You can insulate it with a higher R factor blanket, but to be honest tank style heaters aren't efficient in the first place, if you want to consider high efficiency water heaters look at some of the options currently available.
energy is never lost or reduced. energy can only be transferred. this can be possible by fiction or an outside force acting upon it.
by saving energy in homes etc.......
Guard Cells
Thicker lagging, cooler water, warmer position for the tank.
Efficiency of the machine is reduced due to loss of energy by friction.
This granules...prevents water loss and energy loss. It is a water repellent.
Yes, you could possibly reduce load sheeding if you take time to cut back on energy loss. You can encourage your customers to cut back during peak demand times.
no
by saving energy in homes etc.......
If the process of water loss (transpiration) is reduced in plants, the process of water absorption will also be reduced. This happens to maintain an equillebrium in the plant cells.
many plants developed a wazy surface cuticle to reduce water loss
it loss enery every part