Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I think using a Boiler:HotWater and setting the FuelType to OtherFuel1 would be a reasonable approach. As far as a source for the emission factors needed in the FuelFactor object you could use:
http://www.epa.gov/climateleadership/documents/emission-factors.pdf
But the problem is that these only reflect the carbon released when burning biomass and not the carbon absorbed. Of course unless the biomass is gathered on site a significant amount of indirect emissions may occur for processing and transporting. You might want to look at this paper:
CO2e Emissions from Biomass and Biofuels
It is a difficult question that requires some significant analysis for the particular type of biomass and location. You might want to ask the vendor who will be supplying the biomass.
