ENERGY INTENSITY / OPTIMIZATION

[Kam999]

Hi,

Can anybody guide me in calculating Energy Intensity or Energy index of a refinery , actually our operation is consist of 3 main processes ,
1. Exploration / production
2. Extraction / Conditioning of Crude
3. Refining

our site wide energy sources are Coke , Refinery Gases, Natural Gas ..... Steam & Power

If anybody know of any website regarding EI calculations and Key Parameter for performance monitoring w.r.t. Energy Consumption, so please let me know.

Thans

Ehti ( Chemical )