In recent years there has been some interest in capturing energy from footfall to generate electricity. For example during the 2012 London Olympics the exit/entrance to the closest underground station had a a system fitted which used pizoelectric tiles embedded in the floor to generate electricity. As the people walk across them a small amount of electrical energy is generated. The amount of energy captured is dependent on the number of people that pass across the tiles. A similar kind of system was installed at a couple of the busiest JR stations in Tokyo. In that system each person generates about 0.1 watts of power. If such a system were installed at international airports how much power might be generated in a year? The graph below shows the top ten busiest airports in the world in 2013, based on data from Airports Council International.
All the above airports have about sixty million people or more passing through each year that's about six million watts i.e. 6 MW, using the figures for the JR train stations assuming it is possible to capture all the power generated. To put this in perspective: a modern large wind turbine might generate around 3 or 4 MW per year depending on size and average wind speed. So it is not irrelevant but by itself it only provides a small part of the airports power needs and the numbers above are a best case approximation, the actual number might be a small fraction of this.
This blog includes:
Scripts mainly in Python with a few in R covering NLP, Pandas, Matplotlib and others. See the home page for links to some of the scripts. Also includes some explanations of basic data science terminology.