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WSP Canada Inc.
BASALT
5030 CAMBIE STREET
PENNYFARTHING DEVELOPMENT GROUP
PROJECT NO.: 171-17484-00
DATE: DECEMBER 2017
WSP
SUITE 700
1045 HOWE STREET
VANCOUVER, BC, CANADA
V6Z 2A9
T +1 604 685-9381
F +1 604 683-8655
WSP.COM
EXECUTIVE SUMMARY
WSP was engaged by the Pennyfarthing Development Groups to perform an energy assessment of the Basalt multi-family residential building at 5030 Cambie Street in Vancouver.
The project is 89,548 ft2, consisting of 3,998 ft2 of townhouses, a 52,649 ft2 six-storey residential apartment building, over two levels of parkade totalling 32,900 ft2. These values are as-modelled. The building is market strata which will contain 51 units and support spaces, home to an estimated 148 people.
The purpose of this assessment is to evaluate the proposed design’s performance with respect to the 75% architectural design, for building permit compliance, and as an early assessment of LEED points. As part of the rezoning application, the project is to attain LEED Gold and 14 EAc1 points.
For Building Permit compliance, the 2014 Vancouver Building Bylaw, effect December 20, 2013, requires proof of minimal compliance with either ASHRAE 90.1-2010 or NECB2011 energy standard. Ventilation must comply with ASHRAE 62.1-2001.
For LEED, the project is registered as a LEED for Home Mid-Rise version 2010, project number 1000064939.
RESULTS
The energy model, which was created to reflect the proposed design, indicates that the building is currently achieving 16.8% cost savings over the reference model. This meets the minimum requirements of LEED Energy and Atmosphere Prerequisite 2 (EAp2): Minimum Energy Performance. This also translates to an achievement of 13 points under Energy and Atmosphere Credit 1 (EAc1): Optimize Energy Performance.
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page iii
S I G N A T U R E S
PREPARED BY
Shaun Martin, LEED AP, BEMP
Senior Energy Performance Specialist
This report was prepared by WSP for the account of Pennyfarthing Development Group, in accordance with the professional services agreement. The disclosure of any information contained in this report is the sole responsibility of the intended recipient. The material in it reflects WSP’s best judgement in light of the information available to it at the time of preparation. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. WSP accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This limitations statement is considered part of this report.
The original of the technology-based document sent herewith has been authenticated and will be retained by WSP for a minimum of ten years. Since the file transmitted is now out of WSP’s control and its integrity can no longer be ensured, no guarantee may be given with regards to any modifications made to this document.
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page v
TABLE OF CONTENTS
1 INTRODUCTION ................................................................... 1
1.1 AUTHORIZATION ................................................................................. 1
1.2 PROJECT DESCRIPTION ................................................................... 1
1.3 METHODOLOGY ................................................................................... 1
2 ENERGY PERFORMANCE .............................................. 2
2.1 PROPOSED DESIGN ............................................................................2
2.2 REFERENCE DESIGN ......................................................................... 4
3 RESULTS ................................................................................. 6
3.1 PROPOSED LEED DESIGN SAVINGS .......................................... 6
4 CONCLUSION ....................................................................... 8
APPENDICES
A ENERGY MODEL INPUT PARAMETERS
B LIMITATIONS
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 1
1 INTRODUCTION
1.1 AUTHORIZATION
WSP has been engaged by the Pennyfarthing Development Group to perform an energy assessment of the Basalt mult-family residential project in Vancouver, BC in accordance with the November 2, 2017 contract for services.
1.2 PROJECT DESCRIPTION
The project is 89,548 ft2, consisting of 3,998 ft2 of townhouses, a 52,649 ft2 six-storey residential apartment building, over two levels of parkade totalling 32,900 ft2. These values are as-modelled. The building is market strata which will contain 51 units and support spaces, home to an estimated 148 people.
1.3 METHODOLOGY
The Basalt project is pursuing certification under LEED for Homes Mid-Rise Canada and the energy modelling software eQuest 3.65 was used to complete this analysis.
The following drawings were used in developing the models for the project:
• Architectural progress set, 75%, dated 13 December, 2017
• Mechanical progress set, dated 15 September, 2017
• Electrical progress set, issued for coordination, dated 08 December, 2017
The following Standard and modelling guidelines were used analysing the building for code compliance and LEED:
• BC Building Code 2012
• Vancouver Building Bylaw 10908, i.e. VBBL 2014
• Ashrae 90.1-2010, covering energy performance
• Ashrae 62.1-2001, covering outdoor ventilation air for non-residential spaces
• Ashrae 62.2-2001, covering outdoor ventilation air for residential spaces
• Energystar Multi-Family High Rise Simulation Guidelines, issued Jan 2015
The purpose of the models used in this study is to provide guidance to the design team and the Owner. Actual energy consumption and operating costs will vary from the model results due to a variety of factors, including occupant behavior, building operation, equipment set up, weather, and some energy uses not accounted for in the models. Please see Appendix A for a detailed list of modelling inputs and assumptions.
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 2
2 ENERGY PERFORMANCE
2.1 PROPOSED DESIGN
The proposed design has incorporated several energy conservation measures (ECMs) which have improved its modelled performance over a similar reference building:
• High efficiency cooling chiller;
• High efficiency heating by condensing boilers;
• In-suite fan coils with ECM fans;
• In-suite ventilation heat recovery;
• Lighting reductions below Ashrae 90.1-2010 requirements;
• Exterior lighting power reductions (not yet modelled);
• High efficiency domestic hot water heating;
• Low flow plumbing fixtures;
• High performance envelope; and
• High performance glazing and frames.
The modelled annual energy performance of the proposed building is indicated in Table 1 below.
Table 1 : Modelled Proposed Building Performance
UTILITY Consumption
(ekWh) Cost ($)
Electrical Energy 392,702 kWh $35,510
Natural Gas 367,272 ekWh $7,143
Total 759,974 ekWh $42,653
The total annual modelled energy consumption amounts to 759,974 ekWh and the total annual energy cost is $42,653. LEED energy cost savings are 16.8%, which equates to 13 EAc1 points under LEED Midrise.
An end-use breakdown of the proposed building’s energy is shown below in Table 2 and Figure 1.
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 3
Table 2: Energy End-Use Breakdown for Proposed Design Model
END USE
ELECTRICITY
(kWh/yr) NATURAL GAS
(ekWh/yr) PERCENT OF TOTAL
(%)
Interior Lighting 105,926 - 14%
Exterior Lighting 7,875 1%
Receptacle Equipment 161,550 - 21%
Space Heating 189 263,258 35%
Domestic Hot Water 104,014 14%
Space Cooling 49,889 - 7%
Fans 59,235 - 8%
Pumps 8,037 - 1%
Total 392,702 367,272 100%
Figure 1: Energy End-Use Breakdown for the Proposed Design Model
Interior Lighting
12%Exterior Lighting
1%
Receptacle
Equipment
16%
Space Heating
39%
Domestic Hot
Water
21%
Space Cooling
5%
Fans
5%
Pumps
1%
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 4
2.2 REFERENCE DESIGN
The modelled annual energy consumption and cost for the reference building, created per the requirements in the Model National Energy Code for Buildings (MNECB) 1997, is shown in Table 3.
Table 3: Modelled Reference Building Performance
Utility Consumption
(ekWh) Cost ($)
Electrical Energy 420,241 kWh $39,043
Natural Gas 628,148 ekWh $12,217
Total 1,048,390 ekWh $51,260
The total annual modelled energy consumption amounts to 443,929 ekWh with a total annual energy cost of $26,593. LEED energy cost savings are calculated based on regulated load costs, which exclude plugs loads and are $24,781 for the reference building.
An end-use breakdown of the reference building’s energy is shown below in Table 4 and Figure 2.
Table 4: Energy End-Use Breakdown for Reference Model
END USE ELECTRICITY
(kWh/yr) NATURAL GAS
(ekWh/yr) PERCENT OF TOTAL
(%)
Interior Lighting 130,023 - 12%
Exterior Lighting 7,875 - 1%
Receptacle Equipment 170,332 - 16%
Space Heating 237 404,334 39%
Domestic Hot Water - 223,815 21%
Space Cooling 51,104 - 5%
Fans 53,850 - 5%
Pumps 6,820 - 1%
Total 420,241 628,148 100%
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 5
Figure 2: Energy End-Use Breakdown for the Reference Model
Interior Lighting
12%
Exterior Lighting
1%
Receptacle
Equipment
16%
Space Heating
39%
Domestic Hot
Water
21%
Space Cooling
5%
Fans
1%
Pumps
1%
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 6
3 RESULTS
3.1 PROPOSED LEED DESIGN SAVINGS
The energy model which was created to reflect the proposed design indicates that the building is currently achieving 39% cost savings over the reference model. This meets the minimum requirements of Energy and Atmosphere Prerequisite 2 (EAp2): Minimum Energy Performance. This also translates to an achievement of 9 points under Energy and Atmosphere Credit 1 (EAc1): Optimize Energy Performance.
Table 5 : Percent Cost Savings of Proposed Design over Reference (Regulated
Costs)
Utility Proposed Design
Energy Cost
Reference Design Energy
Cost Cost Savings
Total $42,653 $51,260 16.8%
Table 6: Percent Savings of Proposed Energy Consumption over Reference
END USE
ENERGY CONSUMPTION (EKWH/YR)
PERCENT ENERGY SAVINGS
(%) Reference Proposed
Interior Lighting 130,023 105,926 19%
Exterior Lighting 7,875 7,875 0%
Receptacle Equipment 170,332 161,550 5%
Space Heating 404,571 263,447 35%
Domestic Hot Water 223,815 98,586 56%
Space Cooling 51,104 49,889 2%
Fans 53,850 59,235 -10%
Pumps 6,820 8,037 -18%
Total 1,048,390 759,974 28%
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 7
Figure 3: Energy End-Use Breakdown for the Reference and Proposed Models
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
Int. Lights Ext. Lights Receptacles Heating Dom. Hot
Water
Cooling Fans Pumps
kW
h
Baseline Energy Consumption Proposed Energy Consumption
Basalt
Project No. 171-17484-00
Pennyfarthing
WSP
Page 8
4 CONCLUSION
Our analysis of the project design indicates that the building meets the minimum energy requirements to achieve Energy and Atmosphere Prerequisite 2 (EAp2) under LEED MidRise 2010. Additionally, the building achieves 13 points under Energy and Atmosphere Credit 1.
Please note that in addition to this report, mandatory ASHRAE checklists must be submitted to the USGBC.
APPENDIX
A MODEL INPUTS
Energy Model Inputs and Results
Modelling Software:
Reference Building:
Climate Zone:
Average Window-to-Wall Ratio
LEED for Homes Mid-Rise 2010Basalt, 5030 Cambie Street
BUILDING ENVELOPE
Suspended Slab, Residential over
parkade
R-F-5
R20 Spray faom
ARCHITECTURAL SYSTEMS DESCRIPTION
South
East
West
SC Design
0.46
Vancouver, B.C.
Project:
Location:
Date: December-19-17
eQUEST v3.65 build 7173
CZ5, 90.1 Table 5.5.5
ASHRAE 90.1-2010 (Appendix G)
Orientation
Insulated concrete Walls
SA4.1b / SA3.1a
Roof
R-1
R-20.8
(U=0.048)
Description
R20 Rigid on concrete
R-26.3
(U=0.038)
North
Overall 34%
36%
26%
38%
29%
Total
Construction
Windows and Glass Doors
ConstructionU- IP Value
Design
Overall frame plus
glazing performance
data
U- IP Value
ReferenceComments
Design values are estimated for Innotech PVC
windows. Min. 0.50 visible transmittance.
SC Reference
1.5" spray foam + 3-5/8" steel
stud with spray foam inboard
R-15.6
(U=0.064)
Townhouse Walls
WA6.3 a,b,c2 x 6 wood frame with R-22 batt R16.6
R-19.6
(U=0.051)
R-IP Value
Reference Case
Exposed Walls, Roofs, and Opaque Doors
CommentsR-IP Value
Design
R-13.25
R-21.8
U0.35U0.27 0.46
R-21
Roof
R-2 / 3 / 4
1.5" spray foam + 3-5/8" steel
stud with spray foamR16.05
R-20.8
(U=0.048)
Window ft2
2002
4706
1792
4490
12990
Gross Wall
6893
12326
6893
12326
38439
Apartment Walls
SA6.3 a,b,c / SA4.3
2" mineral wool with thermally
broken clips outboard and 2 x 6
steel stud with R22 batt inboard
R18.65R-15.6
(U=0.064)
Page 1 of 4
Predominant Delivery Systems
Typical in-suite system, assumed to apply to townhouses as well:
MECHANICAL SYSTEMS DESCRIPTION
Suites
100% outside air with air-to-air heat recovery ventilators. Zone-level four-
pipe fan coil units providing terminal heating and cooling. Multi-speed
fans. Supply air flow is autosized.
O/A Ventilation Rate Requirements
Ventilation rates the same in both buildings.
As per ASHRAE 62-2010
Roof-top 100% outside air make up air unit, HW coil, no cooling.
CommentsArea Delivery System DiversityArea
(cfm/ft²)
0.8 1.0 N/A
Roof top supply
air unit
Corridors and
common space
Heat recovery
ventilator/Fan coil
Zone-level hot water unit heaters, 2 kW capacity each.
Mechanical and
electrical rooms
System Serves
Notes:
1) Effective SHGC includes the aluminum frame; same value for proposed and reference.
2) Infiltration is software default.
Electric force
flow,baseboard or
unit heaters
Hot Water Unit
HeatersStorage areas
Description
Electric resistance heaters
Retail Spaces 7.5 0.12
Residential Areas
Occ (cfm/occ)
Reference Case
System type 1: Packaged terminal air conditioners with DX cooling
(COP 2.72) and hot water heating, constant volume fans. Supply air
flow is autosized.
System type 1
System type 1
System type 1
Page 2 of 4
Distribution Pumps
Plant Equipment
Domestic Hot Water
LIGHTING SYSTEMS
Gas-fired atmospheric,
efficiency 80%
Stairs
Boilers
Reference Case
Notes:
1. Pump parameters yet to be specified by the Mechanical Engineer
Power, head and flow are
auto-sized.
Capacity control= one-speed
Power, head and flow are
auto-sized.
Capacity control= one-speed
Ventilation rates the same in both buildings.
As per ASHRAE 62-2010
Flow is auto-sized.
Capacity control= one-speed
Flow is auto-sized.
Capacity control= one-speed
Reference Case
Gas-fired atmospheric
boilers. Efficiency=80%
CommentsFlow Rate (GPM)
Comments
Reference Case
Amenities 5.0 N/A0.06 0.8 1.0
0.53
System
0.55
Gas-fired, condensing, 92% efficiency. Assumed.
0.69
HW Loop Pumps
Serving LPD (W/ft2)
Flow is auto-sized. Head is 60 feet. High efficiency motor.
Capacity control= VSD
DHW Loop
PumpsDHW Loop
Flow is auto-sized. High efficiency motor.
Capacity control= one-speed
System Serving
Serving Description
Description
Boiler Pumps
Description (fixture, strategy, controls)
Gas-fired modular condensing boilers, assumed. Efficiency=92%
Controls Ref Case LPD (W/ft2)
Suites (hardwired
fixtures only)
Corridors
Flow is auto-sized. High efficiency motor.
Capacity control= one-speed
System
0.66
0.30 0.38
Interior Lighting
ELECTRICAL SYSTEMS DESCRIPTION
CHW Loop
DHW
Energystar MFHR
hourly demand per
person based on 25
USG/day
Autosized, EER = 11.2, per
table 6.8.1A
Hot Water Loop
CHW Loop
Pumps
Boilers HW Loop
Chiller CHW LoopRooftop air-cooled chiller, efficiency EER = 11.5, assumed. Serves
suites only.
Flow is auto-sized. Head is 60 feet. High efficiency motor.
Capacity control= VSD
Page 3 of 4
Parking 0.19
Lobby 0.900.72
0.15
Notes: Task lighting of 0.3 W/ft2 assumed in both models
1 kW assumed for both models
Not specified. ASHRAE 90.1-2010 minimum
controls.
0.76
0.98Multipurpose
Mech/Elec 0.95
0.50 0.63
1.23
Storage Areas
Exterior Lighting
Page 4 of 4
APPENDIX
B LIMITATIONS
APPENDIX
‘WSP Canada Inc. is the “Consultant” referenced throughout this document.
• The scope of our work and related responsibilities related to our work are defined in our project authorization (“General Terms and Conditions”).
• Any user accepts that decisions made or actions taken based upon interpretation of our work are the responsibility of only the parties directly involved in the decisions or actions.
• No party other than the Client shall rely on the Consultant’s work without the express written consent of the Consultant, and then only to the extent of the specific terms in that consent. Any use which a third party makes of this work, or any reliance on or decisions made based on it, are the responsibility of such third parties. Any third party user of this report specifically denies any right to any claims, whether in contract, tort and/or any other cause of action in law, against the Consultant (including Sub-Consultants, their officers, agents and employees).The work reflects the Consultant’s best judgement in light of the information reviewed by them at the time of preparation. It is not a certification of compliance with past or present regulations. Unless otherwise agreed in writing by the Consultant, it shall not be used to express or imply warranty as to the fitness of the property for a particular purpose. No portion of this report may be used as a separate entity; it is written to be read in its entirety.
• Only the specific information identified has been reviewed. No physical or destructive testing and no design calculations have been performed unless specifically recorded. Conditions existing but not recorded were not apparent given the level of study undertaken. Only conditions actually seen during examination of representative samples can be said to have been appraised and comments on the balance of the conditions are assumptions based upon extrapolation. Therefore, this work does not eliminate uncertainty regarding the potential for existing or future costs, hazards or losses in connection with a property. We can perform further investigation on items of concern if so required.
• The Consultant is not responsible for, or obligated to identify, mistakes or insufficiencies in the information obtained from the various sources, or to verify the accuracy of the information.
• No statements by the Consultant are given as or shall be interpreted as opinions for legal, environmental or health findings. The Consultant is not investigating or providing advice about pollutants, contaminants or hazardous materials.
• The Client and other users of this report expressly deny any right to any claim against the Consultant, including claims arising from personal injury related to pollutants, contaminants or hazardous materials, including but not limited to asbestos, mould, mildew or other fungus.
• Budget figures are our opinion of a probable current dollar value of the work and are provided for approximate budget purposes only. Accurate figures can only be obtained by establishing a scope of work and receiving quotes from suitable contractors.
• This work is based on the LEED® rating system, reference guides and letter templates at the time of issue. All advice and descriptions of credit requirements are subject to change with future versions of LEED® rating systems, reference guides and letter templates.