EcoRated New Manufactured Homes

1. EcoRated New Manufactured Homes Program Overview, Energy Savings, and Costs and Updated Energy Star Manufactured Home Savings and Costs March 2nd, 2009 Regional Technical Forum

2. Regional Technical Forum Portland Oregon March 2, 2009

3. Insulation Ceiling R40 vaulted R49 flat Wall R21 2x6 walls no trade off Floor R33 batt R38 blown Ducts R8 in-floor and crossover each tested in plant Furnace 90% AFUE WindowsU<0.32 unlimited area weighted average Infiltration Envelope leakage < 5.0 ACH50 *Weighted average =U Value 1 x area + U Value 2 x area/Total window area

4. Lighting: ENERGY STAR®lighting bulbs 50% Appliances: ENERGY STAR®dishwashers, refrigerators, laundry if builder supplied Quality Assurance: • Energy Star and Eco-rated plant certification design optimization and approval • Training of in-plant personnel, retailers, local installation inspectors and installation crews • Web based tracking and documentation • Each home duct tested in the plant standard 6% X floor area @ 50 Pa/test record in home • Each home is inspected online and receives a certificate signed by a third party inspector. • In plant quality assurance quarterly visits with a report sent to GM, QC and IPIA • Problem homes dispute resolution (phone support and field testing) • Utility program design and implementation – 65 NW utilities offer incentives • Building science research and testing (peer reviewed and published) • Evaluation and adoption of new technology and systems (demonstration projects) • RTF sponsored statistically significant random samples of homes field tested and inspected.

5. do the math! Begin with energy efficiency, + construction practices + water efficiency + resource efficiency + indoor air quality + retailer & homeowner = eco-rated

7. Conclusions Eco-rated program provide cost effective savings for the Consumer Lighting specifications provide most of the electric savings Furnace upgrade provides most of the gas savings Improves NEEM specifications to be similar to new Oregon Energy Code, Energy Star site-built Helps industry at a time of need Eco-rated consistent with proposed changes with other regional codes

8. Energy Savings Method and Assumptions • Method: SEEM Runs • SEEM Input Assumptions:

9. Energy Savings Assumptions (cont) • Dishwasher (31 kWh/year) • Baseline = 2010 Fed Min Std (355 kWh/yr; 6.5 gal/cycle)* • Upgrade = 2009 Energy STAR Std (324 kWh/yr; 5.8 gal/cycle)** • Included Water/Wastewater Plant Energy Savings • DHW (117 kWh/year) • Used gross savings because SEEM modeled space heat/cool interaction • Refrigerator (64 kWh/year) • Used gross savings • not modeled in SEEM, however, modeled “appliance” (22) and leftover DHW (12) savings are within the error • Lighting (830 kWh/year) • Used gross savings because SEEM modeled space heat/cool interaction • *6th Plan assumes baseline is 348 kWh/yr, with a reverse engineered water use of 5.3 gal/cycle. • ** Standard goes into effect August 11th, 2009.

10. Cost Assumptions • EcoRated costs based on conversations with manufacturers

11. Measure Life Inputs • Shell and HVAC measure savings are combined, so used a value of 20 years. • Manufactured Home new construction shell measures are typically 45 years • HVAC measures are typically 20 years

12. Results

13. Results

14. Results

15. The End • Questions? • Recommended Changes? • RTF approval of program requirements, energy savings, and costs for new EcoRated manufactured homes? • RTF approval of updated energy savings and costs for new Energy Star manufactured homes? • Next steps • Incorporate any RTF-recommended changes • BPA to review and approve savings and costs and decide willingness to pay • Add EcoRated measures to the PTR

16. Thank You