Government of Pakistan and private sector should look upon two more measures to ease up pressure on the electricity.
That is neck tie and coats / blazers in offices in summer.
Since neck tie tend to tie around the person's neck, it greatly increases persons requirement for more air and space.
So is the case with the coats and blazers, which when worn in the summer will make the person feel warm and would increase the requirement to keep in cool / air conditioned environment.
The dress code for summer should be halfsleeves shirts, with open neck button to ease up the summer heat.
Kurta shalwar can be a great alternate as it allows fair enough air around the body and dress.