News
Author: Corporate Communication & Marketing / Korporatiewe Kommunikasie & Bemarking [Alec Basson]
Published: 10/03/2021
We still rely heavily on coal to generate electricity, but with an ageing fleet of coal-fired power plants we should perhaps start to tap into our abundant offshore wind energy resources to help address future electricity shortages.
“If we were to install wind turbines at different depths off the KwaZulu-Natal and Western Cape coast, they could potentially supply approximately 15% and 800% of South Africa's annual electricity demand," say Gordon Rae and Dr Gareth Erfort from the Department of Mechanical and Mechatronic Engineering at Stellenbosch University.
They used geographic information system methods to do the first comprehensive assessment of South Africa's offshore wind energy resources and to identify the most suitable regions for the development of wind farms. Their assessment included marine protected areas sourced from the World Database of Protected Areas, which is the most comprehensive database on terrestrial and marine protected areas. The researchers say they included marine protected areas in the study to create what they call “no-go zones". “It was important to include these no-go zones as they illustrated to us what portion of the exclusive economic zone would be inaccessible to offshore wind energy from an environmental perspective."