Global Views on Net Zero Building

Transcription

1 Global Views on Net Zero Building World Sustainable Energy Days, February 2015 Dr. Peter Graham, Executive Director Global Buildings Performance Network

2 Net Zero Energy Building How far from the Mainstream? Policy, Scalability & the focus on Cities The Economics of Ambition 2

3 The Deep Path GHG Savings > 2.1Gt by 2030 Scenarios for Thermal Energy Demand based on analysis of 14 regions (GBPN, 2012) 3

4 Building Goals 25% reduction in current thermal energy demand by 2020 & 50% by 2030 Doubling the annual rate of reduction in energy intensity each year between now and 2030 (-2.6%/yr) Sources: UNEP, 2012; GBPN, 2013; IEA 2014

5 Bridging the Gap Net Zero to Positive buildings as minimum required performance: New Policies and better Compliance More and Deeper Renovation: Markets for Efficiency are improving but need development; Investors and developers are ready to go deep : But need better information on costs & benefits and clear public policy This is Urgent: The cost of delaying action is increasing daily as inefficiency 5

6 Regional Burden 6 Source: GBPN-CEPT (2014)

7 Distance from Mainstream Source: IEA Annex

8 Distance from Mainstream Meridian Office Wellington, New Zealand Pixel Office Melbourne, Australia 8 Source:

9 Distance from Mainstream Verified NSEB = 39: Emerging NZEb = 152 Source: newbuildings.or First building on the National Register of Historic Places to achieve netzero status. Wayne N. Aspinal Federal Building Colorado 9 Listed as Emerging by NBI

10 Distance from Mainstream Jakarta, Indonesia the Pertamina Energy Tower. 99 Floors to be complete in 20, occupants Source: Greenbiz.com 10 Shaped like a funnel, the top of the tower capturing wind and sucking it inside to run a series of vertical wind turbines that will provide 25 % of the building's electricity.

11 Distance from Mainstream Devil in Definitions: Net Zero Site Energy Net Zero Source Energy Net Zero Energy Emissions Net Zero Energy Costs Net zero energy cost: the building has an energy utility bill of $0 over the course of a year but no energy service either. 11

12 Policy, Scalability & Cities 12

13 Policy, Scalability & Cities Other Policy Options: Sticks, Carrots & Tambourines Focus on Government Buildings, Standards and Procurement US Federal Order (2009): all new Federal buildings that are entering the planning process in 2020 or thereafter be "designed to achieve zero-netenergy by 2030 GSA considering a goal to verify at least 50% of their building area (including new, existing & leased) to achieve NZE by

14 Policy, Scalability & Cities Integrating NZEB or Net Zero Districts or Communities 14

15 Policy, Scalability & Cities Living Building Challenge NZEB Certification Criteria Source: living-future.org/netzero 15

16 Policy, Scalability & Cities 100 Smart & Sustainable Cities in India? - Indira-Paryavaran-Building, D Largest Roof-Top Solar Aray on a commercial Building India 16

17 Policy, Scalability & Cities "My daily usage was around four kilowatts of energy but my solar system produces more than 32 kilowatts a day. It's insane. I won't see another bill again.» " Distribution of Roof-Top P.V. installations by house-hold income QLD Austra 17

18 Will Net-Zero Ambition Pay Off? Quantifies the global and regional cost implications of ambitious scenarios for implementing large-scale energy efficiency improvements in buildings regions & 17 climate zones - 3 building types in 6 sub-categories - 5 building vintages - BAU, Moderate & High-Performance Scenarios - Builds on the 3CEP-HEP & GBPN Building Efficiency Scenario Models ( - Principle Cost-effective Investigatiors: best- practices of building Diana energy Ürge-Vorsatz, performance, PhD., which (3CSEP): can be András replicated Reith, for PhD. similar (ABUD): climatic conditions and building types 18

19 Key Findings Shallow energy efficiency improvements do not pay-off in the long run. Policy-Makers need to take a long-term view Energy prices and capacity building are key enablers of the deep efficiency scenario More data and more 19 research are

20 The Deep efficiency scenario for buildings is the only possible path to achieve R.O.I globally by Note: INV total cumulative additional investment costs; ECS - total cumulative energy cost savings

21 Shallow energy efficiency improvements do not pay-off in the long run. 21

22 Deep energy efficiency improvements are cost-effective for common building types. 22

23 Recommendations Develop ambitious building codes for new buildings in developing and emerging regions; Then introduce building codes for retrofit buildings Enforce energy perfromance requirements of codes Education & Training in advanced buildings for all construction professionals (e.g. architects, planners, engineers, equipment installers, 23

24 Conclusions NZEB is proven in demonstration but not mainstream There are Micro & Macro Economic Arguments for ambitious policy actions Need to convince developing and emerging economies of the scalability & synergies with broader climate and development goals Find a place in city planning and urban scale development The world is watching Europe 24

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