I think the problem is 1) our power is damn expensive - we have some world most expensive power for countries with low income 2) enviroment - we mostly live in tropics without need of heating or ACs 3) we don't have huge minning and manufacturing that really consume power.
The issue non 1) price - calls for policy experimentation - like we are doing with off-peak power - of course the IPPS agreement that gurantee power producers certain prices make it impossible to do this in any big scale. If we reduce prices - and people start cooking githeri with electricity instead of firewoood that will step in the right direction - right now it doesn't make sense.
The issue no 2) - is good - nobody should care if we use 1000 or 10,000mw - we just need sufficient power - so gov should continue with supply side of issues - universal electricity coverage - street lights - lighting all roads - we don't need to have ACs running for the sake of it. Obviously once we move and tame 2/3 of the country that is inhospitable without electricity - talking of isiolos, turkanas,lamus, malindis - we may find more use for power in households beyond watching TV and lighting bulbs.
The issue no 3 will take time - and this policy of allowing manufacturers cheap power - is a step in the right direction - once we have huge steel making, cement making, minning and such industries - like in south africa - we can easily consume more power.