The Race to Net Zero a view from the multifamily perspective. Berkeley Extension: Net Zero & AB 32 San Francisco, July 8, 2009

Transcription

1 The Race to Net Zero a view from the multifamily perspective : Net Zero & AB 32,

2 2 Year 2020 Outlook : Net Zero & AB32 o California s Big Bold Strategies AB 32 reduce our GHG emissions by 25% by 2020 Strategic Plan net zero energy in residential by 2020 o How will we get there? Codes & Standards Title 24 & Green Building Code Shovel ready market transformation programs Smart performance based design Technical assistance and green job training Sound land use policy

3 3 California Big Bold Strategies : Net Zero & AB32 o All new residential construction will be zero net energy by 2020 o All new commercial construction will be zero net energy by 2030 o HVAC industry will be reshaped to deliver maximum performance HVAC systems o Cost effective energy efficiency measures in low income residences by 2020

4 What exists today? Follow the Leaders

5 5 Codes & Standards : Net Zero & AB32 o California s Energy Strategy: Most stringent energy code in the country (Title 24) Utilities implement a large portfolio of energy programs Source: PG&E, 2009

6 6 Funded Research : Net Zero & AB32 o Very Low Energy Comfort (VLEC) funded by Southern California Edison Eliminate or significantly reduce the energy use for heating, cooling and ventilation of residential buildings Maintain or enhance occupant thermal comfort Enhance the ability of the house to stay comfortable in extreme weather events Contact: Abhijeet Pande, pande@h m g.com o Building America Department of Energy, demonstration project research

7 Market Transformation Programs 7 : Net Zero & AB32 Program Utility New Construction Energy Efficiency ENERGY STAR Qualified New Homes California Solar Initiative/New Solar Homes Partnership US Green Building Council LEED for Homes Start with 15% above Title 24 15% Better than Title 24 Requirement? YES YES YES YES Incentives Cash Incentives Design Assistance Basic Marketing Support ENERGY STAR logo ENERGY STAR Marketing Support Cash Rebates (25% Higher for Affordable Housing) N/A Program Website flexyourpower.com h-m-g.com (multifamily) energystar.gov gosolarcalifornia.ca.gov usgbc.org (National) davisenergy.com (CA) Build It Green Green Point Rated YES N/A greenpointrated.org Enterprise Green Communities YES $50,000/Project $5,000/Design Charrette (Affordable Housing Only) enterprisecommunity.org

8 8 California Multifamily New Homes (CMFNH) : Net Zero & AB32 Public service program: o Incentives o Design Assistance o Charrette Facilitation o Training o Program Coordination Funded by:

9 9 PG&E Net Zero Pilot Program : Net Zero & AB32 o Part of the proposed program portfolio o Approach: Design Integration Program Technologies Advancement Program Communities Program Demonstration Showcase Program o For more information contact: Nicholas B. Rajkovich, nbr4@pge.com Source: PG&E, 2009

10 California Utility Allowance Calculator (CUAC) 10 : Net Zero & AB32

11 11 Moving Beyond to Net Zero : Net Zero & AB32 o Title 24 s Reach Standards Tier II voluntary standards o New Solar Homes Partnership o ENERGY STAR New Homes o Thousand Home Challenge o Building America Source: CEC 2009

12 Smart, Performance Based Design On the way to zero energy energy

13 The Importance of Smart Design 13 : Net Zero & AB32 U.S. Energy Consumption by Sector. A reorganization of existing data combining the energy required to run residential, commercial, and industrial buildings along with the embodied energy of industry produced materials like carpet, tile, and hardware exposes architecture as the hidden polluter. Source: Metropolis, 2007

14 A New Paradigm: Smart Design 14 : Net Zero & AB32 o Achieving energy savings is not particularly expensive nor difficult o It just requires planning Consider cost of utilities Think high performance rather than code compliance Establish goals early with the design team Hire an expert energy consultant and involve them early Research incentives, resources, and technical assistance

15 The Integrated Design Process 15 : Net Zero & AB32 The key is ENERGY MODELING NOT Kellyoptra Dreamstime.com Brandonparry Dreamstime.com Title 24 modeling: it s not just about code compliance it s a design tool! Source: DesignAVEnues, 2009

16 Importance of an Energy Consultant 16 : Net Zero & AB32 o Choosing a good one Experience matters (relevant experience) Mindset matters o Collaborating A member of the design team Needs to understand all the design opportunities o Energy Modeling: When? Preliminary runs before and after a charrette To test design options To qualify for tax credits & other incentives To comply with green building programs To capture performance as accurately as possible o Often & Early

17 Strategies to Improve Efficiency 17 : Net Zero & AB32 o Climate specific designs o Reduce building loads to a practical minimum Super efficient walls, foundations, windows, and roofs Utilize o Meet building loads with higher efficiency systems Right size your systems, do not oversize o Passive solar heating and cooling o Take advantage of system synergies o Generate renewable energy on site o Educate occupants in building systems operations Source: CTG Energetics

18 18 Put Systems Synergies To Work : Net Zero & AB32 Photovoltaic/Thermal (PV/T) One process makes the side product of another process useful Heat is removed to make PV more efficient Heat is added to make heating and DHW more efficient

19 Current Examples

20 The Popular Example: Solara 20 : Net Zero & AB % above 2005 Title 24 (35% above 2001) 68% electricity bill reduction Up-front cost less than $1,446/unit

21 21 Plans for Market Rate Net Zero : Net Zero & AB32 o Modular Builder Zeta Communities multifamily infill recently written up in Source: Zeta Communities, 2009

22 22 Upcoming Challenges & Opportunities : Net Zero & AB32 o Early Analysis o Energy Modeling o Virtual Net Metering o Financing o Market Programs o Benchmarking o Behavioral Component o Split Incentives o Density vs. Gross Energy Savings Source: Global Green, 2009

23 23 Thank you. : Net Zero & AB32 Looking forward to discussion! Sophia Hartkopf Heschong Mahone Group, Inc x37 hartkopf@h m g.com m g.com/multifamily

24 Resources

25 25 Support for High Efficiency Residential : Net Zero & AB32 o 2008 Building Energy Efficiency Standards: o CA Energy Commission Energy Efficiency Hotline: title24@energy.state.ca.us Phone: or (toll free in CA) o New Solar Homes Partnership (NSHP) o Federal Tax Credits Source: CTG Energetics

26 Support for Renewable Technology 26 : Net Zero & AB32 o o o o o o Solar Ratings & Certification Corporation rating.org (SRCC) California Solar Energy Industries Association (CalSEIA) Energy Efficiency & Renewable Energy Office (EERE) National Renewable Energy Laboratory (NREL) Database of State Incentives for Renewable Energy (DSIRE) Global Green Solar Calculator

27 27 Support for Zero Energy Buildings : Net Zero & AB32 o Zero Energy Buildings Database o Building America program (US DOE/EERE) bout.html o Emerging Technologies Coordinating Council (ETCC) ca.com/ o Consortium for Energy Efficiency (CEE) o Partnership for Advancing Technology in Housing (PATH)

28 Commercial Buildings: Thinking Outside the Checklist by Amit Khanna Arup ADPSR NorCal/ July 8th, 2009

29 ..too many mandates & goals!! DOE: Zero Net Energy CBI CPUC, CEC adopt ZNE goal California Green Building Standards Code [ codifies LEED, voluntary Now, mandatory 2011] City & County of SF Green Building Ordinance [ LEED certified (Now), LEED Silver (2009), LEED Gold (2012)]

30 AB-32: Global Warming Solutions Act Reduce California GHG emissions back to 1990 levels by 2020

31 Title Effective Aug 2009?

32 Carbon footprint

33 Embodied Energy

34 Zero Net Energy Renewable energy Building energy Energy consumption 4.0 Midnight

35 Energy Approach

36 Energy Story

37 Integrated Design More Daylighting Natural Ventilation Building Controls Integration Less Improved Envelope Improved AHU Efficiency Thermal Comfort Stormwater Control Space Conditioning Microclimate Sun Shades Photovoltaics Reduce Potable Water Use Optimization Recycled Content Regional Materials Reduced Lighting Density Low-Emitting Materials High Performance Glazing Programming Schematic Design Design Development Project Timeline Construction Documents Construction

38 Integrated Design More Daylighting Natural Ventilation Building Controls Integration Less Improved Envelope Improved AHU Efficiency Thermal Comfort Stormwater Control Space Conditioning Microclimate Sun Shades Photovoltaics Reduce Potable Water Use Optimization Recycled Content Regional Materials Reduced Lighting Density Low-Emitting Materials High Performance Glazing Programming Schematic Design Design Development Project Timeline Construction Documents Construction

39 Integrated Design Owner: UC Berkeley Architects: P+W MEP: Arup S: Dasse

40

41 Thank You