Compressed air is used in machines like forklift trucks, machines for pumping water etc. In the late 19th century in Europe, compressed air was used to shunt mail (letters) across the cities via tubes, this was known as 'pneumatic mail'.
Hope this can be standardized and tested for regular use, if it is cost-effective and safe, homes with 2-3 floors can use it.
You can find many innovators here. An entrepreneur, has recently come out with sanitary pads made through some innovation, and out of paper. This is much cheaper than the other ones available in the market. Coimbatore is also home to a huge number of ancillary industries, making products for a huge number of industrial organizations, a huge number of which belong to the textile industry and auto ancillary group.
The innovative life under discussion will soon come up for use at homes, and the cost will progressively come down, when the number of units sold increases exponentially. Entrepreneurship is in the DNA of people of Coimbatore city.
Please understand this. To develop air pressure in the compressor we need to have electricity. The motor has to run to fill the compressed air in the tank. Nothing will work without electricity.
No life without Sun
Indian engineers and scientists are no way less than the engineers and scientists of other countries. If proper encouragement and infrastructure are available then can do wonders and they are second to none in this aspect.