NEEM Program Brochure (pdf)
The Northwest Energy Efficient Manufactured Housing Program (NEEM) brochure provides a quick overview of what the program offers and how important it is for the buyers of manufactured homes to make sure they include the ENERGY STAR® option in their new homes. Versión en Español

ENERGY STAR® Manufactured Homes Utility Incentives List (pdf)
Utilities offer incentives! This list shows incentives offered by utility companies throughout the region served by manufactured home builders that participate in the NEEM program. While we strive to keep this list up to date, be sure to check with your utility to confirm that incentives are available. If your utility is not on the list, be sure to call them and ask why not.

Not sure what utility serves your location? Use our Rebate Finder tool and enter your ZIP code to find out about your local utility incentives, or look up utilities by ZIP code with these lists:

Note that some ZIP codes are served by more than one electric utility. If your home is heated with natural gas, please look for your gas utility on the utility participation list, above.

Northwest States Electric Utility Service Areas Map (pdf)
What utility serves my location? This map shows utility service territories throughout the Pacific Northwest. Individual utility service territories are approximate. If you live in Oregon, you can use this great tool from the Oregon Department of Energy: https://www.oregon.gov/energy/energy-oregon/Pages/Find-Your-Utility.aspx

Step Up to ENERGY STAR With NEEM+PLUS (pdf)
ENERGY STAR With NEEM+PLUS is the most energy efficient manufactured home option package available anywhere in the USA

Investing in an ENERGY STAR home (pdf)
With a mortgage, your ENERGY STAR Investment annually returns around 8%.
If you pay cash for your home, your investment in efficiency yields 13% per year.

Technical Specification Comparison
Comparison between construction requirements to earn NEEM ver. 1.1, ENERGY STAR, and ver. 2.0, ENERGY STAR with NEEM+

NEEM+ Callout Cards (pdf)
NEEM+ goes beyond ENERGY STAR to deliver the most energy efficient manufactured home in the country. This series of callout cards explains the benefits of upgrading to ENERGY STAR with NEEM+.

Your Fresh Air Ventilation System (pdf)
Your home is equipped with a ventilation system to remove pollutants and odors that build up. Ventilating your home helps prevent damage to walls, ceilings, and floors as well as mold and mildew problems.

Heat Pump Comparison Table (pdf) Your home comes with a furnace, because that is what can be installed at the factory and shipped to your site. Once the home is set, you have options for adding cooling and dramatically lowering heating bills by adding a heat pump to the furnace.

Heat Pump Fact Sheet (pdf)
Heat pumps are a smart choice for heating and cooling in manufactured homes, offering energy savings, year-roynd comfort, and environmental benefits. Don’t settle for just an air conditioner.

Factory Heat Pump Preparation Guide (pdf)
Simplify and lower the cost of onsite heat pump installation and prevent unnecessary damage to the home’s floor system during installation by following four steps outlined in this guide.

2004 Northwest Energy Efficient Manufactured Home Program
In-Plant Inspection Manual (pdf)
This manual provides comprehensive coverage of the NEEM Program's technical underpinnings. It contains the technical specifications, home qualification methods, supporting technical illustrations, and NEEM Program inspection protocols.

2023 NEEM Heat Pump Preparation Specifications, Proposed (pdf) These specifications are intended to be inserted into the Northwest Energy Efficient Manufactured Housing program (NEEM) specifications to address factory preparation to facilitate best practices for heat pump installation on site.

Super Good Cents Heat Loss Reference Volume 3 (pdf)
This manual provides the original assessment of the thermal performance of structural components (floors, ceilings, walls, and windows) used in the NEEM Program. U-factors for these components are calculated using the ASHRAE parallel heat loss method adapted to the construction practices found in the Pacific Northwest manufactured home industry.

Summary of 2006 NEEM Manufactured Homes: Field Data and Billing Analysis, 2009 (pdf)
This report, released in 2009, is the fifth periodic field study of NEEM-certified manufactured homes built and sited in the Pacific Northwest. The homes in this study were built and sited during 2006. The sample is meant to be representative of both the region as a whole and of each state.

Field Evaluation of New Manufactured Homes in the Pacific Northwest (pdf)
This paper, a ACEEE Summer Study presentation, provides an overview of the findings from the report, Summary of 2006 NEEM Manufactured Homes: Field Data and Billing Analysis, above.

Summary of SGC Manufactured Home Field Data, 2004 (pdf)
This report represents the fourth field study of energy-efficient manufactured homes sited in the Pacific Northwest. In this study, 105 homes built and sited during 2001 and 2002. The sample was meant to be representative of the homes built under the NEEM Program, both at the state and regional levels.

Field Evaluation of New Manufactured Homes in the Pacific Northwest (pdf)
This paper was originally presented at the ACEEE Summer Study conference. It provides an overview of the findings from Summary of SGC Manufactured Home Field Data (2001-2), a field study of 105 NEEM-certified manufactured homes, sited in the Pacific Northwest during 2001 and 2002.

Summary of SGC Manufactured Home Field Data
(1997-98 Sitings in Idaho and Washington), 2000 (pdf)
This study, performed in the year 2000, is the third field study of energy-efficient manufactured homes built and sited in the Pacific Northwest. It presents the findings from field studies of manufactured homes build and sited during 1997-1998. The methodology was developed with the protocols used in the Manufactured Housing Acquisition Program Analysis of Program Impacts as its basis.

Manufactured Housing Acquisition Program
Analysis of Program Impacts, 1995 (pdf)
This report summarizes the performance of a sample of manufactured homes built to energy-efficiency standards in the Pacific Northwest. It is the second such field study performed in the region, and it is the first study of homes built after widespread adoption of energy efficiency specifications by all manufactured home builders in the Pacific Northwest. The Manufactured Housing Acquisition Program (MAP) extended Model Conservation Standards (MCS) to electrically-heated manufactured homes in the Pacific Northwest. Bonneville Power Administration (BPA) paid incentive payments to all Northwest manufacturers. The program paid out incentives to about 50,000 homes between April, 1992 and July, 1995. This report studies homes sited during the first year of the program. The study also evaluated energy savings from the program. Utility bills were obtained for 162 of the study homes. A variable-base degree-day analysis and an additional billing analysis were used to evaluate utility bills.

Manufactured Conservation:
Transforming New Manufactured Homes in the Pacific Northwest (pdf)
This paper, originally presented at ACEEE Summer Study, provides a summary of the Manufactured Housing Acquisition Program Analysis of Program Impacts report, above.

A Road Map for Success: How Northwest Manufactured Housing Conservation Efforts Revolutionized an Industry, 1993 (pdf)
This report chronicles how the energy efficiency community in the Pacific Northwest became involved with the manufactured home builders in the region. It describes the studies, discussions, negotiations and other interactions that eventually led to the Manufactured Housing Acquisition Program, the precursor to today's NEEM Program.

Effect of Mastic on Duct Tightness in Energy Efficient Manufactured Homes (pdf)
This paper illustrates how the NEEM Program uses the findings from periodic field studies of homes built under the program to develop process improvements in partnership with the industry.

High Performance Manufactured Homes
Field and factory results from 8 demo homes built in 6 factories, 2016 (pdf)
This paper, originally presented at ACEEE Summer Study, provides an overview of the findings from a multi-year research and demonstration effort, the High Performance Manufactured Housing Project, aimed at discovering how much further energy efficiency could be taken in manufactured housing production facilities, without severely impacting the production process or necessitating factory retooling. This project was undertaken by the NEEM Program and six factories that particpate in the NEEM Program, with support from Bonneville Power Administration, Building America, Northwest Energy Efficiency Alliance and Ecotope.

Northwest Energy Efficient Manufactured Housing Program High-Performance Test Homes, 2015 (pdf)
The NEEM Program team worked as part of the US Department of Energy's Building America Partnership for Improved Residential Construction (BA-PIRC) research team. BA-PIRC provided support for NEEM research into a High Performance Manufactured Home (HPMH) specification and prototype home construction. This report covers the third and final phase of the project, the construction of eight HPMH prototype homes.

Northwest Energy Efficient Manufactured Housing Program: High Performance Manufactured Home Prototyping and Construction Development, 2013 (pdf)
The NEEM Program team worked as part of the US Department of Energy's Building America Partnership for Improved Residential Construction (BA-PIRC) research team. BA-PIRC provided support for NEEM research into a High Performance Manufactured Home (HPMH) specification and prototype home construction. This report covers the second phase of the project which includes the development of factory construction processes that achieve the energy efficiency goals of the previously developed HPMH specifications.

Northwest Energy Efficient Manufactured Housing Program Specification Development, 2013 (pdf)
The NEEM Program team worked as part of the US Department of Energy's Building America Partnership for Improved Residential Construction (BA-PIRC) research team. BA-PIRC provided support for NEEM research into a High Performance Manufactured Home (HPMH) specification and prototype home construction. This report covers the first phase of the project which includes the identification of measures and the development of HPMH performance specifications.

High Performance Manufactured Home Project: Final Project Report, 2012 (pdf)
The NEEM Program team partnered with Bonneville Power Administration (BPA) to develop specifications for a highly energy-efficient manufactured home that could be built in existing manufactured home plants without requiring major re-tooling or adversely impacting the production process. Ideally such a home could offset its energy use on an annual basis through power generated by a photovoltaic array that could fit on the roof. This report presents the project's findings.

Field Monitoring of Two New Manufactured Homes in the Pacific Northwest, 2011 (pdf)
In collaboration with Pacific Northwest National Labs (PNNL), Northwest Energy Works (NEW) examined the performance of a hybrid zonal electric heating system utilizing a ductless mini-split heat pump to a purely electric resistance zonal heating system in two new manufactured homes built to aggressive efficiency standards. The scope of this project was to recruit two manufactured home sites, install and commission in the factory one single head ductless heat pump, perform home energy audits at both sites, install meters, collect electric use, temperature and relative humidity data, analyze monitoring data and write a final report of findings.