Electricity crisis
However, you can get shops closed early by taking a simple measure. At least 70 countries in the world use it. That is day light saving. They save day light by advancing the clock time 1-2 hours during the summer when the day is longer. In this way people start their day early, leave office early and go to bed early. So power demand reduces.
In case of Bangladesh, changing clock time may create misunderstanding. But adjusting the office time may work well. In the winter when sun rises at 7:00am, people go to office at 9:00am. Now when the sun rises at 5:00, they can easily go to office at 7 or 7.30am. In this way, shops will be ultimately closed within 7:00-8:00pm. No official order will be needed, as people will have enough time to go for shopping during daytime if office closes at 3.30 or 4:00 pm.
It seems to me an effective measure for good management of the power crisis.