Why low power design techniques crucial for chip design?

Rich results on Google's SERP when searching for "Low power design techniques"

Power consumption is a crucial factor in any VLSI design. The device and gate length has shrunk to nanometers due to increasing transistor counts and speed of operation. Thus low power design techniques becomes a crucial factor. The modern world surrounded by sophisticated gadgets and, without these gadgets performing day to day tasks is unimaginable. … Read more