(1) Whether any concessions have been awarded for rolling out solar heating systems; if not, why not; if so, (a) what are the names of the concessionaires, (b) what is the duration of the maintenance contracts and (c) which areas will be serviced; (2) whether any of the concessionaires have failed in delivering on their agreements; if not, how was this conclusion reached; if so, which concessionaires; (3) whether her department has taken any steps against concessionaires failing to deliver on their agreements; if not, why not; if so, what are the relevant details; (4) what (a) reporting mechanisms are being used to manage maintenance and (b) is the cost per unit paid by local authorities from the electricity grant?