Shanti Pless, LEED AP NREL, Commercial Buildings Research Group. Tom Hootman, AIA, LEED AP BD+C RNL, Director of Sustainability

Transcription

1 Shanti Pless, LEED AP NREL, Commercial Buildings Research Group Tom Hootman, AIA, LEED AP BD+C RNL, Director of Sustainability

2

3 WHO IS PURSUING NET ZERO ENERGY?

4 New Buildings Institute Getting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)

5 New Buildings Institute Getting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)

6 New Buildings Institute Getting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)

7 California PUC 2030 Massachusetts 2030 Federal / EISA 2030 ASHRAE Vision Challenge Living Building Challenge

8 13 1K-5K K-10K 10K-25K 25K-50K New Buildings Institute Getting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012) K-100K >100K

9 NREL RESEARCH SUPPORT FACILITY NREL RESEARCH SUPPORT FACILITY II SMUD CAMPUS OPERATIONS SINGAPORE CASE STUDY

10

11 DOE / NREL: Client Haselden Construction: General Contractor RNL: Architecture, Interiors, Landscape, Lighting Stantec: MEP Engineering, Energy Modeling KL&A: Structural Engineering Martin/Martin: Civil Engineering AEC: LEED, Daylight Modeling, Commissioning Namaste Solar: Solar Consultant

12 Federal Office Building 222,000 SF 822 Occupants $64M Firm Fixed Price $57.4M Construction Complete June 2010

13

14

15 Project objectives Absolute energy target Risk / reward / control balance Substantiation Incentive award fee

16 I want a green building Design a LEED <rating> building Design a building to use 30% less energy than ASHRAE Design a building to use less than 25,000 BTU/sqft Design a net zero energy building

17 PREDICTIVE MODELING (Absolute energy target) VERSUS COMPLIANCE MODELING (Percent better than ASHRAE 90.1)

18 New Buildings Institute Energy Performance of LEED for New Construction Buildings (March 2008)

19

20

21

22

23

24 Heifer International Center NVCI Cancer Research Kitsap County Admin Building The Signature Centre Great River Energy Headquarters Ft. Carson Brigade/Battalion HQ NREL Research Support Facility International Fund for Animal Welfare Omega Center Chevron Office Bremerton BEQ University of Denver Sturm College Naval Facilities Ft. Lewis Barracks and Dinning Dillard University EPA Region 8 Headquarters Fernald Visitors Center Commerce City Civic Center Leo Trombatore Office ASU School of Journalism ASU College of Nursing & Health Federal Reserve Bank of Kansas City Leprino Building San Joaquin Admin Building Las Cruces Courthouse NASA Sustainability Base Applied Research & Development Aircraft RSF National Association of Realtors Oregon Sustainability Fort Bragg Forces Command HQ San Joaquin Comm. College DC Federal Building Cost per Square Foot $600 $500 $400 $300 RSF Cost: $259/SF Average Cost: $334/SF $200 $100 $- Other Certified Silver Gold Platinum Source: DBIA Project Database

25

26 Net Zero Site Energy Building Net Zero Source Energy Building Net Zero Energy Emissions Building Net Zero Energy Cost Building

27 Demand-Side: Reduce site energy though low-energy building technologies On-Site Supply: Renewable energy within building footprint Renewable energy within site Off-Site Supply: Renewable energy off site to generate energy on site Purchase off-site renewable energy sources

28 Baseline Energy Use Passive Design Reduced Energy Use

29 Efficient Systems Dramatically Reduced Energy Use Renewable Energy

30

31

32

33 Energy driven form 115,000 SF Conventional form 65,000 SF

34

35 <30% Window to Wall Ratio >70% Window to Wall Ratio

36

37

38 Ambient lighting with daylight sensors for 25 fc Ambient daylight 6 watt task light 50 fc

39

40

41

42

43

44

45

46

47

48

49

50

51 Source: NREL, Reducing Plug and Process Loads for a Large Scale, Low Energy Office Building: NREL s Research Support Facility

52

53

54

55

56 RSF Staff Parking RSF RSF II RSF Visitor Parking

57 New Building = 35 kbtu/sf/year Leased Building = 133 kbtu/sf/year Annual Energy Savings = $275,590

58 20 Year NPV = $4.4M or $20/SF 30 Year NPV = $6.0M or $27/SF

59

60

61 Credit: Chad Lobato/NREL Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Model RSF PV Monthly EUI (kbtu/ft 2 ) Annual EUI (kbtu/ft 2 ) Measured Versus Modeled Monthly and Cumulative EUI The PV system is sized for an annual EUI of 35.1 kbtu/ft PV Data Center Mechanical Systems Plug Loads Lighting Heating Cooling Model Annual EUI RSF Annual EUI October 2010 November 2010 December 2010 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September 2011 Note: The annual EUI values are demand side values and do not include the 61 Innovation for Our Energy Future

62 Power Density (W/ft 2 ) October 2010 September 2011 Lighting Power Density Model Average October 2010 November 2010 December 2010 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September Credit: Chad Lobato/NREL Time of Day Innovation for Our Energy Future

63 Power Density (W/ft 2 ) 0.65 October 2010 September 2011 Plug Load Power Density Credit: Matthew Luckwitz/NREL Credit: Chad Lobato/NREL Time of Day Innovation for Our Energy Future Model Average October 2010 November 2010 December 2010 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September 2011 Note: The elevators are included in the plug loads

64

65 WHAT ARE THE BEST PRACTICES?

66 1 Performance-based procurement Predicting energy use Passive architecture and load reduction Low energy active systems Integrated renewable energy Zero energy operation

67 WHO IS PURSUING NET ZERO ENERGY?

68