Alstonvale Net Zero House
     Montréal ZERO

     SEVAG POGHARIAN DESIGN
     3705 Saint Ambroise
     Montreal, Quebec
 ...
Core Project Team
  Sevag Pogharian Design, team leader
  Concordia University
  Solar Buildings Research Network
  Concep...
Project Highlights
  One of twelve winners of CMHC’s EQuilibrium initiative
  Single-family detached, site-built house in ...
Goal
• Change the single-family homebuilding paradigm
  Shift it towards an approach and a methodology that has, at its co...
EQuilibrium Objectives
 Health
 Energy
 Resources
 Environment
 Affordability
Additional Objectives
  LEED certification - platinum
  PV-thermal demonstration project for IEA
  Achieve net zero energy ...
5.5 Domestic needs
                 kW


                                  1.5 kW car
                                  Ch...
Net Zero Energy Lifestyle
  Domestic energy needs
  Local transportation energy needs
Plans
BASEMENT AREA:!                                  !
                                                                       ...
MAIN FLOOR AREAS:!                               !
                                                                       ...
UPPER FLOOR AREA (INITIAL PHASE):!!
                                                   Upper floor habitable: 89 sq.m. (959...
Slope 9:12
              Slope 9:12                 Slope 9:12




                                                       ...
BEDROOM 1




DINING            KITCHEN


                                       Bicycle storage




MECHANICAL ROOM




 ...
Storage




             Rolling insulating panels   GARAGE




Y HOUSING!                                                ...
Powder room             LIVING




Y HOUSING!                                          NET ZERO ENERGY HEALTHY HOUSING!
  ...
BEDROOM 1                                                             BEDROOM 2




             DINING                   ...
Vestibule   Powder room   GARAGE




Y HOUSING!                                                               NET ZERO ENE...
Design Flexibility
Initial Phase




Basement             Main Floor          Upper Floor                       Roof




I...
UPPER FLOOR AREA (INITIAL PHASE):!!
                                                   Upper floor habitable: 89 sq.m. (959...
UPPER FLOOR AREA (FINAL PHASE):!             !
                                                    Upper floor habitable: 1...
Vestibule   Powder room   GARAGE




Y HOUSING!                                                               NET ZERO ENE...
Bathroom   BEDROOM 4




             Vestibule   Powder room              GARAGE




Y HOUSING!                          ...
Storage




             Rolling insulating panels   GARAGE




Y HOUSING!                                                ...
BEDROOM 4




Rolling insulating panels   GARAGE




                                                      NET ZERO ENERGY...
Project Schematic
To domestic                                                                                                               ...
Energy Consumption
SPACE     WATER
                 HEATING   HEATING   APPLIANCES   LIGHTING   COOLING

CONVENTIONAL      22,000    6,000   ...
SPACE     WATER
                 HEATING   HEATING   APPLIANCES   LIGHTING   COOLING

CONVENTIONAL      22,000    6,000   ...
SPACE            WATER
                                                        HEATING          HEATING   APPLIANCES   LIG...
PELLET
                                                                                                                   ...
Path to Net Zero
1. REDUCE ENERGY REQUIREMENT
   a) High-performance building envelope
   b) Reduce demand loads
   c) Pas...
Path to Net Zero
  Optimization
  Integration
Project Schedule
 October 2007:                  Finalize financing
 November 2007 - May 2008:      Construction
 May 2008 ...
Pro Forma Project Costs
                                 Cost / sq.m.    Cost / sq.ft
                                  (t...
Incremental Cost of Net Zero
 PV Array & mounting System   $63,500
 Solar thermal for DHW         $5,000
 Windows         ...
Payback Period
ALSTONVALE NET ZERO HOUSE                                       CONVENTIONAL HOUSE
         ADDITIONAL                  AD...
ALSTONVALE NET ZERO HOUSE                                       CONVENTIONAL HOUSE
         ADDITIONAL                  AD...
Net Present Value
 NPV of the Alstonvale Net Zero House & a conventional
 house are similar under these assumptions
 This ...
Hurdles
 GST & QST rebates
 Municipal regulators
 Resident’s Associations
 Construction financing
 Buyer’s mortgage
 Buyer’...
GBF2007 - alstonvale netzero home - sevag pogharian
GBF2007 - alstonvale netzero home - sevag pogharian
GBF2007 - alstonvale netzero home - sevag pogharian
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GBF2007 - alstonvale netzero home - sevag pogharian

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Alstonvale Net Zero home - one of the CMHC EQuilibrium home winners. From Green Building Festival 2007

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GBF2007 - alstonvale netzero home - sevag pogharian

  1. 1. Alstonvale Net Zero House Montréal ZERO SEVAG POGHARIAN DESIGN 3705 Saint Ambroise Montreal, Quebec H4C 2C4 514-935-5210 www.spd.ca www.MontrealZERO.ca
  2. 2. Core Project Team Sevag Pogharian Design, team leader Concordia University Solar Buildings Research Network Concept R Régulvar Airtechni Solar Design Associates (SDA)
  3. 3. Project Highlights One of twelve winners of CMHC’s EQuilibrium initiative Single-family detached, site-built house in Hudson, Québec Designed for incremental growth Uses PV-thermal technology Uses graywater and harvests rainwater
  4. 4. Goal • Change the single-family homebuilding paradigm Shift it towards an approach and a methodology that has, at its core, considerations of site, environment and resource efficiency
  5. 5. EQuilibrium Objectives Health Energy Resources Environment Affordability
  6. 6. Additional Objectives LEED certification - platinum PV-thermal demonstration project for IEA Achieve net zero energy lifestyle
  7. 7. 5.5 Domestic needs kW 1.5 kW car Charge an electric 7 kW Total Generation
  8. 8. Net Zero Energy Lifestyle Domestic energy needs Local transportation energy needs
  9. 9. Plans
  10. 10. BASEMENT AREA:! ! Basement habitable: 28 sq.m. (301 sq.ft.) 5,000 litre reservoir (54" x 84" x 67") UNEXCAVATED MECHANICAL ROOM Up Storage NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Basement! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  11. 11. MAIN FLOOR AREAS:! ! Footprint:! 166 sq.m. (1,789 sq.ft.)! Main floor habitable:! 84 sq.m. (909 sq.ft.)! Garage: 50 sq.m. (540 sq.ft.) Bicycle ! storage Vegetable garden! (microclimate) GARAGE KITCHEN LIVING ROOM Masonry wall for thermal mass DINING Up Dn Up Rolling insulating panels Sunscreen above NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Main Floor Plan! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  12. 12. UPPER FLOOR AREA (INITIAL PHASE):!! Upper floor habitable: 89 sq.m. (959 sq.ft.) Walk-in Laundry! Storage Room BEDROOM 3 Dn BEDROOM 1 BEDROOM 2 NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Upper Floor - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  13. 13. Slope 9:12 Slope 9:12 Slope 9:12 Slope 12:12 Slope 12:12 Slope 12:12 NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Roof Plan! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  14. 14. BEDROOM 1 DINING KITCHEN Bicycle storage MECHANICAL ROOM NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section C - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  15. 15. Storage Rolling insulating panels GARAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section D - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  16. 16. Powder room LIVING Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section E! Date: 10 January 200744 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  17. 17. BEDROOM 1 BEDROOM 2 DINING LIVING MECHANICAL ROOM STORAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section A! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  18. 18. Vestibule Powder room GARAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section B - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  19. 19. Design Flexibility Initial Phase Basement Main Floor Upper Floor Roof Incremental Growth same same same Basement Main Floor Upper Floor! Roof ! ! A bedroom suite is added for an elderly parent or other
  20. 20. UPPER FLOOR AREA (INITIAL PHASE):!! Upper floor habitable: 89 sq.m. (959 sq.ft.) Walk-in Laundry! Storage Room BEDROOM 3 Dn BEDROOM 1 BEDROOM 2 NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Upper Floor - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  21. 21. UPPER FLOOR AREA (FINAL PHASE):! ! Upper floor habitable: 112 sq.m. (1,207 sq.ft.) BEDROOM 4 Walk-in Laundry! Room BEDROOM 3 Dn BEDROOM 1 BEDROOM 2 NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Upper Floor - Final Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  22. 22. Vestibule Powder room GARAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section B - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  23. 23. Bathroom BEDROOM 4 Vestibule Powder room GARAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section B - Final Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  24. 24. Storage Rolling insulating panels GARAGE Y HOUSING! NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section D - Initial Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  25. 25. BEDROOM 4 Rolling insulating panels GARAGE NET ZERO ENERGY HEALTHY HOUSING! Hudson, Quebec! Section D - Final Phase! Date: 10 January 2007 Sevag Pogharian Design www.spd.ca 0 1 2 5 10 feet
  26. 26. Project Schematic
  27. 27. To domestic RAINWATER water needs COLLECTOR Damper: D3 Exhaust at East façade Collector INSTANEOUS WATER HEATER EVACUATED SOLAR THERMAL TUBES DEHUMIDIFIER 40 tubes @ 30° inclination from horizontal Aprilaire Model 1700 (only on during summer) HEAT of DISSIPATOR ro PELLET BOILER ng Harman PB105 ci fa V2a thu water jacket Out So on Y ng L drain from dehumidifier zi B la M r g SE ea S cl A & AL In ra RM Ar HE y PV V T P um en shower pl 55°C PV V4e V4d V4c V4b V2b V4a P4a P2a DHW TANK Stiebel Eltron SBB300 Plus 305 liters (80.6 gallons) Temperature Range Summer: up to 90°C Winter: typically 10°C to 30°C WATER TO WATER HEAT EXCHANGER Overflow Power-Pipe P1a P1d Make-up WATER SOFTENER Heat exchanger: HE-1 P1b HEAT PUMPS Two - 3-Ton Climatemaster (GSW036) Water-to-water, heat pump GREYWATER RECOVERY P1e Make-up water To irrigation P1c P5a P6a V5a Water supply temperature range: Max.: 49°C Min.: 30°C P7 Typical: 35°C to 45°C Overflow Variable speed, ECM fan 1,000 cfm air = 85% HYDRONIC RADIANT FLOOR HEATING SPACE HEATING ZONES & CONTROLS: Controlled: Zone 1: Main floor, i.e. living, powder room, dining & kitchen To septic system Zone 2: Garage Zone 3: Upper floor bedrooms Water Main Individual Thermostat Controlled: THERMAL STORAGE RESERVOIR All upper floor bathrooms RAINWATER STORAGE RESERVOIR Exhaust 4,000 liters (±1,000 gallons US) 5,000 liters (±1,300 gallons US) Temperature range: 30°C to 60°C with stratification HRV Ventilation exhaust Fresh air intake HRV Secheuse / clothes dryer
  28. 28. Energy Consumption
  29. 29. SPACE WATER HEATING HEATING APPLIANCES LIGHTING COOLING CONVENTIONAL 22,000 6,000 8,000 1,000 2,000 R-2000 14,000 5,000 6,000 1,000 500 ADVANCED HOUSE 7,000 2,500 3,500 500 500 ALSTONVALE 137 0 0 0 0 40,000 kWh 30,000 20,000 10,000 0 Conventional R-2000 Advanced House Alstonvale Energy Consumption - with PV generation
  30. 30. SPACE WATER HEATING HEATING APPLIANCES LIGHTING COOLING CONVENTIONAL 22,000 6,000 8,000 1,000 2,000 R-2000 14,000 5,000 6,000 1,000 500 ADVANCED HOUSE 7,000 2,500 3,500 500 500 ALSTONVALE 3,400 150 3,000 365 0 40,000 kWh 30,000 20,000 10,000 0 Conventional R-2000 Advanced House Alstonvale Energy Consumption - without PV
  31. 31. SPACE WATER HEATING HEATING APPLIANCES LIGHTING COOLING CONVENTIONAL 22,000 6,000 8,000 1,000 2,000 R-2000 14,000 5,000 6,000 1,000 500 ADVANCED HOUSE 7,000 2,500 3,500 500 500 SPACE WATER APPLIANCES LIGHTING COOLING ALSTONVALE HEATING HEATING 3,400 150 3,000 365 0 ALSTONVALE (kWh) 3,400 150 3,000 365 0 40,000 kWh 5% 30,000 49% 43% 20,000 2% 10,000 0 AlstonvaleConventionalHouse:R-2000 use Net Zero energy Advanced House Alstonvale Energy Consumption - without PV
  32. 32. PELLET SOLAR BOILER ALSTONVALE (kWh) 6,745 571 SPACE WATER HEATING HEATING APPLIANCES LIGHTING COOLING CONVENTIONAL 22,000 6,000 8,000 1,000 2,000 R-2000 14,000 5,000 6,000 1,000 500 8% ADVANCED HOUSE 7,000 2,500 3,500 500 500 SPACE WATER APPLIANCES LIGHTING COOLING ALSTONVALE HEATING HEATING 3,400 150 3,000 365 0 ALSTONVALE (kWh) 3,400 150 3,000 365 0 40,000 kWh 5% 30,000 92% 49% 43% 20,000 Alstonvale Net Zero House: energy source 2% 10,000 0 AlstonvaleConventionalHouse:R-2000 use Net Zero energy Advanced House Alstonvale Energy Consumption - without PV
  33. 33. Path to Net Zero 1. REDUCE ENERGY REQUIREMENT a) High-performance building envelope b) Reduce demand loads c) Passive heating and passive cooling 2. GENERATE ENERGY TO REACH NET ZERO a) Active systems using renewable resources
  34. 34. Path to Net Zero Optimization Integration
  35. 35. Project Schedule October 2007: Finalize financing November 2007 - May 2008: Construction May 2008 - November 2008: Open house November 2008: Auberge Alstonvale December 2008 - December 2009: Monitoring
  36. 36. Pro Forma Project Costs Cost / sq.m. Cost / sq.ft (total area) (total area) Land Cost Soft Costs $32,500 $129 $12 Hard Costs $390,000 $1,554 $144 TOTAL $422,500 $1,683 $156 Before GST and QST
  37. 37. Incremental Cost of Net Zero PV Array & mounting System $63,500 Solar thermal for DHW $5,000 Windows $5,000 Insulation $5,000 HVAC equipment $5,000 TOTAL $83,500 $30 / sq ft Before GST and QST
  38. 38. Payback Period
  39. 39. ALSTONVALE NET ZERO HOUSE CONVENTIONAL HOUSE ADDITIONAL ADDITIONAL ADDITIONAL ADDITIONAL YEAR INITIAL COST ANNUAL COSTS GAIN AT SALE SUBTOTAL YEAR INITIAL COST ANNUAL COSTS GAIN AT SALE SUBTOTAL 0 $85,000 ($85,000) 0 $0 $0 1 $144 ($144) 1 $2,500 ($2,500) 2 $147 ($147) 2 $2,675 ($2,675) 3 $150 ($150) 3 $2,862 ($2,862) 4 $153 ($153) 4 $3,063 ($3,063) 5 $156 ($156) 5 $3,277 ($3,277) 6 $159 ($159) 6 $3,506 ($3,506) 7 $162 ($162) 7 $3,752 ($3,752) 8 $165 ($165) 8 $4,014 ($4,014) 9 $169 ($169) 9 $4,295 ($4,295) 10 $172 ($172) 10 $4,596 ($4,596) 11 $176 ($176) 11 $4,918 ($4,918) 12 $179 ($179) 12 $5,262 ($5,262) 13 $183 ($183) 13 $5,630 ($5,630) 14 $186 ($186) 14 $6,025 ($6,025) 15 $190 ($190) 15 $6,446 ($6,446) 16 $194 ($194) 16 $6,898 ($6,898) 17 $198 ($198) 17 $7,380 ($7,380) 18 $202 ($202) 18 $7,897 ($7,897) 19 $206 ($206) 19 $8,450 ($8,450) 20 $210 ($210) 20 $9,041 ($9,041) 21 $214 ($214) 21 $9,674 ($9,674) 22 $218 ($218) 22 $10,351 ($10,351) 23 $223 ($223) 23 $11,076 ($11,076) 24 $227 ($227) 24 $11,851 ($11,851) 25 $232 $175,000 $174,768 25 $12,681 $0 ($12,681) Additional initial cost: $85,000 Additional initial cost: $0 Additional gain at sale: $175,000 Additional gain at sale: $0 Starting annual grid-tie fee: $144 Starting annual energy cost: $2,500 Grid-tie fee escalator: 2.0% Energy cost escalator: 7.0% NPV discount rate: 7.0% NPV discount rate: 7.0% NPV: ($51,183.02) NPV: ($54,589.92)
  40. 40. ALSTONVALE NET ZERO HOUSE CONVENTIONAL HOUSE ADDITIONAL ADDITIONAL ADDITIONAL ADDITIONAL YEAR INITIAL COST ANNUAL COSTS GAIN AT SALE SUBTOTAL YEAR INITIAL COST ANNUAL COSTS GAIN AT SALE SUBTOTAL 0 $85,000 ($85,000) 0 $0 $0 1 $144 ($144) 1 $2,500 ($2,500) 2 $147 ($147) 2 $2,675 ($2,675) 3 $150 ($150) 3 $2,862 ($2,862) 4 $153 ($153) 4 $3,063 ($3,063) 5 $156 ($156) 5 $3,277 ($3,277) 6 $159 ($159) 6 $3,506 ($3,506) 7 $162 ($162) 7 $3,752 ($3,752) 8 $165 ($165) 8 $4,014 ($4,014) 9 $169 ($169) 9 $4,295 ($4,295) 10 $172 $115,000 $114,828 10 $4,596 $0 ($4,596) Additional initial cost: $85,000 Additional initial cost: $0 Additional gain at sale: $115,000 Additional gain at sale: $0 Starting annual grid-tie fee: $144 Starting annual energy cost: $2,500 Grid-tie fee escalator: 2.0% Energy cost escalator: 7.0% NPV discount rate: 7.0% NPV discount rate: 7.0% NPV: ($25,827.26) NPV: ($21,835.97)
  41. 41. Net Present Value NPV of the Alstonvale Net Zero House & a conventional house are similar under these assumptions This analysis quantifies only out-of-pocket expenses What about environmental externalities?
  42. 42. Hurdles GST & QST rebates Municipal regulators Resident’s Associations Construction financing Buyer’s mortgage Buyer’s home insurance

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