Jmad

The use of Yakhchal style cooling systems alongside water cooling to reduce amount of water needed to keep AI computers cool, as they are underground, they could be built under solar panel fields for easy and efficient energy transfer with minimal losses.

A freestanding carpet that uses the pressure of people walking on it to produce energy, potentially using air sacks under the carpet to release air when stepped on to blow a small turbine producing small amounts of energy. The idea for the mechanism is rough and not set in stone, so if you have a more suitable idea as to how it could work, i would appreciate it. Having air sacks underneath would benefit as they'd provide a soft floor too.