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EcoRated New Manufactured Homes. Program Overview, Energy Savings, and Costs and Updated Energy Star Manufactured Home Savings and Costs March 2 nd , 2009 Regional Technical Forum. Regional Technical Forum Portland Oregon March 2, 2009. Insulation Ceiling R40 vaulted R49 flat

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ecorated new manufactured homes

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

slide2

Regional Technical Forum

Portland Oregon March 2, 2009

slide3
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

slide4
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.
slide5

do the math!

Begin with energy efficiency,

+ construction practices

+ water efficiency

+ resource efficiency

+ indoor air quality

+ retailer & homeowner

= eco-rated

slide7
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

energy savings method and assumptions
Energy Savings Method and Assumptions
  • Method: SEEM Runs
  • SEEM Input Assumptions:
energy savings assumptions cont
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.
cost assumptions
Cost Assumptions
  • EcoRated costs based on conversations with manufacturers
measure life inputs
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
the end
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
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