In Praise of Poop 3: San Antonio Harnesses Power from Sewage Methane
For this the third entry in the annals of excellent excrement (after cow and E. coli poop), we will have to travel deep down into the heart of Texas…and then even farther down into the sewers of San Antonio. So don your rubber body suit, gas mask, and sense of humor, for sewage is no longer just stuff to be dumped and forgotten.
No, San Antonio is out to prove that sewage, and specifically the methane that it gives off oh so (i.e., too) naturally without any bother or cost to us, can be used as a source of alternative fuel…I mean it is natural gas, after all.
In an Associated Press story reported by CNN on its website on September 11, the San Antonio Water System plans to capture methane gas produced by the 140,000 tons of sewage it handles (sorry…bad word choice there) every year.1 Officials estimate that they will be able to capture as much as 900,000 cubic feet of methane annually from this big old pile of people poop.
But what do you do with nearly a million tons of methane? If you are a high school kid, you might get a matchbook and invite some friends with a camera for a rip-roaring laugh. If you are more mature and entrepreneurial officials in San Antonio, however, you sell that happy-crappy gas to Ameresco Inc., an energy-services company based in Massachusetts, for use as a fuel source.








I think the strongest point you make with your last post is the importance of living in a way that honors your own health and wellbeing, not just the Earth’s. This is something that I’ve learned to consider the hard way, through the tribulations of the Sust Enable project (during which I ran up against my own physical limits of hunger, sleeplessness, and stress). I completely agree with that: respect for yourself, as a living being with needs, comes first in making a healthy approach toward respecting the Earth and other living systems.
