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The sugar industry can contribute 700MW of electricity to the grid

The South African sugar industry can contribute approximately 700 MW of electricity capacity to the national grid through cogeneration projects, with an existing generation capacity of about 245 MW using bagasse [Winkler, 2006; SASA, 2016]. References South African Sugar Association (2016) ‘South African Sugar Industry: 2016’ Winkler, H. (ed) (2006) ‘Energy Policies for Sustainable Development […]


Recent developments of off-grid renewable energy systems

Recent developments of off-grid renewable energy systems locally were seen for the residential sector, but more recently it played an important role for the electrification of rural communities. For further reading click here.  


Wheeling of electricity on the Eskom network

Currently Eskom is “wheeling” an approximate equivalent of 1.3% of the electricity generated across the distribution and transmission network. This means that an electricity consumer uses the Eskom network to purchase electricity from another entity. Wheeling


Hydro power used to play an important role in the provision of energy generation

Small-scale hydropower used to play a very important role in the provision of energy to urban and rural areas of South Africa. The most predominant water resources suitable for micro hydro power generation are situated in Kwazulu-Natal and the Eastern Cape. http://renewedprojects.co.za/hydro-power/ Figure: Run-of-the-river scheme [Practical action, n.y]    


Decrease in electricity demand

A significant decrease in the electricity demand of 2,5% from 2014 to 2016 can be attributed to slow down of the economy, successful implementation of demand side management initiatives and a shift towards self generation by end users. The total decrease in the electricity demand from 2011 to 2016 are now standing at 5,5%. This […]


Paper: Assessment approach for the refurbishment of concrete overhead power lines

Paper: Assessment approach for the refurbishment of concrete overhead power lines Rudí Nel, Pr.Eng.   Abstract– After conducting an external audit on the powerline concerned, it was evident that significant refurbishment activities on the concrete overhead power line structures were required to ensure the serviceability of the powerline as a whole. These pylons have long […]


Expected payback periods for heat pumps and solar geysers

The electricity tariff increase in the past 5 years had a visible effect on the payback period of heat pumps and solar geysers, such that we can expect a 1.5-2 year return on investment (ROI) for heat pumps and a 3.5-3.7 year return on investment for solar geysers. An investigation undertaken by the M-Tech Industrial (PTY) […]

solar geyser

Greenbuilding design to save energy

When looking at decreasing your electricity in your newly build home you are also contributing towards a “greener” building. According to the US-based published report by McGraw Hill Construction, South Africa is the fastest growing green building country in the world. There’s a vast variety of building construction techniques for a more efficient design and […]