Hello, I have a building with a district system for cooling, heating and DHW. As ASHRAE 90.1 stated I have used the district system for the Heating and the cooling in Proposed and Baseline Model. 

My question is how to fill the LEED Minimum Perfomance Calculator... For the utility rates, I hvae the real ones that I have used in the two models 

My problem is in the GHG emissions. I have a Green District System in the City, can I use this to have savings in my building? 

The district system are using Biomas, VRSU (Waste to Energy) for the 92% of the thermal energy produced (and 4% o electricty and 4% of Natural Gas).  I can calculate the real emissions factor for a kWh thermal produced: 0,04 kg CO2 for kWh.

The questions is: Can I put my real emissions factor (0,04 kg CO2 for kWh thermal) in the proposed and a tradiotional emissions factor in the Baseline (for exemple a Gas Natural plant 0,252 kgCO2 for kWh thermal)? Or I need to use the same GHG factor for the two models?