2005 eGRID Subregion Resource Mix (RFCW) Hydro 1%
Nuclear 22%
Wind and Solar 0%
Biomass 0% Other fossil fuels 1% Gas 3%
Oil 0%
Coal 73%
Figure 3. Fuel Mix of Electricity Consumed by University of Pittsburgh [15] Imported steam is a common energy source for campuses in cities with centralized steam production [4]. The amount of steam used by individual buildings was obtained from UPitt’s Facilities Management Department. The amount of steam was recorded in pounds and converted to energy units [6]. The total steam consumption was calculated to be 636,000 million British thermal units (MMBtu). By default, the CA‐CP calculator assumes a fuel mix of 50% natural gas and 50% distillate oil for steam production. However, until July 2009, Bellefield Boiler Plant used both coal and natural gas to produce steam, and so distillate oil has been replaced with coal for the fuel mix used to produce steam, given in the CA‐CP calculator. By using the exact fuel mix of the boiler plant obtained for the study period, total GHG emissions were found to be 55,100 MT CO2E. • •
Purchased electricity: 198,000,000 kWh Purchased steam: 636,000 MMBtu
4.3.
Scope 3 Emissions
Sources that emit GHGs but that are indirectly related to UPitt are covered under scope 3. For example, UPitt contracts solid waste management, but emissions coming solid waste are the responsibility of UPitt. Another example is directly financed air travel. 4.3.1. Directly Financed Outsourced Travel UPitt finances different modes of transportation for its operations which include air travel, rental car, bus, and personal mileage reimbursement. The different modes of financed travel are recorded as a single entry into the reimbursement statement that also includes items such as hotels, per diem, and meals. UPitt’s current accounting system does not permit an analysis of total travel distances. Cost information was obtained from UPitt’s Transportation Services regarding the amount spent towards air travel by faculty, staff and the Athletic Department. For outsourced bus transportation, total distance travelled was given to be 440,000 miles. 14
