type 3: on-site Low Carbon Energy System · type 3: on-site Low Carbon Energy System • heating in...

OLYMPIC INTERNATIONAL AND ENERPRO SYSTEMS COLLABORATIVE 1

integrated energy solutions: overview

type 3: on-site Low Carbon Energy SystemRoger Bayley P. Eng.

OLYMPIC INTERNATIONAL AND ENERPRO SYSTEMS COLLABORATIVE

definitions: on-site Low Carbon Energy System

• TEDI - Thermal Energy Demand Intensity• all thermal energy load including heating, cooling and

Domestic Hot Water measured in kWh/m2/yr.• City of Vancouver: 40 kWh/m2/yr. (heating only)

• GHG - Green House Gas emissions • CO2 emissions resulting from all building energy functions

and measured in kgCO2e/m2/yr.• City of Vancouver: 4 kgCO2e/m2/yr.

• TEUI - Total Energy Use Intensity• total purchased input energy measured in kWh/m2/yr.• City of Vancouver: 130 kWh/m2/yr.

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integrated energy solutions: munic’ policy

OLYMPIC INTERNATIONAL AND ENERPRO SYSTEMS COLLABORATIVE

definitions: Provincial Step Code

• TEDI - Thermal Energy Demand Intensity• all thermal energy including heating, cooling and

Domestic Hot Water measured in kWh/m2/yr.• Step 2 - 45 kWh/m2/yr. (heating only)• Step 3 - 30 kWh/m2/yr. (heating only)

• GHG - Green House Gas emissions • Not designated in the Step Code

• TEUI - Total Energy Use Intensity• total purchased input energy measured in kWh/m2/yr.• Step 2 - 130 kWh/m2/yr.• Step 3 - 120 kWh/m2/yr.

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integrated energy solutions: gov’t policy


integrated energy solutions: technologytype 3: on-site Low Carbon Energy System

• heating in winter

• simultaneous heating and cooling in the shoulder seasons

• cooling in summer

• Domestic Hot Water (DHW) from renewable energy (80o C water)

• > 80% renewable energy

• near zero emissions

air to water air to water

heat pumpheat pump DHWstorage

source

resistanceboiler

electricity electricity

in-suite dynamic radiator

in-suite dynamic radiator

electricity

envelope performancewindow u-value .43 Btu/h.ft2 ˚F

wall u-value .139 Btu/h.ft2 ˚F

case study : 250 unit, 18,000 sq.m, 26 floors

envelope areawindow 40%

wall 60%

AERMEC COPheating 2.5cooling 4.2DHW 1.3

winter TEDI 40 kWh/m2/yr.

summer TEDI 24 kWh/m2/yr.

domestic hot water TEDI 32 kWh/m2/yr.*

*Based on actual field metered consumption


integrated energy solutions: performance case study250 unit 18,000 m2 residential high-rise (25 floors)heating: 3 options 50/40/30 kWh/m2/yr.cooling: 24 kWh/m2/yr.Domestic Hot Water: 32 kWh/m2/yr.

heating TEDI - based on envelope design parameterscooling TEDI - based on field metered dataDomestic Hot Water TEDI - based on field metered data

• energy rates as currently published and inflated for two years• system efficiencies from historic performance data• all systems installed with metering to reduce energy consumption

15% to 30% reduction in use


integrated energy solutions: energy cost thermal energy cost per month for 72 m2 suiteLow Carbon Energy System TEDI TEDI TEDI (heating TEDI) 50 40 30 kWh/m2/yr. kWh/m2/yr. kWh/m2/yr.

NEU + Chiller (100% gas) $56.82 $50.22 $43.62

AERMEC HP + 15% gas boiler $21.90 $19.86 $17.62

AERMEC HP + electric boiler $26.00 $23.46 $20.92

AERMEC HP + WWBoost $21.95 $19.95 $17.95


integrated energy solutions: emissions carbon emissions kgCO2e/m2/yr. - thermal energyLow Carbon Energy System TEDI TEDI TEDI (heating TEDI) 50 40 30 kWh/m2/yr. kWh/m2/yr. kWh/m2/yr.

NEU + Chiller (100% gas) 17.20 15.10 13.00

AERMEC HP + 15% gas boiler 3.10 2.80 2.40

AERMEC HP + electric boiler 0.50 0.50 0.40

AERMEC HP + WWBoost 0.40 0.40 0.40


integrated energy solutions: capital costsbuilding envelope upgrades 250 suite 18,000m2 - 25 floor high-riseTEDI heating only - 50kWh/m2/yr.

• typical 60% glass envelope $85 to $100/ft2

• average envelope cost per suite $29,000 +/-

• upgrade to TEDI 30kWh/m2/yr. 15 to 25% premium

• capital investment for suite upgrade $4,350 to $7,250

• capital investment for LCES upgrade $3,000+/- per suite

• carbon emissions .50 kgCO2e/m2/yr.


integrated energy solutions: metering Heat Recovery Ventilators (HRV’s) and metering

• HRV’s save approximately 7 kW/m2/yr. or $1.50 per month to the average consumer (72m2 suite)

• HRV’s add in the order of $4,000 to the suite capital cost• significant negative impacts on envelope integrity• no impact on LCES carbon emissions

• metering reduces consumption (15% modelling penalty)

• metering ensures choice and fairness for consumers and provides comprehensive data on building performance


integrated energy solutions: case study summary of analysis for TEDI 40 kWh/m2/yr.LCES AERMEC HP + WWB

• input energy cost (72 m2 suite) $19.95 per month• potential financial contribution

• metering systems $1,400 per suite• mechanical system upgrade up to: $5,000 per suite

• potential savings in construction cost• building envelope • Heat Recovery Ventilators

• potential savings in operational cost• reduced energy demand from metering 20 to 30% saving


integrated energy solutions: generationatmospheric energy recyclingenergy source

• 100% renewable energy• near zero emissions

energy efficiency• heating and cooling• Domestic Hot Water

energy sharing• efficient: NRP - COP 7.8 NRL - COP 3.0 AERMEC NRP - simultaneous

heating and cooling


integrated energy solutions: generationwater to water temp boost (WWB)energy source

• 100% renewable electrical energy

• near zero emissions

energy generation• boosts water temp to 80o C• replaces gas or electric boilers

energy efficiency• efficient AERMEC WWB - temperature

boost for Domestic Hot Water


integrated energy solutions: demonstration

Chard Development - Elenore 2106 Main Street58 unit 5,497 m2 residential mid-rise (7 floors) heating: 50 kWh/m2/yr. cooling: 20 kWh/m2/yr. domestic hot water: 32 kWh/m2/yr.

• twin AERMEC NRL heat pumps• electric back-up, peaking and DHW boost boilers• in-suite metering and consumer billing• global meters for performance management• long term maintenance and billing agreement

carbon footprint less than 1.0 kgCO2e/m2/yr.


integrated energy solutions: marketing

for the Municipality the LCES solution

• practically eliminates carbon emissions

• offers a cost conscious upgrade of building envelope performance

• ensures that projects use renewable electrical energy effectively

• provides the individual metering technology that supports energy use reporting and long term performance management


for the consumer the LCES solution

• provides cost effective heating and cooling for year round comfort

• offers in-suite metering and personal energy conservation and management

• allows for consumer ownership, choice and quality interior design solutions that facilitate views, light, acoustic privacy and personal wellbeing




for the developer the LCES solution

• expedited approval process from Municipal governments related to their emissions targets

• enhances both your project’s marketing and your financial Return-on-Investment

• experienced installation and operational maintenance limits call backs

• integrated responsibility for design and performance yields lower project risk


acknowledge Mike Mahannah, his Olympic Team and Steven Roka, and the Enerpro team for their support and contribution towards the implementation of Low Carbon Energy Systems

clean comfortable efficient cost-effective green

energy solutions

integrated energy solutions: collaboration

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