Using the meter provided in the Home Energy Toolkit available from libraries I calculated the amount of energy I used to make a small loaf of bread in my bread maker. During the 3 hours and 30 minutes it takes from start to finish the meter recorded that I used 0.3246 killowatt hours of energy which cost 65 cents. As it was a sunny day that energy came from our photovoltaic system and cost me more in terms of feed in tarriff. But then that is not our primary goal. Check this video about the toolkit to find out more.