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Houston Green Building Roadmap Richard Morgan Austin Energy.

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Presentation on theme: "Houston Green Building Roadmap Richard Morgan Austin Energy."— Presentation transcript:

1 Houston Green Building Roadmap Richard Morgan Austin Energy

2 Green Building in Austin Started in 1991 as single family homes rating system. Evolved from Austin Energy Star Homes program- alternate path to energy code compliance Municipal and commercial buildings in 1995 Multi-family rating system in 1999 June 2000 Council requires LEED Silver for Municipal bond projects Manage it Green consulting group begun in 2002

3 Current State In the beginning all private sector compliance was voluntary 1999 MOU with Citys Affordable Housing Dept. to require compliance for housing receiving incentives from COA 2003 requirement for buildings zoned DMU or CBD 2004 use of GB as trade off for PUDs or variances

4 Energy Code GB brings new energy codes to council for adoption Review new IECC versions for efficiency improvements and local needs Develop local amendments to meet Austins needs Review with stakeholders before taking to council IECC 2006 w/local amendments 19% more efficient than 2000 IECC w/local amendments – Based on 2270 sq. ft. typical home-2462 kWh per year reduction

5 Single Family GB Locally developed rating tool Currently using v.8.0 of SF rating tool 1 to 5 star rating- 1 star = basic GB, 5 star highest possible, 7,000+ homes, 35 at 5 star Custom and volume builders, high end to affordable

6 SF basic requirements 14 SEER HVAC efficiency Submittal of Manual J for HVAC sizing Duct leakage testing Air barriers as per Energy Star Minimum of 5 fluorescent lights 2 H.E. Toilets 40 points from optional menu

7 SF Process Builder submits rating spreadsheet and Manual J Staff review for obvious discrepancies Staff inspection at rough mechanical Duct testing performed by third party Staff final inspection Certification

8 Multi Family GB Locally developed rating tool Applies to projects with 3 floors of residential or less Apartments to high end condos 50 projects completed-6,365 units, 5.5 million sq. ft. 44 projects currently under review, 4,270+ units

9 MF requirements Energy Star labeled windows or exceed COA Energy Code envelope performance by 15% Testing/commissioning of HVAC units All showerheads 1.8gpm or exceed EPAct indoor baseline by 15% Divert 50% by weight construction debris and waste

10 Commercial GB Locally developed rating tool or LEED Separate/similar tool developed for AISD bond projects MF projects permitted as commercial, rated as commercial 46 projects complete, 1.32 million sq. ft. 100 projects under review, 8.6 million sq. ft.

11 Commercial Requirements Commissioning Plan, Verification, Report submitted Energy Star Qualified Roof Exceed COA lighting and envelope energy requirements by 15% Divert minimum 50% construction waste and debris from landfill No grandfathered water quality compliance

12 Commercial Process Owners rep. submits Request for Participation Staff assigned to project and participate as sustainability consultants – Goal setting – Plan and spec review and recommendations – Building energy simulation review Construction monitoring Documentation reviews Certification

13 Key Strategies Professional education – Monthly seminars – Conferences and trade shows – Web based resources Marketing – Create demand for GB from the public – Acknowledge exceptional buildings and teams – Promote program as go to source for GB issues

14 Key Strategies Stakeholder involvement – Participation in trade associations – Education on their turf – Participate in other groups events

15 Market Transformation Work with the leaders, if everyone does it-it is not GB When measures become accepted, raise the bar Use the code to bring the rest of the industry up to the level of the leaders

16 Results Single Family – FY 06 1049 ratings-21% of new SF homes in service area – 874 kW of demand eliminated- 0.7 kW per (demand is power plant capacity not needed) – 1,469,000 kWh savings to consumers 1400 kWh per – 936.83 Tons CO2 not emitted – 72,913,892 gallons water saved, 69,508 per

17 Results Commercial Medical Office Building- 3 Star AE GB – 129,691 Sq. Ft. – Demand Savings 462 kW – Energy savings 1,370,719 kWh – CO2 reduction 874.2 tons – Building water 770,975 gallons- 28% – Irrigation water (July) 103,954 gallons- 75% – Construction waste 303.9 tons diverted 50%

18 Results Commercial Grocery – 4 Star AE GB – 93,000 sq. ft. – Demand savings 172.5 kW – Electric energy 1,141,179 kWh – Gas energy 730,000 CCF – 989.4 Tons CO2 (gas & electric) – Building Water 535,308 gallons 36% – Irrigation water 67% – Construction waste 127 tons 81%

19 Results Multifamily Apartment building, 240 units, 196,000 sq. ft. – 2 star AE GB rating – 157 kW demand reduction Live/Work Condos, 29 units, 29,467 sq. ft. – 3 star AE GB rating – 57.3 kW demand reduction

20 Total Results FY 2006 Demand Reduction- 14,755 kW Energy Saved24,974 mWh $ value of energy $2,222,686 CO2 reduction15,926.8 tons SOx reduction3.04 tons NOx reduction15.36 tons

21 Austin Climate Protection Plan Upgrade energy code to make all single family homes built in Austin by 2015 ZECH Upgrade energy code to make all other construction 75% more efficient than existing code Develop policy/program to require energy use disclosure and upgrades at resale Develop evaluation and recognition program for carbon neutral buildings Continue to upgrade GB standards for projects required to meet program requirements

22 Lessons Learned Be inclusive, all your stakeholders bring something valuable Avoid the bandwagon, no one knows your climate and your buildings better than the people working in your area Be bold, no one will care what you do if you take half measures

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