ࡱ> CE@ABb $jbjb "vT8 Tt|8n^plllllll,̛RElllllll,l ll *lS x v k 2<ns,88$J\R488\RAn Image of a Water heater in front of a bar graph measurement being cut in half. New Technologies New Savings Water Heater Market Profile | 2009 U.S. Department of Energy Executive Summary This document is designed to help ENERGY STAR partners understand the unique savings potential of residential water heaters and develop effective water heater programs. Revolutionary changes in water heater technology coupled with the yearly replacement of roughly one out of every 13 water heaters create a tremendous opportunity to increase energy efficiency in the residential sector. With most American households containing conventional water heaters barely more efficient than the ones sold 20 years ago, energy efficiency program sponsors can achieve significant, cost-effective savings by adding ENERGY STAR qualified water heaters to their program portfolios. Water heating is the second largest energy end use in homes, behind space heating and cooling. It accounts for 16.8 percent of residential energy consumption and can cost a household anywhere from $200 to $600 a year. Almost every U.S. household has at least one water heater, and many of them are old. About 27 million households have water heaters that are more than 10 years old and are therefore nearing the end of their functional lives. Each year, about 8 percent of households replace their water heaters. Between 7 million and 7.8 million water heaters are replaced in the United States annually. Another 1.2 million to 2 million units are installed in new homes. ENERGY STAR qualified water heaters are much more efficient than standard technologies. Most units sold today just meet the current Federal standards, which took effect in 2004. ENERGY STAR qualified models consume 7 to 55 percent less energy than standard-efficiency models and can save a household $30 to $300 a year on its energy bills. While ENERGY STAR qualified water heaters are more expensive, consumers will recover the price premium within the products expected lifetime. When installation costs are included, the price premium over standard-efficiency units ranges from a low of about $70 for high-efficiency gas storage models to a high of about $2,500 for solar water heaters. ENERGY STAR qualified water heaters are already widely available. At least 922 gas storage, gas tankless, heat pump, and solar water heater models have already qualified for the ENERGY STAR label. Qualified gas condensing water heaters are expected in 2010. Government incentives will make purchasing ENERGY STAR qualified water heaters more attractive to consumers. Program sponsors can boost savings by leveraging current Federal tax credits for high-efficiency water heaters. In addition, rebates may be available from State governments in some parts of the country due to funding provided through the American Recovery and Reinvestment Act of 2009. Installed Base Residential water heaters supply hot water to almost all of the 79 million single-family homes and approximately 21 million multi-family and manufactured homes in the United States. As some single-family homes contain more than one working water heater, there are approximately 103 million residential water heaters in service nationwide, footnote 1. At least 27 million of these water heaters are more than 10 years old and therefore are nearing the end of their functional lives, footnote 2. Just over half of all homes (53 percent) are served by gas water heaters; most of the rest are served by electric (40 percent). Other energy sources for water heating include fuel oil (used primarily in the Northeast), propane, wood, and solar, footnote 3. Gas is the dominant water heating fuel in the West, Midwest, and Middle Atlantic. Electric water heaters are more common in the East South Central and South Atlantic census divisions and in the Pacific Northwest. Prevalence of Gas Water Heating by Census Division, 2005 Map of the United States showing what proportion of water heaters in each census division is fueled by natural gas. Pacific is 80%. Mountain is 65%. West North Central is 64%. West South Central is 52%. East North Central is 66%. East South Central is 29%. South Atlantic is 25%. Middle Atlantic is 58%. New England is 42%. Source: Analysis by D&R International, Ltd. of micro data from Residential Energy Consumption Survey, Energy Information Administration, 2005. Water heating accounts for 16.8 percent of home energy use, measured at the site, and can cost a household anywhere from $200 to $600 a year, depending on the amount of hot water used and fuel prices, footnote 4. To help control energy consumption, Congress established minimum efficiency standards for water heaters in 1987 based on fuel and capacity. The original standards, which took effect in 1990, required a minimum energy factor (EF), footnote 5. of 0.525 for gas water heaters and 0.864 for electric water heaters with a 50-gallon tank. The current standards, which took effect in January 2004, require a minimum EF of 0.575 for gas water heaters and 0.904 for electric water heaters with a 50-gallon tank. The U.S. Department of Energy (DOE) is developing amended minimum efficiency standards that are expected to take effect in 2013, footnote 6. A water heater will last 10 to 20 years, depending on the type of unit and the hardness of the water. The average age at replacement is 13 years, footnote 7. Thus, most of the installed base has turned over since standards took effect in 1990. About 40 million units in the installed base were manufactured after the January 2004 standards took effect. Another 50 million units were manufactured between 1990 and 2003. The remaining 7 million units pre-date the Federal standards. Most units sold since 1990 have just met the prevailing efficiency standards, footnote 8. U.S. Installed Base by Year of Manufacture Bar graph showing when water heaters currently in service in the U.S. were manufactured. Four million gas and three million electric water heaters manufactured before 1990. 29 million gas and 22 million electric water heaters manufactured from 1990 to 2003. 22 million gas and 17 million electric water heaters manufactured from 2004 to 2009. Note: Secondary water heaters are not included in the installed base in this analysis. Source: Analysis by D&R International, Ltd. of data from Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8. Minimum Energy Factor for a Fifty-Gallon Water Heater Gas Federal Standard Effective 1990 0.525Gas Federal Standard Effective 2004 0.575Gas Federal Standard Effective 2013 TBDENERGY STAR Criteria* 0.62 to 1.2Electric Federal Standard Effective 1990 0.864Electric Federal Standard Effective 2004 0.904Electric Federal Standard Effective 2013 TBDENERGY STAR Criteria* 1.8 to 2.0* Solar water heaters are required to have a solar fraction of at least 0.50. This is equivalent to an energy factor of 1.2 for systems with gas backup and 1.8 for systems with electric backup. Source: Energy Conservation Program for Consumer Products: Energy Conservation Standards for Water Heaters; Final Rule, Federal Register, Jan. 17, 2001 (66 FR 4474). Water Heater Market Annual Shipments Water heater shipments averaged 9.2 million units per year over the last 10 years. The market is evenly split between electric and gas. Electric units have gained market share in recent years because new housing construction was concentrated in the South, where electric water heating predominates. Roughly 80 percent of new units replace old units; the remaining 20 percent are used in new construction. Sales in 2008 totaled 8.2 million units, down 15 percent from the peak in 2004, due largely to contraction in the home construction industry, footnote 9. Water Heater Shipments, 1999-2008 Bar graph depicting the type and number of water heaters purchased each year from 1999 to 2008. The trend shows that almost four million replacement gas water heaters were sold from 1999 to 2003. Since 2003, the replacement gas market has steadily declined to about 3.25 million in 2008. The trend shows that about one million gas water heaters were installed for new construction from 1999 to 2006. From 2007 to 2008, gas water heaters for new constructions have decreased to about 750,000 units per year. The trend shows electric replacement water heaters make up slightly over 3 million water heaters every year. The trend shows that electric water heaters purchased for new construction has remained about 600,000 per year from 1999 to 2007. In 2008, electric water heaters purchased for new construction declined to about 500,000. Electric water heaters made up the following percentages of the entire water heater market: In 1999, 46%. In 2000, 46%. In 2001, 47%. In 2002, 47%. In 2003, 46%. In 2004, 48%. In 2005, 48%. In 2006, 51%. In 2007, 50%. In 2008, 51%. The following is a list of the number of water heaters sold for installation in new homes each year from 1999 to 2008: In 1999, 1,861,000 were sold. In 2000, 1,779,000 were sold. In 2001, 1,701,000 were sold. In 2002, 1,755,000 were sold. In 2003, 1,759,000 were sold. In 2004, 1,912,000 were sold. In 2005, 1,995,000 were sold. In 2006, 2,044,000 were sold. In 2007, 1,555,000 were sold. In 2008, 1,180,000 were sold. Sources: 56th Annual Report: Statistical Review, Appliance Magazine, May 2009, and analysis by D&R International, Ltd. of data from the U.S. Census Bureau on new home construction and placements of manufactured homes. Traditional storage water heaters (tank style) make up about 97 percent of the market. Tankless (also called instantaneous or demand) models are slowly gaining market share, with gas tankless models accounting for 3 percent of all units sold in 2006. All other technologies together accounted for less than 1 percent of the market, footnote 10. Water Heater Market by Fuel and Technology, 2006 Pie chart shows that in 2006 electric storage water heaters made up 49% of the entire water heater market. Gas storage made up 48% of the entire water heater market. Gas tankless models made up 3% of the entire water heater market. Other water heaters made up less than 1% of the entire water heater market. Source: ENERGY STAR Residential Water Heaters: Final Criteria Analysis," U.S. Department of Energy, April 1, 2008. Note: The most recent market data available is from 2006. Manufacture and Distribution A.O. Smith, Rheem Manufacturing, and Bradford White manufacture 88 percent of residential water heaters. More than two dozen companies manufacturer the remaining 12 percent. Rheem leads the market for tankless units, selling more than half of all models. Solar water heaters are sold largely by smaller companies, footnote 11. See  HYPERLINK "file:///Users/edolan/Desktop/Working%20Projects/ES_09JUL-1%2009%20ENERGY%20STAR%20Water%20Heater%20Market%20Profile:Program%20Design%20Guide/Support/www.energystar.gov/waterheaters" www.energystar.gov/waterheaters for a complete list  HYPERLINK "http://www.energystar.gov/index.cfm?fuseaction=estar_partner_list.showPartnerResults&s_code=ALL&partner_type_id=MANUFACTURER&category_id2=WHEAT&country_id=ALL&category_id_list=1%252C2%252C3%252C4%252C5%252C6&resultsperpage=20¤t_sort_column=NAME¤t_sort_or" of ENERGY STAR manufacturer partners, footnote 12. Retailers, wholesalers, distributors, and plumbers make up the water heater distribution chain. Wholesalers and distributors account for half of water heater sales; plumbers buy 87 percent of these, mostly for resale to homeowners. Retailers account for the remainder of water heater sales; homeowners buy 85 percent of these. Together, homeowners and plumbers purchase 86 percent of all water heaters. Commercial property owners, remodelers, and builders buy the remaining 14 percent. Of those purchased by homeowners at retail, almost two-thirds are installed by the homeowner, while plumbers install the rest, footnote 13. Water Heater Manufacturer Market Share, 2006 Pie chart depicting the market share of the major water heater manufacturers. A.O. Smith makes up 37%. Rheem Manufacturing also makes up 37%. Bradford White makes up 14%. Other manufacturers make up 12%. Sources: A Portrait of the U.S. Appliance Industry, Appliance Magazine, Sept. 2007, and A.O. Smith Water Products Company homepage, www.aosmith.com/prod/wpc.htm. . Water Heater Distribution Channels Pie chart showing who purchases water heaters. Fifty percent of water heaters in the United States are purchased through wholesalers and distributors. The other fifty percent are purchased through retailers. Of wholesaler and distributor sales, 44% are to plumbers, 4% to property owners, 1% to remodelers, and 1% to builders. Of retail sales, 26% are to homeowners who install the unit themselves, 16% are to homeowners who have it installed by a plumber, 6% are to property owners, and 2% are to remodelers. Source: D&R International, Ltd. based on interviews with water heater manufacturers. The top three water heater retailers are Sears, The Home Depot, and Lowes. Together, they are responsible for almost 43 percent of retail sales. Among the thousands of wholesalers and distributors nationwide, the three largest are Ferguson, Johnstone Supply, and Winnelson. Some manufacturers sell only to wholesalers, while others sell to retailers and wholesalers. Purchase Drivers Homeowners replace water heaters for three major reasons: 1) the unit fails completely, 2) the performance of the unit becomes unacceptable, or 3) the homeowner decides its time for a new one. In a 2005 survey of consumers in the Northwest who planned their water heater replacement, 43 percent said it was getting old and it was time to replace it before it broke. Another 25 percent said we wanted a more efficient unit, footnote 14 & 15. Reasons for Purchasing a Water Heater Pie chart depicting the motivations for purchasing a new water heater. Planned replacement makes up 30% of the market. Poor performance issues makes up 20% of the market. Complete failure makes up 30% of the market. These three reasons together constitute the replacement market and account for 80% of sales. New construction makes up the remaining 20% of the market. Source: D&R International, Ltd. based on interviews with water heater manufacturers, and Assessment of the Residential Water Heater Market in the Northwest, Northwest Energy Efficiency Alliance, Report #E06-158, July 13, 2006. The factors most likely to influence a consumers water heater selection are fuel type; tank size; warranty; price; and, especially in the case of emergency replacement, speed of procurement and installation. Recommendations from salespeople, friends, or family and the way retailers and plumbers present the options also strongly influence the product choice, footnote 16. Efficiency and Savings ENERGY STAR Criteria The energy efficiency of the installed base is likely to rise steadily, possibly dramatically, over the next 10 years with the arrival of ENERGY STAR qualified water heaters. In April 2008, DOE announced final ENERGY STAR criteria, which apply to five types of water heaters. They range from improved versions of the dominant gas storage design, which cut energy consumption by about 7 percent, to super-efficient technologies that use half the energy of conventional models. The ENERGY STAR criteria, which took effect in January 2009, include minimum requirements for energy efficiency, first hour ratings, warranties, and compliance with certain safety standards. As of August 25, 2009, 922 ENERGY STAR qualified water heater models were on the market. ENERGY STAR Water Heater Criteria High-Efficiency Gas StorageMinimum Energy Factor: 0.62 until August/31/2010; 0.67 thereafterMinimum First Hour Rating** 67 gallons per hourMinimum Warranty 6 years on sealed systemSafety: Compliance with ANSI Z21.10.1/CSA 4.1Whole-Home Gas TanklessMinimum Energy Factor: 0.82Minimum First Hour Rating** 2.5 gallons per minute at a 77 Fahrenheit riseMinimum Warranty 10 years on heat exchanger and 5 years on partsSafety: Compliance with ANSI Z21.10.1/CSA 4.1 or ANSI Z21.10.3/CSA 4.3, depending on burner sizeGas CondensingMinimum Energy Factor: 0.8Minimum First Hour Rating** 67 gallons per hourMinimum Warranty 8 years on sealed systemSafety: Compliance with ANSI Z21.10.1/CSA 4.1Heat PumpMinimum Energy Factor: 2.0Minimum First Hour Rating** 50 gallons per hourMinimum Warranty 6 years on sealed systemSafety: Compliance with UL 174 and UL 1995SolarMinimum Energy Factor: 0.50 Solar Fraction*Minimum Warranty 10 years on solar collector, 6 years on storage tank, 2 years on controls, and 1 year on piping and partsSafety: OG-300 certification from SRCCNotes: * Based on the Solar Rating and Certification Corporations (SRCC) conversion formula: Solar Fraction = 1 (Energy Factor/Solar Energy Factor), assuming a 0.6 or 0.9 energy factor for gas or electric backup, respectively. ** The first hour rating is the amount of hot water in gallons the heater can supply in the first hour starting with a tank full of hot water. The American National Standards Institute (ANSI) assists other organizations in the development of safety standards for many different appliances, including gas water heaters. The Z21.10.1/CSA 4.1 standard applies to water heaters that burn at 75,000 BTU per hour or less and sets guidelines for safe operation. Gas water heaters with burners that operate at over 75,000 BTU/hour must comply with the Z21.10.3/CSA 4.3 standard. Electric water heaters, such as heat pump water heaters, are tested under Underwriters Laboratories (UL) 174. This standard is a set of guidelines for proper functioning and design of electric water heaters. SRCCs OG-300 standard outlines minimum quality and operational requirements for solar water heaters. Profiles of ENERGY STAR Water Heater Technologies High-Efficiency Gas StorageIllustration of high-efficiency storage gas water heaterInnovationsImproved insulation, more effective heat traps, less burner waste, less fuel in the combustion reactionEnergy Consumption242 therms/year, 7% less than standard storage models (224 therms/year, 14% less than standard storage models starting in September 2010) AdvantagesEasy and inexpensive upgrade from standard-efficiency units; same methods, size, hook-upsDisadvantagesHigher operating costs relative to other ENERGY STAR qualified modelsAvailability320 models as of August 25, 2009Whole-Home Gas TanklessIllustration of whole-home gas tankless water heater.InnovationsFlow-sensor-activated heating mechanism, improved venting, no standby lossesEnergy Consumption183 therms/year, 30% less than standard storage modelsAdvantagesProvides continuous delivery of hot water; takes up less space because there is no storage tankDisadvantagesHigher installation costs (two to four times greater than for conventional storage models); often requires a wider gas supply line and a larger vent than a typical gas storage model, which can make changing from a tank to a tankless system in an existing home difficult in some casesAvailability440 models as of August 25, 2009Gas CondensingIllustration of gas condensing water heater.InnovationsCaptures more heat from combustionEnergy Consumption187 therms/year, almost 30% less than standard storage modelsAdvantagesSimilar size as conventional storage modelsDisadvantagesMay require the installation of a powered vent and/or a condensate drain, making emergency replacement of a standard model with this type difficult in some casesAvailabilityExpected in 2010SolarIllustration of solar water heater collector.InnovationsUses the suns energy to heat water Energy Consumption130 therms/year or 2,429 kWh/year for backup, both 50% less than standard storage models AdvantagesVisible indication of ones commitment to reducing energy consumption; some models can work well in overcast conditions and operate in temperatures as low as -40 fahrenheit DisadvantagesHigh initial cost; requires the use of a backup gas or electric water heater, usually a conventional storage model; may require more frequent maintenance Availability160 models as of August 25, 2009Heat PumpIllustration of heat pump water heater.InnovationsInstead of generating heat, uses electricity to move heat from surrounding air to the waterEnergy Consumption2,195 kWh/year, 55% less than standard storage modelsAdvantagesCools and dehumidifies the space in which its installed, a benefit during the cooling season, especially in more humid climatesDisadvantagesInstallation is complicated and requires a trained professional; requires a condensate drain and periodic air filter cleanings; cools and dehumidifies the space in which its installed, a disadvantage during the heating season if installed in conditioned spaceAvailability2 models as of August 25, 2009 Note: More detailed profiles of the five technologies are included in DOEs 2009 ENERGY STAR Water Heater Partner Resource Guide. National Savings Potential Revolutionary changes in water heating technology coupled with the yearly replacement of roughly one out of every 13 water heaters create a tremendous opportunity to increase energy efficiency in the residential sector. ENERGY STAR qualified water heaters currently account for only 6 to 7 percent of sales and less than 1 percent of the installed base, footnote17. If all homes had ENERGY STAR qualified models, the United States could save 1 billion to 6.8 billion therms, 98 billion to 107 billion kWh, and $12 billion to $22 billion, depending on technology choices, footnote18. This is 1.16 to 1.85 quadrillion BTU per year of primary energy, a 40 to 64 percent savings, footnote 19. Energy Savings Potential from ENERGY STAR Water Heaters Bar graph depicting the energy savings potential of ENERGY STAR water heaters. The first bar demonstrates that without any energy savings, about 2.8 quadrillion BTUs (quads) of primary energy are expended annually on domestic water heating nationwide. In a low-savings scenario, the ENERGY STAR water heater program can cut that amount by 40% or 1.16 quads. In a high-savings scenario, that number can be cut by 64% or 1.85 quads. Note: Assumes 52.5 million gas homes acquire high-efficiency gas storage units (EF=0.62) in the low savings scenario and solar water heaters with gas backup in the high savings scenario. Assumes 40.3 million electric homes acquire solar water heaters with electric backup in the low savings scenario and heat pump water heaters in the high savings scenario. Estimates of primary energy savings potential assume a 3.18 site-to-source conversion factor for electricity. Source: Analysis by D&R International, Ltd. using data from Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8 and Annual Energy Outlook 2009, Energy Information Administration, Table 4. Household Savings An ENERGY STAR qualified water heater can save a household $30 to $300 a year on its energy bills. Qualified tankless and solar models can last up to 20 years, making them more durable than their less efficient counterparts. Although installation costs are higher for some models, particularly heat pump and gas condensing units, the simple payback period can be as short as three years, footnote 20. Annual Energy Expenditures for Different Water Heating Technologies Bar graph comparing annual energy expenditures for different water heating technologies. Solar with gas backup costs about $194 per year with a payback of 12 years. Whole-home gas tankless costs about $272 per year with a payback of 5 to 14 years. Gas condensing costs about $279 per year with a payback of 4 to 9 years. Gas storage with an energy factor of 0.67 costs about $333 per year with a payback of 7 years. Gas storage with an energy factor of 0.62 costs about $360 per year with a payback of 2.5 years. Conventional gas storage costs about $388 per year. Electric heat pump costs about $243 per year with a payback of 3 years. Solar with electric backup costs about $269 per year with a payback of 9 years. Conventional electric storage water heater costs about $539 per year. * Annual energy consumption of new qualified high-efficiency gas storage models will decrease after August 2010, when the ENERGY STAR criteria are tightened. Source: ENERGY STAR Residential Water Heaters: Final Criteria Analysis, U.S. Department of Energy, April 1, 2008. Figures updated with current utility rates by D&R International, Ltd. Getting Started Program sponsors that are already promoting energy efficiency through appliance, new homes, home improvement, or weatherization programs can significantly boost savings with ENERGY STAR qualified water heaters. For gas savings, begin promoting readily available solar, gas tankless, and high-efficiency gas storage systems. With their special installation requirements, gas condensing and gas tankless might best be targeted at new construction. For electricity savings, begin promoting solar water heaters, adding heat pump systems as they become more widely available. Program Design Options The following table shows how water heaters can be added to four common types of efficiency programs. AppliancesProgram Design Options: Develop a rebate or upstream incentive program similar to existing appliance programs offered at retail. Consider tiered rebates for higher-efficiency models. Encourage retailers to expand the types of water heaters for sale. Encourage planned, rather than emergency, replacement. Conduct outreach to plumbers to encourage them to stock ENERGY STAR qualified water heaters for emergency replacement.Key Considerations: One-third of water heaters are purchased because of an emergency. Half of all sales are through wholesale distribution; 87 percent of wholesale distribution is to plumbers.New HomesProgram Design Options: Include requirements or incentives for using ENERGY STAR qualified water heaters in new homes programs.Key Considerations: The efficiency requirements of some new homes programs are more stringent than ENERGY STARs. These programs need to incorporate a wide variety of products, including water heaters, to meet aggressive savings targets.Home Improvement or Home Performance with ENERGY STARProgram Design Options: Allow inclusion of ENERGY STAR qualified water heaters in whole-home rebate or loan programs. Educate consumers on the energy and dollar savings associated with ENERGY STAR qualified water heaters. Encourage planned, rather than emergency, replacement. Partner with retailers and plumbers on renovation outreach activities and provide incentives for the purchase of ENERGY STAR qualified water heaters.Key Considerations: Major renovation provides an opportunity for a comprehensive, whole-home approach to lowering energy usage and improving comfort. The most frequent recommendations are HVAC upgrade or tune-up and home sealing and insulation. Water heaters are outside the current scope of most existing retrofit programs.Weatherization for Low-Income CustomersProgram Design Options: Educate contractors and State implementers on the new ENERGY STAR options with training modules for weatherization contractors and training centers. Require ENERGY STAR qualified water heaters as the only replacement option.Key Considerations: Weatherization practices include a wide range of energy efficiency measures and technologies for retrofitting homes and apartment buildings. Almost two-thirds of weatherized homes receive some sort of improvement to their water heating systems. Storage-type water heaters are the most common water heating system installed. Federal Tax Credits and State Rebates Federal income tax credits are available to purchasers of ENERGY STAR qualified gas tankless, heat pump, and solar water heaters. There is also a credit for gas condensing units, but to be eligible the models must meet an efficiency level more stringent than ENERGY STAR, i.e., an EF of 0.82 for the tax credit compared to 0.80 for ENERGY STAR. In addition, the American Recovery and Reinvestment Act of 2009 provided funds to support State-sponsored appliance rebate programs, some of which are likely to include water heaters. Each State will decide which types of products it will promote, so rebate offerings will vary across the country. DOE anticipates awarding the Recovery Act funds to States by November 30, 2009, and State programs should be in place by early 2010, footnote 21. Tax Credits for ENERGY STAR Qualified Water HeatersGas TanklessTax Credit Amount: 30% of installed cost up to $1,500 for all improvements combinedMust be placed in service in an existing home in 2009 or 2010Heat PumpTax Credit Amount: 30% of installed cost up to $1,500 for all improvements combinedMust be placed in service in an existing home in 2009 or 2010SolarTax Credit Amount: 30% of installed cost, no maximumMust be placed in service in an existing home by Dec. 31, 2016Source: U.S. Department of Energy and U.S. Environmental Protection Agency, Federal Tax Credits for Energy Efficiency,  HYPERLINK "http://www.energystar.gov/index.cfm?c=tax_credits.tx_index" www.energystar.gov/index.cfm?c=tax_credits.tx_index, accessed August 26, 2009. Additional Resources DOE offers a number of resources to help partners design an effective water heater program, including: ENERGY STAR Water Heater Partner Resource Guide, featuring consumer messaging, profiles of the five technologies, and tips for selecting the right technology. This document is available in the  HYPERLINK "http://www.energystar.gov/index.cfm?c=manuf_res.pt_water_heaters" Partner Resources section of the ENERGY STAR Web site. ENERGY STAR Guide to Residential Water Heater Programs, featuring a complete list of water heater incentives offered by utilities and other energy efficiency program sponsors. This guide is available from your ENERGY STAR account manager. Assistance contacting other ENERGY STAR partners, including manufacturers, retailers, and other program managers. Contact your ENERGY STAR account manager for details. For more information, visit  HYPERLINK "http://www.energystar.gov/waterheaters" www.energystar.gov/waterheaters or e-mail  HYPERLINK "mailto:waterheaters@drintl.com" waterheaters@drintl.com. Energy and Cost Comparison for Gas Water Heating Options (50-gallon capacity) Non-Qualified Gas Storage Federal Standard Energy Factor 0.575ENERGY STAR Qualified Gas Storage High Efficiency Energy Factor 0.62ENERGY STAR Qualified Gas Storage High Efficiency Energy Factor 0.67ENERGY STAR Qualified Whole-Home Tankless Energy Factor 0.82ENERGY STAR Qualified Gas Condensing Energy Factor 0.8ENERGY STAR Qualified Solar with Gas Backup Energy Factor 1.2**Non-Qualified Gas Storage Federal Standard Annual Consumption 261 thermsENERGY STAR Qualified Gas Storage High Efficiency Annual Consumption 242 thermsENERGY STAR Qualified Gas Storage High Efficiency Annual Consumption 224 thermsENERGY STAR Qualified Whole-Home Tankless Annual Consumption 183 thermsENERGY STAR Qualified Gas Condensing Annual Consumption 187 thermsENERGY STAR Qualified Solar with Gas Backup Annual Consumption 130 thermsENERGY STAR Qualified Gas Storage High Efficiency Annual Savings 19 thermsENERGY STAR Qualified Gas Storage High Efficiency Annual Savings 37 thermsENERGY STAR Qualified Whole-Home Tankless Annual Savings 78 thermsENERGY STAR Qualified Gas Condensing Annual Savings 74 thermsENERGY STAR Qualified Solar with Gas Backup Annual Savings 130 thermsNon-Qualified Gas Storage Federal Standard Annual Operating Cost $388ENERGY STAR Qualified Gas Storage High Efficiency Annual Operating Cost $360ENERGY STAR Qualified Gas Storage High Efficiency Annual Operating Cost $333ENERGY STAR Qualified Whole-Home Tankless Annual Operating Cost $272ENERGY STAR Qualified Gas Condensing Annual Operating Cost $279ENERGY STAR Qualified Solar with Gas Backup Annual Operating Cost $194ENERGY STAR Qualified Gas Storage High Efficiency Annual Savings $28ENERGY STAR Qualified Gas Storage High Efficiency Annual Savings $55ENERGY STAR Qualified Whole-Home Tankless Annual Savings $116ENERGY STAR Qualified Gas Condensing Annual Savings $109ENERGY STAR Qualified Solar with Gas Backup Annual Savings $194Non-Qualified Gas Storage Federal Standard Life Expectancy 13 years, footnote 22.ENERGY STAR Qualified Gas Storage High Efficiency Life Expectancy 13 yearsENERGY STAR Qualified Gas Storage High Efficiency Life Expectancy 13 yearsENERGY STAR Qualified Whole-Home Tankless 20 Life Expectancy years, footnote 23.ENERGY STAR Qualified Gas Condensing Life Expectancy 15 yearsENERGY STAR Qualified Solar with Gas Backup Life Expectancy 20 yearsENERGY STAR Qualified Gas Storage High Efficiency Lifetime Savings 247 thermsENERGY STAR Qualified Gas Storage High Efficiency Lifetime Savings 481 thermsENERGY STAR Qualified Whole-Home Tankless Lifetime Savings 1,560 thermsENERGY STAR Qualified Gas Condensing Lifetime Savings 1,110 thermsENERGY STAR Qualified Solar with Gas Backup Lifetime Savings 2,610 thermsENERGY STAR Qualified Gas Storage High Efficiency Lifetime Savings $364ENERGY STAR Qualified Gas Storage High Efficiency Lifetime Savings $715ENERGY STAR Qualified Whole-Home Tankless Lifetime Savings $2,320 ENERGY STAR Qualified Gas Condensing Lifetime Savings $1,638ENERGY STAR Qualified Solar with Gas Backup Lifetime Savings $3,880 Non-Qualified Gas Storage Federal Standard Approx. Cost of Unit + Installation $865, footnote 24.ENERGY STAR Qualified Gas Storage High Efficiency Approx. Cost of Unit + Installation $935ENERGY STAR Qualified Gas Storage High Efficiency Approx. Cost of Unit + Installation $1,265ENERGY STAR Qualified Whole-Home Tankless Approx. Cost of Unit + Installation $1,470-$2,500, footnote 25.ENERGY STAR Qualified Gas Condensing Approx. Cost of Unit + Installation $1,300-$1,800, footnote 26.ENERGY STAR Qualified Solar with Gas Backup Approx. Cost of Unit + Installation $3,200****ENERGY STAR Qualified Gas Storage High Efficiency Approx. Price Premium $70ENERGY STAR Qualified Gas Storage High Efficiency Approx. Price Premium $400ENERGY STAR Qualified Whole-Home Tankless Approx. Price Premium $605-$1,635ENERGY STAR Qualified Gas Condensing Approx. Price Premium $435-$935ENERGY STAR Qualified Solar with Gas Backup Approx. Price Premium $2,335ENERGY STAR Qualified Gas Storage High Efficiency Approx. Simple Payback Period 2.5 yearsENERGY STAR Qualified Gas Storage High Efficiency 7 Approx. Simple Payback Period yearsENERGY STAR Qualified Whole-Home Tankless 5-14 Approx. Simple Payback Period yearsENERGY STAR Qualified Gas Condensing Approx. Simple Payback Period 4-9 yearsENERGY STAR Qualified Solar with Gas Backup Approx. Simple Payback Period 12 years4.7 million Non-Qualified Gas Storage Federal Standard Units Sold in 2006, footnote 27.350,000 ENERGY STAR Qualified Gas Storage High Efficiency Units Sold in 2006, footnote 27.10,000 ENERGY STAR Qualified Gas Storage High Efficiency Units Sold in 2006, footnote 27.254,600 ENERGY STAR Qualified Whole-Home Tankless Units Sold in 2006, footnote 27.ENERGY STAR Qualified Gas Condensing Units Sold in 2006 N/A, footnote 27. 8,500 ENERGY STAR Qualified Solar with Gas Backup Units Sold in 2006, footnote 27.Source: ENERGY STAR Residential Water Heaters: Final Criteria Analysis, U.S. Department of Energy, April 1, 2008. Notes: Annual energy use estimates are based on the DOE test procedure and calculated assuming an inlet water temperature of 58F, a set point of 135F, daily hot water demand of 64.3 gallons, and 365 days of use per year. Energy cost estimates assume the national average gas price of $1.49 per therm. * Gas storage water heaters with an energy factor of 0.62 or greater may earn the ENERGY STAR through August 2010, but thereafter must have an energy factor of 0.67 or greater. ** Solar Energy Factor is based on the SRCC conversion formula: Solar Fraction = 1 (Energy Factor/Solar Energy Factor), assuming a 0.6 energy factor for the gas backup. *** Energy consumption is estimated using the DOE test procedure and is based on the following formula: (41,045 BTU/EF x 365)/100,000. **** Cost varies widely because most installations are customized. The average cost is reported here. Energy and Cost Comparison for Electric Water Heating Options (50-gallon capacity) Federal StandardNon-Qualified High EfficiencyENERGY STAR Qualified Heat PumpENERGY STAR Qualified Solar with Electric BackupNon-Qualified Federal Standard Energy Factor 0.904Non-Qualified High Efficiency Energy Factor 0.95ENERGY STAR Qualified Heat Pump Energy Factor 2.0ENERGY STAR Qualified Solar with Electric Backup Energy Factor 1.8*Non-Qualified Federal Standard Annual Consumption 4,857 kWhNon-Qualified High Efficiency Annual Consumption 4,622 kWhENERGY STAR Qualified Heat Pump Annual Consumption 2,195 kWhENERGY STAR Qualified Solar with Electric Backup Annual Consumption 2,429 kWhNon-Qualified High Efficiency Annual Savings 235 kWhENERGY STAR Qualified Heat Pump Annual Savings 2,662 kWhENERGY STAR Qualified Solar with Electric Backup Annual Savings 2,428 kWhNon-Qualified Federal Standard Annual Operating Cost $539Non-Qualified High Efficiency Annual Operating Cost $513ENERGY STAR Qualified Heat Pump Annual Operating Cost $243ENERGY STAR Qualified Solar with Electric Backup Annual Operating Cost $269Non-Qualified High Efficiency Annual Savings $26ENERGY STAR Qualified Heat Pump Annual Savings $296ENERGY STAR Qualified Solar with Electric Backup Annual Savings $270Non-Qualified Federal Standard Life Expectancy 13 years, footnote 28.Non-Qualified High Efficiency Life Expectancy 13 yearsENERGY STAR Qualified Heat Pump Life Expectancy 10 years, footnote 29.ENERGY STAR Qualified Solar with Electric Backup Life Expectancy 20 yearsNon-Qualified High Efficiency Lifetime Savings 3,055 kWhENERGY STAR Qualified Heat Pump Lifetime Savings 26,620 kWhENERGY STAR Qualified Solar with Electric Backup Lifetime Savings 48,570 kWhNon-Qualified High Efficiency Lifetime Savings $338ENERGY STAR Qualified Heat Pump Lifetime Savings $2,952ENERGY STAR Qualified Solar with Electric Backup Lifetime Savings $5,386Non-Qualified Federal Standard Cost of Unit + Installation $650Non-Qualified High Efficiency Cost of Unit + Installation $700ENERGY STAR Qualified Heat Pump Cost of Unit + Installation $1,500, footnote 30.ENERGY STAR Qualified Solar with Electric Backup Cost of Unit + Installation $3,200, footnote 31.***Non-Qualified High Efficiency Price Premium $50ENERGY STAR Qualified Heat Pump Price Premium $850ENERGY STAR Qualified Solar with Electric Backup Price Premium $2,550Non-Qualified High Efficiency 2ENERGY STAR Qualified Heat Pump 3ENERGY STAR Qualified Solar with Electric Backup 9Non-Qualified Federal Standard 4.8 million Units Sold in 2006, footnote 32.ENERGY STAR Qualified Heat Pump less than 2,000 Units Sold in 2006, footnote 33.ENERGY STAR Qualified Solar with Electric Backup 8,500 Units Sold in 2006, footnote 34.Source: ENERGY STAR Residential Water Heaters: Final Criteria Analysis, U.S. Department of Energy, April 1, 2008. Notes: Annual energy use estimates are based on the DOE test procedure and calculated assuming an inlet water temperature of 58ferinheight, a set point of 135ferinheight, daily hot water demand of 64.3 gallons, and 365 days of use per year. Energy cost estimates assume the national average electricity price of $0.1109 per kWh. * Solar Energy Factor is based on the SRCC conversion formula: Solar Fraction = 1 (Energy Factor/Solar Energy Factor), assuming a 0.9 energy factor for electric backup. ** Energy consumption is estimated using the DOE test procedure and based on the following formula: (12.03/EF) x 365. *** Cost varies widely because most installations are customized. The average cost is reported here. Endnotes 1 Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8. 2 Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8. 3 Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8 and analysis of micro data conducted by D&R International, Ltd. 4 Annual Energy Outlook 2009, Energy Information Administration, Table 4, and "Residential Energy Consumption Survey 2005," Energy Information Administration, Table WH8. 5 Energy factor (EF) is a measure of a water heater's overall energy efficiency, based on the amount of hot water produced per unit of fuel consumed over a typical day. The higher the energy factor, the more efficient the water heater. The ENERGY STAR criteria specify a different minimum energy factor for each qualified technology except solar, for which a minimum solar fraction of 0.50 is required. 6 Energy Conservation Program for Consumer Products, Energy Conservation Standards Rulemaking for Residential Water Heaters, Direct Heating Equipment, and Pool Heaters, Framework Document Public Meeting presentation slides, U.S. Department of Energy, Washington, DC, January 16, 2007. The final rule is due in March 2010; manufacturers typically have three years to transition to new standards. 7 Assessment of the Residential Water Heater Market in the Northwest, Northwest Energy Efficiency Alliance, Report #E06-158, July 13, 2006. 8 Residential Energy Consumption Survey 2005, Energy Information Administration, Table HC2.8. 9 56th Annual Report: Statistical Review, Appliance Magazine, May 2009 and analysis by D&R International, Ltd. of data from the U.S. Census Bureau on new home construction and placements of manufactured homes. 10 ENERGY STAR Residential Water Heaters: Final Criteria Analysis, U.S. Department of Energy, April 1, 2008. 11 Air-Conditioning, Heating, and Refrigeration Institute. 12 A list of manufacturers of ENERGY STAR qualified water heaters can be accessed from the right hand side of the landing page for any one of the ENERGY STAR water heater technologies on the ENERGY STAR Web site at www.energystar.gov/waterheaters. 13 Analysis by D&R International, Ltd. with input from water heater manufacturers. 14 Assessment of the Residential Water Heater Market in the Northwest, Northwest Energy Efficiency Alliance, Report #E06-158, July 13, 2006. 15 D&R International, Ltd., based on interviews with water heater manufacturers. 16 D&R International, Ltd. communications with industry experts and observations of point-of-purchase materials in retail stores. 17 Analysis by D&R International, Ltd. of sales data for 2006 from Air-Conditioning, Heating and Refrigeration Institute and water heater manufacturers. 18 Assumes 52.5 million gas homes and 40.3 million electric homes acquire ENERGY STAR models, no fuel switching, and national average utility rates of $0.1109/kWh and $1.49/therm. 19 Analysis by D&R International, Ltd. of Annual Energy Outlook 2009, Energy Information Administration, Table 4. 20 The appendix provides more information on energy consumption, costs, and savings for each water heater type. 21 U.S. Department of Energy, DOE Announces Nearly $300 Million for Energy Efficient Appliances, July 14, 2009, http://apps1.eere.energy.gov/news/daily.cfm/hp_news_id=178. 22 How to Buy an Energy-Efficient Gas Water Heater, Federal Energy Management Program, September 2004. 23 Tankless Gas Water Heaters: Oregon Market Status, Energy Trust of Oregon, December 2005. 24 Based on survey data collected for the Super Efficient Water Heating Appliance Initiative, PIER Draft Final Project Report, California Energy Commission, March 2007 (CEC-500-05-010). Endnotes 25 Based on information in Tankless Gas Water Heaters: Oregon Market Status, Energy Trust of Oregon, December 2005, and survey data collected for the Super Efficient Water Heating Appliance Initiative, PIER Draft Final Project Report, California Energy Commission, March 2007 (CEC-500-05-010). 26 Based on information in Super Efficient Water Heating Appliance Initiative, PIER Draft Final Project Report, California Energy Commission, March 2007 (CEC-500-05-010), and Emerging Technology and Practices, American Council for an Energy Efficient Economy, 2004. 27 Gas Appliance Manufacturers Association and D&R International, Ltd. communications with water heater manufacturers. 28 How to Buy an Energy-Efficient Electric Water Heater, Federal Energy Management Program, September 2004. 29 Durability Testing of a Drop-In Heat Pump Water Heater, Oak Ridge National Laboratory, April 2004. 30 Residential Heat Pump Water Heaters: Energy Efficiency Potential and Industry Status, Vermont Energy Investment Corporation, November 2005. 31 The National Energy Modeling System: An Overview 2003, Energy Information Administration, April 2003. 32 Gas Appliance Manufacturers Association. 33 D&R International, Ltd. communications with water heater manufacturers. 34 Based on comments from the California Solar Energy Industries Association to the U.S. Department of Energy in response to draft criteria for ENERGY STAR water heaters. 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