I played with it - it's not really for load calcs.
Hot 2000 is used to simulate energy consumption and calculate the canadian energuide rating of houses.
General public's attitude towards our energy predicament: "I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"