The Community Centre Challenge www.trca.on.ca/mmc
The Community Centre Challenge • aims to identify, recognize and document the most energy efficient community centres • will run from 2016 to 2020 • participants will: • benchmark energy use for their buildings • normalize for variables between buildings • determine their conservation potential based on good practice targets from comparable facilities • buildings with the least targeted savings potential are considered the most energy efficient • the most energy efficient facilities for 2020 will be recognized and celebrated in 2021
Why Community Centres? • very energy intensive • complex buildings - different combinations of ice rinks, swimming pools, gymnasia and public meeting spaces • present a challenge for benchmarking and target setting • operate for long hours each day, seven days a week • opportunities for significant energy and cost savings
The Community Centre Challenge White Paper Documents the methodology by which site-specific energy targets are determined
Why Energy Targets? • provides clear end-point for conservation efforts • used to establish/quantify conservation potential and relative energy efficiency • supports planning of improvements • guides allocation of effort and resources • makes business case for action • uncovers operations and maintenance measures • informs performance objectives for staff and service providers
Energy Targets for Community Centres • this challenge establishes a standard energy target for a simple “basic” facility which is gas -heated and partially air conditioned, before adjustments for site-specific characteristics such as indoor ice rinks and pools • adjusted for site-specific amenities including pools and ice plants, weather (degree-day) variations from year to year, and heating energy sources
Total Energy Target for “Basic” Facility target derived from top quartile benchmark energy use intensities 2012 dataset of 79 recreational facilities in the Greater Toronto Area that have neither indoor rinks nor indoor pools standard (top-quartile) basic facility target is 21.8 ekWh/ft2 target considered good practice, requiring no special technology, just consistent application of good design & operational practices which are already in wide use
Component Energy Targets components above target levels Energy use Annual top quartile component intensities, ekWh/ft² point to where a building’s particular inefficiencies can be 9.21 Electric Baseload found 0.77 Electric Cooling measurement and testing used to 0.25 Electric Heating highlight building systems with high power densities which then 10.23 Total Electricity become candidates for retrofits 1.83 Gas Baseload and control improvements 9.71 Gas Heating 11.54 Total Gas 21.77 Total Energy
Electricity Components – Basic Facility Electricity Components
Thermal Components – Basic Facility Thermal Components
Energy Target Adjustments • Indoor ice rinks • Indoor pools • Food services • Electric heat • Heat pumps • Electric domestic hot water • Electric air-conditioning • Other energy sources • Weather
Target Adjustment – Indoor Ice Rinks • the standard for Indoor Ice Rinks [0.5 kWh per ft² of ice area per week of ice-in] is multiplied by 52 weeks a year and by the Total Ice Surface Area (ft2), and added to the basic target to create the Electric Baseload Target for the facility • the standard for Indoor Ice Rinks [0.5 kWh per ft² of ice area per week of ice-in] for the period when ice is not in use is then subtracted from the basic target to create the Electric Cooling Target for the facility
Target Adjustment – Indoor Pools • the standard for operation of an indoor swimming pool is 50 kWh of electricity (circulating pump and in-pool lighting) and 280 ekWh of natural gas per year per ft² of tank surface area • this standard for Indoor Pools [50 kWh per ft² of tank area] multiplied by the Tank Area (ft²) is added to the basic target to create the Electric Baseload Target for the facility • the base (non-weather-dependent) gas use standard for Indoor Pools [180 ekWh per ft² of tank area] multiplied by the Tank Area (ft²) is added to the basic target to create the Gas Baseload Target for the facility • the heating (weather-dependent) gas use standard for Indoor Pools [100 ekWh per ft² of tank area] multiplied by the Tank Area (ft²) is added to the basic target to create the Gas Heating Target for the facility
Other Target Adjustments See the White Paper for details of all other adjustment factors White Paper available at: https://trca.ca/wp-content/uploads/2016/05/Community- Centre-Challenge-White-Paper-Rev-0-final-April-26.pdf
Community Centre Challenge White Paper – List of Technical Reviewers Comments and feedback on the White Paper were received from the following individuals. Thanks to everyone for their input.
Community Centre Challenge White Paper – updates post technical review • references for adjustment factors added • worked example of adjustments added to appendix • actual savings will be presented in each year’s Annual Report for duration of the Challenge • materiality and availability of data are key criteria for inclusion of target allowances and adjustments • if participants are willing to datalog such electrical loads we will consider them for future target refinements
Community Centre Challenge – Setting the Stage • 48 participating buildings • range of energy use intensity is more than 5:1 • quarter of the buildings using more than 65 ekWh/ft 2 • median total energy use is 48.2 ekWh/ft 2 /year • top 10 have a median of 27.1 ekWh/ft 2 /year
Community Centre Challenge Data Collection • directly from utility companies • from excel spreadsheets submitted by participants • entered by a participant manually into MMC online system and database • participants can access their original data, benchmarks and monthly savings reports online at any time Building Profile • participants to complete and send to Enerlife
Energy Savings Potential *based on 2014 utility data
Energy Savings Potential *based on 2014 utility data
Savings Potential by Energy Component *based on 2014 utility data
Top Performing Community Centres - 2015 *based on 2015 utility data
Energy Assessment Report for Community Centres used to determine relative efficiency and conservation potential across portfolio so that effort is focused on high-potential facilities, and on specific areas of opportunity within those facilities
Savings Measures by Energy Component
Savings Measures by Energy Component
Savings Measures by Energy Component
Savings Measures by Energy Component
Savings Measures by Energy Component
Savings Measures by Energy Component
For more information on the Mayors' Megawatt Challenge or the Community Centre Challenge contact: Bernie McIntyre Kathryn Wilson Toronto & Region Conservation Enerlife Consulting (416) 661-6600 Ext 5326 (416) 915-1530 x 215 bmcintyre@trca.on.ca kathryn.wilson@enerlife.com www.trca.on.ca/mmc
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