Demand side management for water heating installations in South African commercial buildings

2001 ◽  
Vol 25 (4) ◽  
pp. 291-317 ◽  
Author(s):  
P. G. Rousseau ◽  
J. P. Strauss ◽  
G. P. Greyvenstein
Keyword(s):  
South African ◽  
Demand Side Management ◽  
Commercial Buildings ◽  
Demand Side ◽  
Water Heating

Demand-Side Management through thermal efficiency in South African houses

1999 ◽  
Vol 29 (3) ◽  
pp. 229-239 ◽  
Author(s):  
C Lombard ◽  
E.H Mathews ◽  
M Kleingeld
Keyword(s):  
South African ◽  
Thermal Efficiency ◽  
Demand Side Management ◽  
Demand Side

A simple demand-side management solution for a typical compressed-air system at a South African gold mine

2012 ◽  
Vol 23 (2) ◽  
pp. 20-29 ◽  
Author(s):  
Leon Liebenberg ◽  
Douglas Velleman ◽  
Walter Booysen
Keyword(s):  
South African ◽  
Energy Savings ◽  
Demand Side Management ◽  
Compressed Air ◽  
Gold Mine ◽  
Demand Side ◽  
Peak Period ◽  
Air System ◽  
South African Gold ◽  
Evening Peak

Once designed, mine compressed-air systems tend to operate at peak levels throughout the life of the mine, despite there being significant periods when this air quantity is not required. This is mainly due to lack of appropriate compressor controls. Consequently, such compressed-air systems are inefficient and wasteful. A compressed-air system at a South African gold mine was retrofitted with an automatic compressor control system featuring compressor cascading and pressure bandwidth control. The goal was to implement a simple demand-side management (DSM) strategy to afford meaningful electrical energy savings. The automatic control strategy realised a saving of 1.25 MW (on a baseline of 7.22 MW) during Eskom’s evening peak demand window. This represents a reduction of 17.3% in electrical power consumption during the evening peak period, and savings of nearly R2.9 million per year.

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