Little-known tax incentives boost business case for renewable energy

South Africa’s government, energy regulator and Eskom have often been criticised for obstructing the introduction of distributed, small-scale embedded generation (SSEG) which would help businesses to cut costs and ensure the stability of their power supply during load shedding. But, in fact, there are significant and far-sighted tax breaks put in place by National Treasury […]

Winding resistance testing of motors

Winding resistance measurements detect various faults in motors and transformers: shorted turns, loose connections, broken strands and malfunctioning tap changer mechanisms. Winding resistance measurements detect problems in motors which other tests may not find. These problems include partial or fully shorted coils, poor crimps or connections, imbalance between phases (improper turns on phases) and incorrect […]

Integrating renewable energy sources into smart grids – Part three

There is global momentum to diversify electricity generation sources for economic, environmental and security reasons. Distributed generation (DG) enables more companies to enter the electricity market stimulating competition, encourages the development of renewable energy (RE) and limits the impact of events such as cyber-attacks. However, conventional electricity distribution networks are poorly matched to the needs […]

Locally made inverters for new solar farms

RWW Engineering, a South African manufacturer of electrical equipment for industry and utilities, has been appointed the South African manufacturer of inverters for Spanish company Green Power Technologies. The inverters will be used at three 75 MW solar PV farms which are being built as part of Round 4 of South Africa’s Renewable Energy Independent […]

Integrating renewable energy sources into smart grids – Part two

There is global momentum to diversify electricity generation sources for economic, environmental and security reasons. Distributed generation (DG) enables more companies to enter the electricity market stimulating competition, encourages the development of renewable energy (RE) and limits the impact of events such as cyber-attacks. However, conventional electricity distribution networks are poorly matched to the needs […]