Wind towers are not really suitable for suburban areas - so I've never bothered to check them out.
BUT there is a water and power saving measure I did install.
For the price of three de-commissioned one-cent pieces (inserted into the pipe that holds the shower-head to the wall in the main bathroom, the main bedroom's en-suite and the student bathroom) three coins that I drilled to make three 'flow limiters', I am doing my bit to cut back on our demand for coal-base and power and save water every time sombody takes a shower.
PLUS I put a tiny four-minute 'hour-glass' on each shower wall to remind the seven folk who live here that daily showering consumes power and precuous water at a prodigius rate.
But mercifully limited by our three one-cent 'flow limiters' I thunk up all by myself and without a Federal Subsidy! (vbg!)
As a further recycling measure, the shower water plus the dish-washer and clothes-washer water is harvested by a 'grey-water' harvesting and irrigation syetem I designed and installled that feeds into the five-tank rainwater storage and irrigation system that I was working on today by way of connecting our new Tank Five to the other tanks and irrigation pump.
So all in all I am very happy with what we are doing here and especially with how well the new solar hot water and solar power systems work - almost without human supervision once the initial investment is made and rapidly forgotten like the pains of childbirth are soon forgotten as a new phase of life kicks in amid joy and gratitude.
All we have to do is vote out the little kid-cager and life will be so good I'll need to employ somebody to help me to enjoy it!