If are generally using a lesser generator for instance 1000 watt model, which in most cases is more practical, you'd be portable 150kw diesel Generator 150kw diesel generator using 6.2 gallons every 5-8 hours depending on the load. This comes to $5 every 8 hours ,or $15 for every 24 hour period.
And lastly, urban farming can be also adopted. This is a technology newly followed in Japan [ I don't know much about this] using this, the environment where the farm is positioned can be placed cool, thus minimizing the application of electricity.
A good downloadable manual will provide all the instructions requisite for a reputable and well made power. It will also explain how to wire in the system assure each time the ignition is witched on an ongoing is passed through the actual contained your past HHO builder. The water reacts with the catalyst and hydrogen and oxygen fizz on the surface.