Generators, solar power and other alternative energy sources are once again very hot, hot topics with the critical downward spiral Escom seems to be trapped it.
An alarming reality is that a solution is not eminent and a dim future of rolling blackouts is becoming more imminent by the day, you are well advised to speak to a reputable electrical expert ASAP so that you and your business will be prepared and to avoid losses due to lack of electricity.
How not to select the wrong generator set (genset) for your application – see article at: https://electrical-engineering-portal.com/select-generator-set
Generator set is maybe the most expensive part you can find in a substation. Therefore, many factors must be considered when determining the proper size or electrical rating of an electrical power generator set.
If wrong size or rate is selected and delivered on site, the only thing you can do is to sit and cry.
Source: EEP – Electrical Engineering Portal
There are honest experts out there that will be able to give you the best advice, be prepared, do not wait until you have not power.