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Buildings for an All Renewable Energy Future - The Passive House Path for Utilities

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Utilities are charged by many States to transition the grid to all Renewable Energy generation. This is possible, BUT only if we start to design buildings that look specifically at HEATING Load reduction. This presentations shows exactly WHY this is an issue - even in sunny California - and offers alternate business model options for utilities to take charge of developing stored renewable energy to cover our winter seasonal shortfall.

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Buildings for an All Renewable Energy Future - The Passive House Path for Utilities

  1. 1. Bronwyn Barry, RA, CPHD California Public Utilities Commission Sept. 7, 2017 THE PASSIVE HOUSE Primary Energy Renewables (PER) Framework Building for an All-Renewable Energy Future: As Developed by:
  2. 2. 1. WHY Utilities should be interested in Passive House/Passivhaus 2. HOW the Passivhaus Primary Energy Renewable Framework is structured 3. WAYS to become involved… AGENDA IMAGE credit: Bronwyn Barry, Cornell Tech Passive House Tower, NYC
  3. 3. What’s in this for Utilities? IMAGE credit: Chie Kawahara’s Twitter feed – Sept.1st, 2017 1. Stable Peak Load predictions for both summer and winter…
  4. 4. What’s in this for Utilities? IMAGE credit: Allen Gilliland, One Sky Homes 2. Absolute energy targets for buildings with predictably reliable results (NO PERFORMANCE GAP!) PHPP kWh/a HP COP EST. ACT. HEAT 2,596 3 865 849 COOL 1,533 3 511 594
  5. 5. Image Credits: Bronwyn Barry What’s in this for Utilities? (Works for large buildings too)
  6. 6. APPLICABLE TO ART MUSEUMS Image Credit: Andrew Michler
  7. 7. APPLICABLE TO APARTMENT BUILDINGS SOURCE: Image Credits: Bronwyn Barry
  8. 8. APPLICABLE TO RENOVATIONS SOURCE: Image Credits: Bronwyn Barry
  9. 9. APPLICABLE TO NEW MIXED-USE DISTRICTS SOURCE: Image Credit: Andrew Michler
  10. 10. APPLICABLE TO TALL URBAN INFILL Image Source: Passive House Institute Image Credit: Twitter feed of VArqitectos
  11. 11. What’s in this for Utilities? IMAGE credit: Passive House Institute 3. Envisions a new business model for seasonal renewable energy storage… (more on this next.)
  12. 12. PROJECT EXAMPLE ( ONE OF MY OWN DESIGNS) SOURCE: One Sky Homes ALAMO PASSIVHAUS
  13. 13. ALL ELECTRIC (INDUCTION COOKTOP & LED’S)
  14. 14. PROJECT STATS Alamo - CA Climate Zone 12 HDD & CDD 2602 1578 Area & TFA 2968 SF 2342 SF Net Annual Energy Use & Production 10,707 kWh 12,767 kWh PV 7.5 kW Gas/Electric Split All Electric Mech systems Heat Pump, HRV Heat Pump WH NOMINALY THIS IS A PLUS ENERGY HOME…
  15. 15. ASSEMBLIES (hr.ft2.F/BTU) ROOF/CLG: R-38 CODE REQ’D R-46 WALLS: R-19 R-28 WINDOWS: U-0.57 FLOOR/SLAB: R-0 R-14 U-0.3 AS BUILT AIR TIGHTNESS: 3 ACH n50 0.3 ACH COMPARED TO 2016 T-24 CODE REQUIREMENTS
  16. 16. EUI = 9.5 -15000 -10000 -5000 0 5000 10000 PV Production HouseUse EV Charger Net + kWh/yr BY CURRENT ACCOUNTS MY NUMBERS LOOK GREAT!
  17. 17. BUT PRACTICALLY THIS HOME STILL NEEDS A UTILITY!
  18. 18. SOURCE: https://passipedia.org/certification/passive_house_categories/per#the_per_sustainability_assessment, THE WHY (& HOW) OF AN ALL RENEWABLE ENERGY GRID New DESIGN incentives needed
  19. 19. SOURCE: Illustration from ‘California’s All Renewable Energy Future’ by Bronwyn Barry HOW PRIMARY ENERGY RENEWABLE (PER) IS STRUCTURED Rejects the Net Metering calculation of ‘ZNE’… 1. Assumes a future all- renewable energy grid 2. Accommodates current fossil fuel supply (and disincents it slightly) 3. Focuses on Peak Loads 4. Accounts for short- and long-term energy storage
  20. 20. SOURCE: Illustrations by Bronwyn Barry, info: https://passipedia.org/certification/passive_house_categories/per#the_per_sustainability_assessment 1. Total Demand Reduction Allocated by:  Electricity  Hot Water  Heating  Cooling  Dehumidification 2. Seasonal Energy Demand 3. Regional Grid Renewable Supply Accounts for:  Wind  Solar PV  Hydro ~ Biomass ~ District Heat 4. Building Site & Size 6. Renewable Storage kWh of:  Short-term &  Long-term energy 5. Regional Peak Load Incentivizes Load shifting according to:  Demand Type  Daily Peak Use  Seasonal Peak 7. Appliance Energy Source Incentivizes fuel switching to electric heat pumps Accounts for:  Local renewable availability  Building size vs roof area  Supply vs Demand balance  Viable short- vs long-term storage IDENTIFIES TIME & TYPE OF ENERGY USE (ALIGNS WITH TDV)
  21. 21. WHAT THIS LOOKS LIKEFOR CALIFORNIA
  22. 22. CALIFORNIA’SPRIMARY ENERGY RENEWABLE FACTORS
  23. 23. CALIFORNIA’SPRIMARY ENERGY RENEWABLE FACTORS
  24. 24. CALIFORNIA’SPRIMARY ENERGY RENEWABLE FACTORS
  25. 25. SOURCE: https://sustainabilityworkshop.autodesk.com/buildings/measuring-building-energy-use  ✕ Renewables 3x better site utilization But non-Renewables given equal status  Previously ALL Electric penalized! DISCARDS OUTDATED UTILIZATION FACTORS
  26. 26. 15 kWh/m2yr or 4.75 kBTU/hr.ft2 10 W/m2 or 3.2 BTU/hr.ft2 n50 < 0.6 ACH (PER SLIDING SCALE) Heating/Cooling Demand: or Peak Heat Load: Air-tightness: Total Primary Energy: Image Credit: Andrew Michler Cooling Limits adjusted for Humid Climates: SAME RIGOROUSHEATING & COOLING TARGETS
  27. 27. THREE RENEWABLE ENERGY CERTIFICATION LEVELS Energy Supply from Renewable Resources Final Energy Demand at the BuildingPER = INCENTIVIZES: 1. Total Demand Reduction & Peak Load Shifting 2. Fuel switching to all-electric with heat pumps 3. Regional renewable grid efficiencies 4. Allows local and off-site renewable credits 5. Seasonal storage of renewables at utility scale 6. Urban density & equitable renewable credit for all buildings SOURCE: https://passipedia.org/certification/passive_house_categories/per#the_per_sustainability_assessment
  28. 28. SOURCE: http://www.slideshare.net/harrmann/the-new-phpp-version-9-project-specific-cause-effect APPLIEDTO A HOME IN PORTLAND, MAINE
  29. 29. BASIC PRINCIPLES 1. Manages ‘Loss’ 1. Driven by: Comfort Quality Durability 3. Credits renewables separately SOURCE: Image – California’s All Renewable Energy Future by Bronwyn Barry, CPHD RENEWABLE CREDITS ALLOCATED BY Projected Building Footprint Incentivizes large-scale and micro-grid renewable supply. Off-site generation allowed for Premium Tier. Does not penalize commercial, tall, shaded or urban infill projects with no site generation capacity. APPLIEDEQUITABLY ACROSS ALL BUILDINGS
  30. 30. BASIC PRINCIPLES 1. Manages ‘Loss’ 1. Driven by: Comfort Quality Durability 3. Credits renewables separately PRIORITIZES DEMAND REDUCTION Renewable sources given beneficial ‘Primary Energy Renewable’ factors Credits allocated to: On-site generation Off-site generation Green Roofs (Regional grid supply factored into this calculus.) SOURCE: Image – California’s All Renewable Energy Future by Bronwyn Barry, CPHD SUMMARYOF PRIMARY ENERGY RENEWABLE FRAMEWORK
  31. 31. “The mission of Passive House California is to educate the public about the Passive House building performance standard to help create healthy, comfortable, durable, energy- and resource-efficient buildings and communities.” COLLABORATING WITH OUR ORGANIZATION Passive House California
  32. 32. • Incorporated as California 501c.3 • Funded and driven by local members • Managed by Elected Board of Directors • Task forces led by members for event and projects NATIONAL: North American Passive House Network (NAPHN) naphnetwork.org INTERNATIONAL: International Passive House Association (iPHA) passivehouse-international.org OUR ORGANIZATION STRUCTURE
  33. 33. • Building Community Professionals: Architects, Engineers, Contractors, Energy Analysts • Developers & Building Owners • Policy Makers • With National & International Influence WHO WE ARE
  34. 34. • JOBSITE TOURS • OPEN HOUSE EVENTS • PROFESSIONAL TRAININGS • SPECIALIZED TOPIC WORKSHOPS • ANNUAL CONFERENCE • WEBSITE, NEWSLETTERS, PUBLICATIONS EDUCATIONAL FOCUS
  35. 35. CONFERENCES BUILDING CARBON ZERO SAN FRANCISCO 2013 SANTA CRUZ 2014 PALO ALTO 2015
  36. 36. • Partnered with Laney College, Oakland Rotary and the City of Oakland on affordable renovation • Hosted Design Charettes with Faculty & Members • Coordinated all Permit Documents & Energy Models • Provided Contractor expertise and product sourcing guidance to student builders LANEY PROJECT
  37. 37. PROFESSIONALTRAININGS WITH NAPHN BASIC PRINCIPLES 1. Manages ‘Loss’ 1. Driven by: Comfort Quality Durability 3. Credits renewables separately SOURCE: Image – California’s All Renewable Energy Future by Bronwyn Barry, CPHDSOURCE: Xavier Guacher Twitter feed of Passive House Academy Class in LA at Gensler, LA NEXT TRAININGS SCHEDULED FOR LA & SF IN LATE OCTOBER, 2017 MORE INFO: www.naphnetwork.org
  38. 38. OPEN HOUSE& JOBSITE TOURS BASIC PRINCIPLES 1. Manages ‘Loss’ 1. Driven by: Comfort Quality Durability 3. Credits renewables separately SOURCE: Image – California’s All Renewable Energy Future by Bronwyn Barry, CPHD
  39. 39. PUBLICATIONSAND DATABASE DEVELOPMENT Passive House Buildings CALIFORNIA’S ENERGY FUTURE Published in 2016 32 Projects featured from Northern, Central & Southern CA 3000 hard copies printed Free E-Book: http://passivehousecal.org/news/2016-passive-house-california-book
  40. 40. SOURCE: http://passivehousecal.org/news/2016-passive-house-california-book GROWINGDIVERSITY OF PROJECT TYPES RENOVATIONS ~40% OFFICE & MULTI-FAMILY ~5% NEW HOMES ~55%
  41. 41. SOURCE: http://www.passivehousecal.org/recent-member-projects EXPANDINGWEBSITE DATABASE 65+ PASSIVE HOUSE BUILDINGS CURRENTLY IN CALIFORNIA (2008 – 2016)
  42. 42. 2017 TRAININGS & WORKSHOPS PHCA 2017 NET ZERO BUILDINGS via Passive House C O M P R E H E N SI V E B U I L D I N G SC I E N C E TR A I N I N G JAN. 22, 23 & 24 + FEB. 6 & 7th, LOSANGELES JAN. 26 & 27th + FEB. 9, 10 & 11th, SACRAMENTO INFO & REGISTRATION: LEARN: CLIMATESPECIFIC ENVELOPES MECHANICALSYSTEM DESIGN WINDOW SPECS& DESIGN THERMALBRIDGECALCULATIONS ENERGY MODELING BASICS & more… www.passivehousecal.org Image Credit: Handel Architects. A RC HI TEC TS, EN G I N EERS, BUI LDERS, DEV ELO PERS & C O N S U L T A N T S “Passive House makes sense as a phrase, but I think it is an ac vist no on – a transforma ve no on… This is one example of how [we] can show the world a model that works in today’s reality...” – NYC Mayor, Bill de Blasio P H C A J a n u a r y 2 0 1 7 S O U T H B A Y OPEN HOUSE (AND JOBSITE) TOURS INFO & REGISTRATION: Visit thre e proje c ts using Pa ssiv e Ho u se Bu ild in g st r a t e g i e s t o a c h i e v e re m a rk a b le c o m fo rt a nd performance. Learn directly from the owners, builders and de signe rs a bout ma te ria ls, d e t a i l s a n d m e t h o d s. www.passivehousecal.org A RC HITEC TS, EN G IN EERS, BUILDERS, DEV ELO PERS & H O M E O W N E R S Saturday, JAN. 28th, 2017 2.00pm – 5.00pm Sunnyvale & LosAltos, CA Toursare FREEand open to the general public. (Registration isrequired.) CONSULTANT TRAINING OPEN HOUSE TOURS WORKSHOPS WORKSHOPS • Blower Door Testing • Heat Pump Water Heater Installation • Partnering with City of Berkeley & City of Palo Alto
  43. 43. ATTEND OUR BIG EVENT (naphnconference.com) SOURCE: http://www.naphnconference.com/  2 DAYS of WORKSHOPS  2 DAYS of PROGRAM  4 PROJECT TOURS KEYNOTE: Scott Foster, Director, Sustainable Energy Division of United Nations Economic Commission (includes USA & Canada.)
  44. 44. SOURCE MATERIAL:  Passive House Institute: passivehouse.com  ‘The PER Sustainability Assessment,’ Passipedia.org  Andre Harrmann, CertiPHiers & Harrmann Consulting  Bronwyn Barry, ‘California’s All-Renewable Energy Future’ RECOMMENDED READING: https://passipedia.org/certification/passive_house_categories/per#the_per_sustaina bility_assessment https://passipedia.org/basics/passive_house_- _assuring_a_sustainable_energy_supply/passive_house_the_next_decade SOURCE: Image – Sunnyvale Low Energy Renovation –designed by Bronwyn Barry THANK YOU Bronwyn Barry, RA, CPHD Email: info@passivehousecal.org Website: http://passivehousecal.org THANKS, FURTHER READING & CREDIT

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