With the current situation of load shedding in South Africa and the promise of at least 5 more years of it, we talk to Mark Gander. 
Mark owns Union Power, a company in dealing with the current crisis we have in. If you want to have a better understanding of inverters, batteries and solar panels and to understand what you require, here is a "Electricity for Dummies" guide. Enjoy!

https://www.facebook.com/unionpowerenergy
https://www.unionpower.co.za/