What is the difference between Primary Requirements allocated to Demands and Transformation Output by Fuel ? It is confusing me because the latter gives me a production of 200 TWh (which I assume is my total annual generation) while the Primary requirements allocated to Demand shows that demand uses 750 TWh of generation which exceeds what I have listed for that year (200 TWh). Can you please explain what the difference so I can get a better idea of how to analyze my results? Thank you !