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City of St. Louis Park Greenhouse Gas Assessment City Operations, 2005 to 2015 heating for birds. The Parks Dept. adding field lighting on two soccer fields and one softball field, which are used nightly from mid -May until the late fall. Changes that decreased electricity consumption include a lighting upgrade and a new air conditioning unit for the Police Dept. that was installed in 2008, and improvements to City Hall. Looking at change from 2015 compared to 2005, Table 2 shows that emissions for buildings and facilities in 2015 were 13% lower, primarily due to the fact that Xcel's emission factor was 22% lower than in 2005. Streetlights and signals: Table 1 shows that electricity consumption was 30% higher in 2015 than in 2005 for streetlights and signals. According to City staff, the increase in consumption is due to the addition of street lighting in new developments. Since 2010, the City has been replacing fixtures with LED bulbs. As for the signal systems, the City converted signal bulbs and pedestrian walk/do not walk lights to LED in 2006-2007. As such, all new signal systems installed after 2007 are completely LED. Consumption would have been much higher had the City not used LED technology. Potable water and sanitary sewers: The wells, pumps, reservoirs, and the Water Treatment Plant facilities necessary to produce potable water comprise one of the largest single consumer category of energy (predominantly electricity) and source of GHG emissions. The category alone accounts for about a quarter of the total GHG emissions from City operations (Figure 1). Table 1 shows that production figures for potable water have declined since 2005 (3% lower in 2010 and 10% lower by 2015). When compared on a per -capita basis, the reductions are even more pronounced (5% by 2010 and 18% by 2015). The associated GHG emissions have been declining over the 3 study years at even greater rate, primarily due to Xcel's declining emission factor and electricity being the dominant energy source. Compared to 2005, emissions in 2010 were 10% lower and those in 2015 were 31 % lower. When comparing energy efficiency for both electricity and natural gas consumption (gallons produced per thousand British thermal units, or kBtu), efficiency dropped slightly in 2010 compared to 2005 but then climbed such that energy efficiency was 4% higher in 2015 compared to 2005. The City's system of pumps and lift stations for the sanitary sewer system result in a very small amount of GHG emissions, only 2% of the City's total emissions. Transportation: City transportation includes the 3 sub -categories described below. However, only the emissions from first subsection, Public Works, are classified as Scope 1 emissions and counted with the other Scope 1 and 2 emissions. The other 2 categories are Scope 3 emissions, which are reported separately on Table 2. Liquid fuels consumption: Table 1 lists the consumption of fuel controlled by the Public Works Department, which include consumption by the Parks, Police, and Fire departments. Consumption increased in 2010 compared to 2005 (12%) but then decreased such that consumption in 2015 was slightly below the 2005 level (2%). Table 2 shows that the associated GHG emissions have increased in similar manner-5% larger in 2010 and 6% smaller than 2005 in 2015. The use of alternative fuels (E-85) since 2005 have helped to reduce emissions. ORANGE ENVIRONMENTAL