It still happens to me. When I overlook something, I often come to kick myself and tell myself to look under my nose first -- again. I do support review of idea as early as possible. It often saves a lot of time, headaches and 'ego' later on.

Thank you for another example. Though I think in this chicken coop case, using chicken poo and biomass may prove more profitable (ie. produce more money) than to try to produce more electricity.

How much methane comes out with exhaust air?