined forces with Altitec Limited by founding Altitec South Africa, who has together 10 years’ experience inspecting and repairing rotor blades in Germany, UK and Ireland.  Altitec South Africa has trained South African Rope Access Technicians to work to Altitec’s international standards and certification. The blade and tower services include:

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Rotor Blade Inspections based on the Principle for Monitoring the Condition Based Maintenance of Wind Turbines 2007 of the German Wind Energy Association (BWE)

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Composite rotor blade repairs, working to the latest repair standards, issued by Germanischer Lloyd

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Cleaning of Rotor Blades with low impact, biodegradable cleaning agents

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Wind turbine towers and corrosion protection and repairs

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Distribution and Service of Actsafe ascenders

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Distribution, Service and Training of Käufer Access Platforms

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Rotor Blade Service Technician Training with Altitec Academy

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