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HomeMy WebLinkAboutBaseline Greenhouse Data• • • • • • • • City of • • Oak Park Heights • • • • • • � • • • • • '. • • • • • • • • • • • Report • • Baseline Greenhouse Gas Emissions Inventory and • Management Framework • City of Oak Park Heights • • November 30, 2010 • Project Number 000055-10168-0 • • • Bonestroo • • • • 2335 Highway 36 W • St Paul,MN 55113 • Tel 651-636-4600 Fax 651-636-1311 www.bonestroo.com • • November 30, 2010 4 Bonestroo • • Mr. Eric Johnson City Administrator City of Oak Park Heights • P.O. Box 2007 Oak Park Heights, MN • • Re: Baseline Greenhouse Gas Emission Inventory Project No.: 000055-10168-0 • Dear Mr. Johnson: • • This report documents Bonestroo's development of a baseline greenhouse gas emissions inventory and management framework for the City of Oak Park Heights. This work product is in partial fulfillment of the • terms of the EECBG program grant awarded the City by the State of Minnesota. • We appreciate the opportunity to support the City's sustainability efforts. If you have any questions regarding the report, please do not hesitate to contact us. • Sincerely, • BONESTROO III • • Richard H. Osa, QEP • Associate Environmental Scientist S • Copy: Chris Long, P.E., City Engineer • • • • • • • • • • • • • • s • • • CITY OF OAK PARK HEIGHTS • Table of Contents • S • Table of Contents 1 • BACKGROUND AND INTRODUCTION 2 • Greenhouse Gas Background Information 2 • Inventory Scope 2 • METHODOLOGY 3 Inventory Domain and Structure 3 • Information Sources 3 • Table 1. City Facility and Operations Input Data 3 • Table 2. Residential, Commercial, Institutional, and Industrial Sector Input Data 4 • COMPUTATIONS 5 • BASELINE INVENTORY RESULTS 6 • Table 3. Sector-Level Baseline 2008 Greenhouse Gas Emission Inventory 6 • City Facilities&Operations 6 • Table 4. City Facility&Operations Baseline 2008 Greenhouse Gas Emissions Summary 7 • Residential Sector 8 Commercial Sector 8 Table 5. Residential Baseline 2008 Greenhouse Gas Emissions Summary 9 Table 6. Commercial Sector Baseline 2008 Greenhouse Gas Emissions 9 Institutional Sector 9 Table 7. Institutional Sector Baseline 2008 Greenhouse Gas Emissions 10 Industrial Sector 10 Table 8. Industrial Sector Baseline 2008 Greenhouse Gas Emissions 10 • GREENHOUSE GAS MANAGEMENT FRAMEWORK 11 • Findings 11 • Greenhouse gas emissions management framework 11 • Appendix A A-0 • • • • • • I • City of Oak Park Heights Page 1 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • • • • CITY OF OAK PARK HEIGHTS • BACKGROUND AND INTRODUCTION • • On March 25, 2008, the City of Oak Park Heights City Council adopted a resolution for the City to • participate in the U.S. Mayor's Climate Protection Agreement. Since that time, the City has • embarked on a number of initiatives designed to control its energy use—consequently reducing • the emission of greenhouse gases associated with global climate change. • The City applied for, and was granted, State of Minnesota funding for an energy efficiency • program. One element of that program was the development of a baseline greenhouse gas • emissions inventory and management framework. This report documents Bonestroo's efforts to quantify the greenhouse gas emissions associated with City activities, as well as those from the • community as a whole. • GREENHOUSE GAS BACKGROUND INFORMATION • Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N20) are the principal greenhouse • gases associated with energy generation and fossil fuel combustion. By obtaining information on • the historical energy use, associated greenhouse gas emissions may be accurately estimated. • The convention is to refer to greenhouse gases emitted onsite as"Scope 1"emissions. An • example of Scope 1 emissions is CO2 from combustion of natural gas in a building's furnace. • Offsite emissions associated with onsite energy use are referred to as"Scope 2"emissions. These are typically from fuel or electricity generation at an offsite plant, and transmitted to the subject facility. Opportunities for managing greenhouse gas emissions from City facilities and operations • are identified. The importance of leveraging the City authority to influence the energy habits of • public and corporate residents is explored, and specific opportunities to reduce greenhouse gas emissions are discussed. • INVENTORY SCOPE • As specified in the City's grant application, this baseline greenhouse gas emissions inventory • spans both emissions from City activities and those from the broader community. It will be • suitable to serve as a guide to development of a climate action plan, as well as a benchmark • against which to gauge the City's progress towards its objectives. • The inventory base year of 2008 corresponds to the year in which the Mayors'Climate Protection • Agreement was adopted by the City, and pre-dates a number of energy efficiency initiatives such as the new, energy efficient, City Hall and improvements to water pumping equipment. Both • Scope 1 and Scope 2 emissions are included. • City sources surveyed included structures (such as City Hall), operations (including pumping associated with the water supply system), and transportation (cars and trucks)—including • contract vehicles such as lawn mowers, snow plows, and solid waste collection trucks. • Community emission sources were categorized as residential, commercial, institutional, and • industrial. To the extent possible, transportation emissions were quantified. • • • City of Oak Park Heights Page 2 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • • • CITY OF OAK PARK HEIGHTS • METHODOLOGY • • • The City of Oak Park Heights greenhouse gas emissions inventory was developed in general • conformance to the Local Governmental Operations Protocol For the Quantification and Reporting • of Greenhouse Gas Emissions Inventories Version 1.1 (LGOP, or"protocol"). That document was • jointly developed by the California Air Resources Board, the California Climate Action Registry, ICLEI– Local Governments for Sustainability, and The Climate Registry. Version 1.1 was released • in May 2010 and is specifically designed to quantify greenhouse gas emissions associated with • municipalities. This section provides details of how the protocol was applied to the City of Oak • Park Heights baseline inventory. • INVENTORY DOMAIN AND STRUCTURE • Oak Park Heights selected the entire City as the inventory domain—both City-owned facilities and • operations, as well as private faculties and activities. Encompassing both public and private sectors provide a holistic view of the community's contribution to greenhouse gas emissions and • will allow governmental representatives and administrators to better develop a climate action • plan. • The City facilities and operations inventory was developed at the most detailed level possible- • generally down to the individual electric and gas meter. In the case of motor vehicle fuel, the • city's 2008 fuel expenditures were divided by the average price for each fuel in Minnesota for 20081. The public sector emission sources were further categorized as structure heating/cooling, • process, or transportation. The private sector was broken down into residential, commercial, • institutional, and industrial categories. In general, a common greenhouse gas emissions • computation method was used within each category, although a number of exceptions were necessary due to data limitations. • INFORMATION SOURCES • The City facility and operations information used to construct the emissions inventory, and their • sources, are listed in the Table 1. • TABLE 1.CITY FACILITY AND OPERATIONS INPUT DATA • Data Element Source Comments • • List of City facilities Chris Long, City Engineer • Natural gas &electric bills, Judy Tetzlaff, OPH, Fuel costs converted to gallons using • fuel purchase records Accounting historical fuel prices • Andrew Kegley, OPH Vehicle fleet specification • Director of Public Works • Contract services Eric Johnson, OPH Included lawn mowing, solid waste Adiminstrator collection, and snow plowing activities • • 'http://www.eia.doe.00v/oil oas/petroleum/data publications/wrap/mogas home paae.html • City of Oak Park Heights Page 3 • Baseline Greenhouse Gas Emissions Inventory .Bonestroo 000055-10168-0 • • i• • • • • CITY OF OAK PARK HEIGHTS • • Residential, commercial, institutional, and industrial data inputs and their sources are presented in Table 2. • • TABLE 2.RESIDENTIAL,COMMERCIAL,INSTITUTIONAL,AND INDUSTRIAL SECTOR INPUT DATA • Data Element Source Comments • Latitude and longitude values • used to establish a radius within Number of residential properties Land View Census the city; program then Software 2000 estimates the number of • households and people in the • 2000 census • Residential natural gas usage PSNC Energy customer • patterns information guide • List of significant commercial, • institutional, and industrial U.S. EPA ECHO online ECHO query executed on • sources database system 9/21/2010 • Area (square footage) of CoStar commercial • commercial properties properties database • Minnesota Correctional Facility • natural gas&electiric utility Brian Pawlak, Physical • statements, fuel purchase records Plant Director • A.S. King Power Plant(Xcel Energy) MPCA Review of MERP Standard U.S. EPA emission Proposal (pg. 35) factors applied to projected fuel • consumption • Met Council scheduled to • Metropolitan Council St. Croix release their GHG inventory Valley WWTP Pending 1/1/2011, in conjuction with • report to state legislature • • Electric grid carbon intensity Xcel Enegy web site Actual 2008 values incorporated in calculations II • Assumed average of two • Community-wide transportation midsize cars per household • • II • City of Oak Park Heights Page 4 • Baseline Greenhouse Gas Emissions Inventory 4 Bonestroo 000055-10168-0 • • • • • • • CITY OF OAK PARK HEIGHTS COMPUTATIONS • •• The Clean Air and Climate Protection ("CACP",Version 1.1, June 2005,Table Release Date 20050320) was used to compute greenhouse gas emissions from the raw input data and • translate those emissions into carbon dioxide equivalent units (CO2e). Where necessary, pre- • processing was performed to convert native format input data into units consistent with the CACP. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • City of Oak Park Heights Page 5 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • • • • CITY OF OAK PARK HEIGHTS • BASELINE INVENTORY RESULTS • • The baseline inventory found total Oak Park Heights 2008 greenhouse gas emissions as • 6,707,692 metric tons of carbon dioxide equivalent. City facilities and operations accounted for • 984 tons CO2e. Over 55% of total community emissions emanated from Xcel Energies'A.S. King • coal-fired power plant. Table 3 summarizes the baseline inventory, by sector. • TABLE 3.SECTOR-LEVEL BASELINE 2008 GREENHOUSE GAS EMISSION INVENTORY • 2008 Annual Greenhouse Gas • Emisssions • tonnes CO2e % of Non- Metric• Emission Source Category Industrial • City Facility &Operations 984 0.03 • Residential Homes &Transportation 17,060 0.59 • • Commercial Sector 1,905,000 65.83 • Institutional Sector 970,730 33.55 • • Non-Industrial Sub-Total 2,893,774 100.00 Industrial Sector(not including WWTP*) 3,813,918 • Total 6,707,692 • *The Metropolitan Council is in the process of quantifying their system's greenhouse gas emissions;the Oak Park Heights inventory includes a placeholder for • insertion of the St.Croix Valley Waste Water Treatment Plant's emissions when they are available. • The sector-level emissions are illustrated in Figure 1. Detailed results for each sector are presented and discussed below. CITY FACILITIES&OPERATIONS • City facilities include public structures such as City Hall and park shelters, as well as support • buildings like the Public Works Garage and pump station equipment shelters. Some of these • structures employ natural gas-fueled furnaces and/or hot water heaters—resulting in onsite (Scope 1) emissions of CO2, CH4, and N20. Operations include functions such as water • distribution system pumping. Lighting—within structures as well as street and area lighting- • represents a large fraction of the City's overall electrical demand, accounting for much of the • City's Scope 2 emissions. Various department tasks utilize motorized transportation, such as police patrols and public works deployments. Fuel combustion in car and truck engines yield • Scope 1 emissions of CO2 and N20. Table 4 provides a breakdown of greenhouse gas emissions • associated with the City's facilities and operations. Results are presented graphically in figure 2. • Emissions resolved to the specific facility level are presented in Appendix A. • City of Oak Park Heights Page 6 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • S • • Figure 1. 2008 Greenhouse Gas Emissions, By Sector III 0 • 4,500,000 -- • 4,000,000 3,813,918 • E 3,500,000 - - • W y ea vo 3,000,000 -_— 4 • s 2,500,000 • w 2 2,000,000 1 905 000 • w .y i 1,500,000 c 970,730 • < 1,000,000 - co 0 • eu 500,000 • 984 17,060 0 - - .__ . --.._T._.._..It" T. _-r • City Residential Commercial Institutional Industrial • Sector • • TABLE 4.CITY FACILITY&OPERATIONS BASELINE 2008 GREENHOUSE GAS EMISSIONS SUMMARY • 2008 Annual Greenhouse • City Facility & Gas Emisssions • Operations • Metric Emission Source tonnes Wo • Category CO2e Comments • Buildings 637 64.7 See Appendix A for detailed breakdown of buildings Vehicle Fleet 6 0.6 Includes passenger vehicles, other on-road vehicles, • and off-road gasoline &diesel fuel uses • Employee Commute 9 0.9 • Streetlights 295 30.0 Includes both metered and non-metered lights • Contract Services 37 3.8 Includes lawn mowing, solid waste collection, and • snow plowing • Total 984 100.0 • • • City of Oak Park Heights Page 7 • Baseline Greenhouse Gas Emissions Inventory #Bonestroo 000055-10168-0 • • • • • • • CITY OF OAK PARK HEIGHTS • • Figure 2. City Facilities and Operations 2008 Greenhouse Gas Emissions, By Category • • • 37 • • •Buildings-64.7% • •Vehicle Fleet-0.6% • Employee Commute-0.9% • •Streetlights-30.0% • 011. •Contract Services-3.8% • *Units in Metric Tonnes of CO2e • • • __ • • RESIDENTIAL SECTOR • Greenhouse gas emissions associated with the residential sector arise from home heating and cooling, illumination, and appliances (cooking, refrigerator, entertainment equipment, etc.). • Natural gas combustion is the principal method of space and hot water heating. Much of the • housing stock is also serviced by electrically-driven air conditioning systems. Lacking ready access to detailed residential energy consumption data, the current study relied on demographic and • utility statistical data to infer energy use—and estimate associated greenhouse gas emissions. • Table 5 provides a detailed breakdown of greenhouse gas emissions associated with the City's • residential sector. • COMMERCIAL SECTOR • In addition to space heating and cooling, some commercial establishments (e.g., supermarkets, • restaurants) have substantial process energy demands. Lacking ready access to detailed commercial energy consumption data, the current study relied on demographic and utility statistical data to infer energy use—and estimate associated greenhouse gas emissions. Table 6 • provides a detailed summary of greenhouse gas emissions associated with the City's commercial • sector. • • • • • • • City of Oak Park Heights Page 8 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • • • CITY OF OAK PARK HEIGHTS • • TABLE 5. RESIDENTIAL BASELINE 2008 GREENHOUSE GAS EMISSIONS SUMMARY • 2008 Annual Greenhouse Gas Emisssions • Emission Source Category Metric tonnes CO2e Home Energy Use • • Electricity 14,567 85.4 • Light Fuel Oil 0 0.0 • • Natural Gas 1,742 10.2 • Sub-Total 16,310 95.6 • • Transportation 750 4.4 • Total 17,060 100.0 • • TABLE 6.COMMERCIAL SECTOR BASELINE 2008 GREENHOUSE GAS EMISSIONS 2008 Annual • Greenhouse Gas Emisssions • Emission Source • Specification Metric tonnes CO2e • 413,139 sq ft. 1,787,318 • • INSTITUTIONAL SECTOR • The only institutional facility greenhouse gas emissions quantified for the baseline emission • inventory were those of the Minnesota Correctional Facility. Detailed 2008 energy consumption • records were provided by the facility's administration. That information was input to the CACP • software, which yielded estimated Scope 1 &Scope 2 greenhouse gas emissions estimates. In addition to heating, cooling, and illumination, the Facility hosts a diesel-fired electrical generator • that the local utility (Xcel Energy) has arranged to dispatch remotely, for peak shaving duty. • Table 7 provides a summary of greenhouse gas emissions associated with the Correctional Facility. • • • • • • • City of Oak Park Heights Page 9 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • • • CITY OF OAK PARK HEIGHTS • • TABLE 7.INSTITUTIONAL SECTOR BASELINE 2008 GREENHOUSE GAS EMISSIONS • 2008 Annual Greenhouse Gas • Emisssions Emission Source Category Metric tonnes CO2e Correctional Facility 970,727 • INDUSTRIAL SECTOR • Two significant industrial facilities were identified for quantification: Xcel Energy's A.S. King coal- ! fired electrical power plant and the Metropolitan Council's St. Croix Valley Waste Water Treatment Plant. The data necessary to quantify the waste water treatment plant's greenhouse • gas emissions were not publicly available. Since the Met Council is committed to submitting a statutorily-required greenhouse gas emissions inventory to the state legislature by January 2011, • a placeholder has been inserted in the City of Oak Park Heights emissions inventory to • accommodate those results. • The King power plant's greenhouse gas emissions were quantified using data from MPCA's review • of MERP Proposal2 (pg. 35) and standard U.S. EPA emission factors3. Table 8 provides a summary • of greenhouse gas emissions associated with the industrial sector. • • TABLE 8. INDUSTRIAL SECTOR BASELINE 2008 GREENHOUSE GAS EMISSIONS 1980 Greenhouse Gas Emissions • (ton/yr) • Facility CO2 N20 I CO2e • Metropolitan Council's St. Croix Valley Waste Water Treatment Plant - - - • Xcel Allen S. King Power Plant 3,810,897 10 3,813,918 • Total' - I - I - • In some respects, including the power plant in the City's inventory amounts to double-counting, • since emissions associated with electrical generation are included within each end-users'Scope 2 • emissions. However, the plant's emissions clearly meet the definition of Scope 1 (onsite) releases, so it seems appropriate to account for them in some manner. A possible middle ground • may be to credit only those emissions associated with the plant's own operation (i.e., the plant's • "parasitic"load) or, possibly, emissions associated with the non-productive, "wasted", energy. Such enhancements are outside the scope of this baseline inventory, but are offered as potential • future enhancements. • • Minnesota Pollution Control Agency,Xcel Energy Metropolitan Emission Reduction Project,Minnesota Pollution Control • Agency, Reply Comments, May 28,2003. 'U.S. EPA,"A Compilation of Emission Factors(AP-42)",CHIEF web site, http://www.epa.gov/ttn/chief/ap42/index.html. • • • • City of Oak Park Heights Page 10 • Baseline Greenhouse Gas Emissions Inventory Bonestroo 000055-10168-0 • • • • 0 • CITY OF OAK PARK HEIGHTS • GREENHOUSE GAS MANAGEMENT FRAMEWORK • • FINDINGS • Analysis of the baseline greenhouse gas emissions inventory yields the following findings that • were used to craft a framework for managing those emissions in support of the City's efforts to • control its impact on global climate change: • • The King plant's emissions dominate the community's overall emissions • • While emissions associated with City facilities and operations represent less than one-tenth of one percent of the community's non-power plant emissions, some of the emission sources, • such as street lighting, are good candidates for improving performance • • The relatively high contribution of residential electrical use on non-power plant community • greenhouse gas emissions suggests that programs focused on energy efficient appliance (for example, EnergyStar®) may be effective in reining in greenhouse gas emissions associated • with this sector • • The commercial sector accounts for over one-quarter of community-wide greenhouse gas emissions • • The institutional sector (Correctional Facility) accounts for over ten percent of community- • wide emissions • GREENHOUSE GAS EMISSIONS MANAGEMENT FRAMEWORK • The City of Oak Park Heights has the ability to directly control the greenhouse gas emissions • from its facilities and operations. It also can influence energy use behavior and, consequently, • greenhouse gas emissions from the City's residential, commercial, institutional, and industrial sectors—both by setting an example, and through its municipal rules and policies. • A companion Energy Assessment Report identified eight energy conservation opportunities recommended for reducing the City's energy use and expenditures. In addition to saving money, • the reduced energy use would reduce the City's Scope 2 greenhouse gas emissions. Table 9 • presents these high priority energy projects, their investment costs and energy savings—as well • as the associated greenhouse gas emissions savings from each opportunity. • Table 9. City Energy Conservation Opportunities—Costs and Savings Summary Investment Energy Cost Greenhouse Gas • Cost Energy Savings Emissions Savings Energy Conservation Opportunity ($) Savings ($/year) (6 CO2e/year) • 1 Add weatherstripping to doors $ 100 70 therms $ 54 824 • 2 Program thermostats to reduce IiVAC use when building is • unoccupied 3 $ 104 therms $ 80 1,222 Replace gas furnaces with high • efficiency units when replaced $ 4,000 364 therms $ 280 4,278 4 Replace pump motors with premium • efficiency motors when replaced $ 3,540 9980 kW-hr $ 998 14,291 5 Replace traditional traffic light lamps • with LED lamps when replaced $ 2,000 2870 kW-hr $ 287 4,110 • 6 Replace incandescent lamps with CFLs when lamps are replaced $ 30 400 kW-hr $ 40 573 Add occupancy sensor control to 7 • lighting circuits $ 85 300 kW-hr $ 30 430 8 Replace mercury and high pressure • sodium light fixtures with LED fixtues $ 3,000 733,kW-hr $ 73 1,049 TOTALS $ 12,755 1,842 26,777 • City of Oak Park Heights Page 11 • Baseline Greenhouse Gas Emissions Inventory #Bonestroo 000055-10168-0 • • • • • • • Given its small contribution to the City's greenhouse gas inventory (less than 1 percent), the • vehicle fleet's energy efficiency was not explicitly analyzed. However, new vehicle options, such as gasoline-electric hybrids, have the potential to halve fuel consumption and greenhouse gas • emissions, compared with the City's existing complement of vehicles. While emission reductions • would be small in absolute terms, the City's adoption of innovative technology can serve to • motivate other sectors of the community to consider similar environmentally-preferable solutions. • Following are some energy and greenhouse gas management opportunities that may be useful in • devising a City greenhouse gas management program (often referred to as a"climate action plan"). Corresponding estimates of emissions reduction are provided, based on best available • information. The resulting framework is intended to serve as a vehicle for stimulating community • debate on appropriate climate action objectives and measures. The Table 10 presents a rough • estimate of the range of emission reductions achievable by each candidate element. • 1. Implement the eight Energy Conservation Opportunities recommended in the recently- • completed City of Oak Park Heights Energy Assessment Report • Addition of weather stripping to doors 0 • Adjusting thermostats of unoccupied buildings to a minimum level • • Replace existing furnaces with high efficiency units as they are retired • Replace pump motors with premium efficiency motors when they are retired l• • Replace traffic light lamps with LED lamps as they are replaced S .• Replace incandescent lamps with CFL5 when replaced • Install occupancy sensor lighting controls to selected installations • • Replace mercury and high pressure sodium light fixtures with LED lamps • 2. Work with Xcel Energy to encourage a reducing the carbon intensity of electrical generation at the A.S. King power plant; while the City has little direct influence on that • plant's operations, as its municipal host, Oak Pak Heights has standing to work with the • utility to encourage efficiency upgrade investments that would increase the value of the plant assets while reducing its carbon intensity • • Reduce heat rate by investing in improved controls and reduced thermal • losses • Evaluate opportunity for using (carbon neutral) biomass to displace a portion • of the plant's fossil fuel demand • 3. Continue to use opportunities such as the Energy Fair to educate City residents in the value of adopting energy efficient habits and appliances • 4. Consider instituting energy efficiency requirements for the commercial and institutional sectors, or using government incentives for this purpose 5. Despite transportation's very small contribution to the total greenhouse gas emissions • inventory, invest in infrastructure improvements that encourage non-motorized transport, • such as off-road trails, which yield greenhouse gas emission reductions in addition to • recreational value • Table 10. Prospective Greenhouse Gas Emission Reductions of Climate Framework Elements • Estimated Annual Reduction From 2008 Baseline (metric tonne,CO2e) Percent • Low I High Change • aty 49 98 5 - 10 Residential 341 1,365 2 - 8 • Commercial 76,200 228,600 4 - 12 Institutional 48,537 194,146 5 - 20 • Industrial 38,139 114,418 1 - 3 • Total Community 163,266 538,627 2 - 8 5 City of Oak Park Heights Page 12 • Baseline Greenhouse Gas Emissions Inventory #Bonestroo 000055-10168-0 • • • • • • • The greenhouse gas emissions management framework described above offered as an example • of the energy and emissions reductions that are technologically possible for the Oak Park Heights community. Other than the City's assessment (which was predicated on the results of the Energy • Assessment Report), the economic feasibility of the reductions has not been evaluated. • The City of Oak Park Heights'preferred approach to addressing global climate change objectives • will necessarily be the product of public debate and policy consideration, with additional technical • analyses likely. The City has already set a good example by adopting cost-effective energy • efficiency measures in its design of the new City Hall, and as infrastructure replacements and additions are made. The relatively young age of much of the community's structures makes a • goal of 5% reduction of greenhouse gas emissions by 2020 a worthwhile goal, while a 10% • reduction over the same timeframe would be particularly ambitious. • The 2008 baseline greenhouse inventory will enable the City to document how its policies and • energy efficiency investments will contribute to controlling the community's greenhouse gas • emissions. • • • II • • • • • • • • • • • • • • • • • • • • • • City of Oak Park Heights Page 13 • Baseline Greenhouse Gas Emissions Inventory �Bonestroo 000055-10168-0 • • • • • • • Appendix A • CITY GOVERNMENT DETAILED BASELINE YEAR 2008 GREENHOUSE GAS EMISSIONS • • Annual Qeenhouse Gas Emissions • CO2e Percent • (metric • Category Element Source tonne) Buildings • Autumn Hills Park Electricity 7 0.7 • Brekke Park Electricity 5 0.5 • Natural Gas 5 0.5 • City Hall &Pumphouse #1 Electricity 371 38.1 • Natural Gas 45 4.6 • Cover Park Electricty 3 0.3 • Natural Gas 7 0.7 • Lift Stations Electricity 56 5.7 • Pumphouse#2 Electricity 134 13.7 • • Swager Park Electricity 1 0.1 • Valley View Park Electricity 1 0.1 • Water Tower Electricity 2 0.2 II • Buildings Subtotal 637 65.3 Vehicle Fleet Vehicles Gasoline 5 0.5 • Diesel 1 0.1 • Vehicle Peet Subtotal 6 0.6 • Streetlights Metered Street Lights Electricity 130 13.3 • Non-Metered Street Lights Electricity 165 16.9 • • Street Lights Subtotal 295 3L5 Contract Services Waste Collection Diesel 15 1.5 • Recycling Collection Diesel 15 1.6 • Lawn Mowing Gasoline 2 0.2 Snow Plowing-Trucks Diesel 2 0.3 • Snow Plowing-Grader Diesel 3 0.3 • Contract Services Subtotal 37 31.5 • City TotalI 975 ( 100.0 II • City of Oak Park Heights Bonestroo Page A-0 • Baseline Greenhouse Gas Emissions Inventory 00005540168-0 • • • • >+ 0 0 O ,I . _ a) > 0 _ m — N O a) cn -2 T O W EL O = y N 1 CC = co "nt a. a) CO 0 O -� E t = a) U � o a) e U o U >, a) U cD CO 0o o N ox a� a ' O 0 2 / Ull a CU = a) CO c as 0 cn t o E§ 7 0 0. \ o & 3 / 2 C § v 2 . 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