Dear All

Our Project have CHP (2 CNG Generator 500Kw with VAM Chillier 100TR)

what is rate we use for BASE Case and Design Case

For Design case we use the Fuel(CNG) cost invested to run a Generator to create Electricity

Which rate can we use for Base case

as per LEED Reference guide the Back up energy or Electricity cost may be considered as base case cost but I have a doubt in that base case cost arriving

1.we use diesel generator for Electricity back up can we arrive the electrical cost consumption using the specific fuel consumption from catalogue

But the cost of electricity is varying for both a cases because of the Specific fuel consumption of CNG Generator, Diesel Generator.

Can we take this advantage IN energy Simulation

As per this energy rates variation we get 20 - 25% saving can we claim this saving as a benefit of CHP.

is it acceptable manner