With regard to the alarming concern that has been raised about the impact of loadshedding on the ability of public healthcare facilities to provide critical care to the most vulnerable, what (a) is the percentage of public healthcare facilities in each province that has alternative electricity sources, such as generators, to assist during loadshedding and (b) urgent steps has his department taken to (i) address the problem and (ii) ensure that vital and critical life-saving services are not interrupted by electricity outages?