(a) How are the gantries along the e-toll routes being electrified when load shedding takes place, (b) how does load shedding affect the e-toll system, (c) what measures have been put in place to circumvent load shedding and (d) Friday, 14 August 2015 1073 INTERNAL QUESTION PAPER: NATIONAL ASSEMBLY NO 30 - 2015 what has been the costs in this regard in each month since the e-tolls came into operation on 4 February 2011?