Michigan Homebuilders Training: Integrating Building Codes, ENERGY ...

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file time: 2008-02-16

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Michigan Homebuilders Training: 
Integrating Building Codes, ENERGY STAR, and Building America  

Case Study Documenting an Integrated Workshop Approach - 2007

 
 
 
 
 

Overview 

Background Partners Workshop Results Recommendations & Conclusions  
 
 
 
 

MI Homebuilders Training - Background 

Goal of integrating the following subjects for Michigan Homebuilders:

Michigan Uniform Energy Code ENERGY STAR homes & products Federal tax credits for new home construction Building America best practices  
 
 
 
 

MI Homebuilders Training - Background 

Project Objectives:

Emphasize the state residential energy code in relation to other building standards Increase # of builders building ENERGY STAR homes & using ENERGY STAR products Increase # of homes built to the federal tax credits standard Increase use of Building America best practices  
 
 
 
 

MI Homebuilders Training - Background 

Streamlined Project Objectives:

De-mystify the various construction standards (state code, ENERGY STAR, LEED for Homes etc.) Demonstrate that energy efficient homes can be constructed in a cost-effective manner beneficial to builders and homeowners  
 
 
 
 

MI Homebuilders Training - Background 

Methodology:

Workshop format: 6 half-day Michigan sessions Presentation showing 3 different home styles achieving: 1) state energy code compliance, 2) ENERGY STAR certification & 3) federal tax credit qualification  
 
 
 
 

MI Homebuilders Training - Background 

Methodology:

Presentation also included Building America best practices ENERGY STAR products were emphasized throughout Michigan focus with all construction examples  
 
 
 
 

Energy Use Comparison

 
 
 
 
 
Exterior 100layer of XPS insulating sheathing seams taped  

Air Flow Retarder System

 
 
 
 
 

MI Homebuilders Training: Partners 

Michigan Energy Office plus:

Michigan Energy Demonstration Centers (nonprofit education organizations) Building America partner Venture, Inc. Home Energy Raters (workshop presenters) Homebuilders Association Professional Program Evaluator  
 
 
 
 

MI Homebuilders Training: Results 

7 sessions completed Geographic spread: Detroit area (2 sessions), Ann Arbor (2 sessions), Lansing, Grand Rapids, Marquette 167 participants Pre-surveys completed before the sessions (assess current building practices & knowledge)  
 
 
 
 

MI Homebuilders Training: Results 

Post-surveys completed after the session (gather info. on participant reactions to the workshops) Home Energy Raters provided practical info. to building professionals  
 
 
 
 

MI Homebuilders Training: Results 

Evaluation included:

Assessment of the operation - delivery of the program (review of project materials 00interviews with project managers and staff) Estimations of potential energy savings as a result of the project (qualitative methods)  
 
 
 
 

MI Homebuilders Training: Results 

Evaluation:

Program was well administered Deliverables within budget Despite concentrated delivery time, sessions were completed as planned 00ront-end00presentation preparation from SEO was helpful  
 
 
 
 

MI Homebuilders Training: Results 

Evaluation:

Workshop presenters exhibited good experience in the field Project managers attended sessions to monitor content quality  
 
 
 
 

MI Homebuilders Training: Results 

Attendee breakdown:

113 00direct housing construction ties 54 00related professionals (gov., nonprofit, utilities etc.)  
 
 
 
 

MI Homebuilders Training: Results 

Pre-survey results:

Previously built an ENERGY STAR home: 26% (8% built more than 1) Had a HERS rating on their home: 30% (8% had more than 1) Always or usually offer extra EE options: 62%  
 
 
 
 

MI Homebuilders Training: Results 

Pre-survey results:

Are very familiar with the Michigan energy code: 25% Are somewhat familiar with the Michigan energy code: 50% Know the requirements of the federal tax credit for new homes: 23% Applied for a federal tax credit: 19%  
 
 
 
 

MI Homebuilders Training: Results 

Pre-survey results:

Relatively low pre-existing level of knowledge & experience w/ advanced EE construction (suggesting even lower levels of knowledge from other builders)  
 
 
 
 

MI Homebuilders Training: Results 

Post-survey results:

Positive assessment of workshops from attendees Purpose of training was clear: 93% Met or exceeded expectations: 96% Very useful or fairly useful: 97% Learned new building science info: 86%  
 
 
 
 

MI Homebuilders Training: Results 

Post-survey results:

Most important finding: 95% said they would apply info learned to their own building practices  
 
 
 
 

MI Homebuilders Training: Results 

Energy Savings Impact:

Training programs present challenges for estimating energy savings impact Hypothetical scenario: 陆 of the attendees responsible for 3 additional ENERGY STAR rated homes following the training (conservative assumption)  
 
 
 
 

MI Homebuilders Training: Results 

Energy Savings Impact:

Energy savings per home: estimates provided from HERS presenters with software modeling Average estimated annual energy cost savings per medium sized home built to ENERGY STAR standards: $700 83 attendees X 3 homes X $700 = $174,300 annual savings  
 
 
 
 

MI Homebuilders Training: Results 

Energy Savings Impact:

Conservative estimation suggests 1 year of resulting energy savings is more than twice the project budget cost ($74,000) Translates to about 陆 year payback period for the project Assuming a 40 yr. lifetime of a new home, lifetime energy savings are approx. $7 million at current energy prices 00exceeding project costs by almost 100 fold  
 
 
 
 

MI Homebuilders Training: Results 

Energy Savings Impact:

This all assumes no 00pill-over00 savings potentially resulting from the training beyond the 3 new homes per 83 attendees  
 
 
 
 

MI Homebuilders Training: Conclusions 

In the absence of actual impact evaluation results, a conservative projection of energy savings far exceeds the project costs HERS providers/workshop presenters provided valuable insights to evaluator regarding: perceived marketplace obstacles effective EE features to promote to customers, and suggestions of how to increase the # of ENERGY STAR rated new homes  
 
 
 
 

MI Homebuilders Training: Recommendations 

The evaluation suggested this type of training approach should be reproduced on a larger statewide scale reaching more builders Couple the training effort with utility sponsored financial incentives to builders and/or home buyers Concentrate future training sessions during builder00 off-season Diversify future training to accommodate builders new to the EE concept and seasoned EE experienced builders Consider having the program pay for one home energy rating for each builder attending a workshop  
 
 
 
 

MI Homebuilders Training: Conclusions 

Project was well-designed & delivered w/ responsible administration & good quality control Existing level of EE knowledge of builders attending was fairly low 00suggesting builders who did NOT attend would feature a lower level of EE knowledge Attendees rated the training very high Using conservative assumptions, the project will likely result in total energy savings far in excess of the costs of the project  
 
 
 
 

Finished Cape Cod

 
 
 
 
 

Michigan Homebuilders Training: 
Integrating Building Codes, ENERGY STAR, and Building America

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