The Community Centre Challenge www.trca.on.ca/mmc The Community - - PowerPoint PPT Presentation

www.trca.on.ca/mmc

The Community Centre Challenge

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
• f 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 &

• perational practices which are

already in wide use

Component Energy Targets

Energy use component Annual top quartile intensities, ekWh/ft² Electric Baseload

9.21

Electric Cooling

0.77

Electric Heating

0.25

Total Electricity

10.23

Gas Baseload

1.83

Gas Heating

9.71

Total Gas

11.54

Total Energy

21.77 components above target levels point to where a building’s particular inefficiencies can be found measurement and testing used to highlight building systems with high power densities which then become candidates for retrofits and control improvements

Electricity Components

Electricity Components – Basic Facility

Thermal Components

Thermal Components – Basic Facility

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
• f electricity (circulating pump and in-pool lighting) and 280 ekWh
• f 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

Comments and feedback on the White Paper were received from the following

• individuals. Thanks to everyone for their input.

Community Centre Challenge White Paper – List of Technical Reviewers

• 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 White Paper – updates post technical review

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/ft2

• median total energy use is

48.2 ekWh/ft2/year

• top 10 have a median of

27.1 ekWh/ft2/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

• n high-potential

facilities, and on specific areas of

• pportunity 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

• r the Community Centre

Challenge contact:

Bernie McIntyre Toronto & Region Conservation (416) 661-6600 Ext 5326 bmcintyre@trca.on.ca Kathryn Wilson Enerlife Consulting (416) 915-1530 x 215 kathryn.wilson@enerlife.com

www.trca.on.ca/mmc