National Capital Region Greenhouse Gas Emissions Inventory Update Presented by Madison Wagner WRTC...
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Transcript of National Capital Region Greenhouse Gas Emissions Inventory Update Presented by Madison Wagner WRTC...
National Capital Region Greenhouse Gas Emissions
Inventory Update
Presented by Madison Wagner
WRTCOctober 29, 2015
WRTC 10/29/15 2
Background
• Current inventory measures status of 2012 goal • Desired outcome: 10% below business-as-usual levels by 2012• Goal: to create a standardized regional approach to tracking GHG
emissions • Continues NVRC work• Updates COG 2008 Climate Change Report
http://www.mwcog.org/uploads/pub-documents/zldXXg20081203113034.pdf
National Capital Region Climate Change Report 2008
WRTC 10/29/15 3
Tasks• Define a consistent methodology for
collecting/analyzing 2012 GHG inventory data– ICLEI Community Protocol– Use same methodology to back-cast 2005 inventory
• Calculate the region’s 2005 and 2012 emissions using the ICLEI ClearPath tool– Replaces ICLEI beta spreadsheet tool
• Break out 2005 and 2012 inventories by locality
• Upload regional GHG inventory to the international Carbon Disclosure Project (CDP) reporting platform
WRTC 10/29/15 4
Methodology• Data collected and analyzed by COG staff– Regional WW/DW demographic data (Round 8.3
projections)– WWTP nitrogen load and concentration data
• Data collected from regional DW/WW treatment and pumping facilities
WRTC 10/29/15 5
Regional DataIndicator 2005 2012 Percent Change
Population 4,738,900 5,261,974 +9.9%
Households 1,879,016 2,010,575 +6.5%
Employment 2,693,401 2,789,269 +3.4%
Electricity Use 58,924,515,193 kWh
60,175,521,843 kWh
+2.1%
Stationary Fuel Use 471,798,890 gallons
319,917,118 gallons
-32.2%
Natural Gas Use 1,589,317,362 therms
1,453,056,576 therms
-8.6%
Annual VMT 41,833,286,780 miles
43,945,174,893 miles
+4.8%
WRTC 10/29/15 6
ResultsNational Capital Region Greenhouse Gas Emissions
(metric tons CO2 equivalent)
2005 2012 Percent Change
NCR MT CO2e 69,171,422 68,857,146 -0.5%
NCR Population 4,738,900 5,261,974 +9.9%
NCR MT CO2e per Capita 14.60 13.09 -10.3%
WRTC 10/29/15 7
Water-Related Emissions• Emissions associated with DW/WW
treatment and pumping are included in overall electricity and natural gas emissions– Uncertainty in sector breakdown
• Nitrogen and methane emissions from WWTPs– Calculated separately– Includes industrial and domestic
wastewater emissions
WRTC 10/29/15 8
Off-Road Combustion3.1%
Mobile Transporta-
tion32.0%
Commercial Airline4.2%
Electricity38.2%
RCI Fuel18.5%
Solid Waste Treatment1.2%
Wastewater Treatment0.1%
HFCs2.8%
NCR Greenhouse Gas Emissions 2005 by Activity - MT CO2e
Off-Road Combustion3.5%
Mobile Trans-
portation33.5%
Commercial Airline3.9%
Electricity39.6%
RCI Fuel14.5%
Solid Waste Treatment1.2%
Wastewater Treatment0.1%
HFCs3.7%
NCR Greenhouse Gas Emissions 2012 by Activity - MTCO2e
Emissions by Activity[Ref. detailed Inventory Table]
2005: 69,171,422 MT CO2e 2012: 68,857,146 MT CO2e
WRTC 10/29/15 9
Electricity
NCR Electricity Use (in kWh)
Source 2005 2012 Percent Change
Residential Electricity 19,734,181,996 20,083,333,241 +1.7%
Commercial Electricity 34,724,253,637 33,677,438,426 -3.1%
Industrial Electricity 4,466,079,560 6,414,750,176 +30.4%
Total 58,924,515,193 60,175,521,843 +2.1%
Residential33%
Commercial56%
Industrial11%
NCR 2012 Electricity Use by Sector
WW & DW % of gross electrical use not defined yet; Part of Comm. or Industrial? – TBD
WRTC 10/29/15 10
Findings• The National Capital Region
met its first target
• Electricity generation factors and stationary fuel combustion switches were the primary contributors to the region’s meeting the 2012 target
• Passenger vehicles and commercial electricity will be important reduction targets for future
WRTC 10/29/15 11
Next Steps• Determine electricity use in DW/WW sector
– Break out from general electricity use– Request data from local utilities to determine commercial vs. industrial classification– Consider calculating DW/WW sector emissions from national figures
• Identify additional opportunities for efficiency improvements, renewable energy production– ex. DC Water’s Digester; combined heat & power; green buildings; green fleets – Nitrogen-removal emissions tradeoff– Determine if/what sort of stormwater efficiencies might be quantifiable
• Identify opportunities to address conservation vs. cost recovery concerns– MSWG strategies[Ref. A. Campbell’s presentation & requestfor WRTC input on Water Sector items]
WRTC 10/29/15 12
Madison WagnerClimate and Energy Intern
Department of Environmental [email protected]