Computers use a lot of energy (that 1000 watt power supply). Consider choosing more environmentally friendly options. Use a lower level language like c instead of python or JavaScript for a program that will be run by many people and machines. An order of magnitude or two of energy savings is possible. Use and build command line interfaces instead of conversational interfaces. Google recently said as to why they built TPUs, "If we considered a scenario where people use Google voice search for just three minutes a day and we ran deep neural nets for our speech recognition system on the processing units we were using, we would have had to double the number of Google data centers!". Avoid that shiny new framework that makes older laptop fans run at full blast. Just because you don't see the smoke doesn't mean that your programs aren't burning a ton of fossil fuels.
