Loadshedding vodacom immediately off.

As a loyal vodacom customer for many years we are starting to think it might be time to change service providers. With the current loadshedding we are experiencing,as soon as the power goes off so does vodacom. ( keeping in mind that mtn and cell c networks don't ) Not just is it inconvenient but a serious security risk as you cannot phone out should something happen. This is a huge issue as our entire household are vodacom subscribers and all our phones will have no service during loadshedding. Family who are Mtn and Cell C subscribers however do not have this problem. Do we also rather need to move?