The GREEN in Geothermal Heat Pumps

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The GREEN in Geothermal Heat Pumps. Shelton Cartwright, Jr. WaterFurnace International Territory Manager Virginia Maryland and Washington, DC. Cost Savings Cannot Be Ignored. This Mornings Session. Snapshot of WaterFurnace International - PowerPoint PPT Presentation

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  • THE GREEN IN GEOTHERMAL HEAT PUMPSShelton Cartwright, Jr.WaterFurnace InternationalTerritory Manager Virginia Maryland and Washington, DC

  • THIS MORNINGS SESSIONSnapshot of WaterFurnace InternationalQuick overview of geothermal technology and historyImportant growth trends including incentives from Federal, State and Local governments

  • THIS MORNINGS SESSIONCost Comparisons using a suggested professional approach by an HVAC contractorNew Home ExampleExisting Home ExampleLive Examples using the WaterFurnace Online Savings Calculator

  • ABOUT WATERFURNACEEstablished in 1983Over 300,000 geothermal units installed$129 Million (US) in Sales for 2009Traded on the Toronto Stock Exchange (WFI)$26.11 (Canadian) Per Share on March 19, 2010Headquartered in Ft. Wayne, IN115,000 SF Headquarter/FactoryServed by a geothermal pond loop system

  • ABOUT WATERFURNACEStaff of 5 TrainersGeothermal Pipe & DesignService and InstallationOne Day Refresher Training

  • GEOTHERMAL OVERVIEWHeating CycleHeat is extracted from the earth and moved inside the house with water pumps, then transferred to the air coil via the heat exchanger, compressor and refrigerant cycle.The optional desuperheater takes heat from the unit and uses it to heat water inside a domestic water heater tank.

  • GEOTHERMAL OVERVIEWCooling CycleThe optional desuperheater takes excess heat from the unit and uses it to heat water inside a domestic water heater tank increasing the overall efficiency.Heat is extracted from the house and via the air coil and refrigerant cycle, transferred to water inside the heat exchanger then moved with water pumps and rejected into the soil outside.

  • GEOTHERMAL OVERVIEWTypes of Geothermal UnitsWater to AirWater to WaterDual Capacity Compressors, Scroll CompressorsVertical, Horizontal Package and Split

  • GEOTHERMAL OVERVIEWTypes of LoopsHorizontalVerticalPondOpen Boiler

  • HISTORY OF GEOTHERMALNo longer a science projectFirst GHP 1904 in Lardarello, Italy1948 Ohio State Professor develops the first GHP for use in a residence1978 First modern GHP home in Oklahoma1982 First commercial closed loop system

  • GROWTH TRENDS5 Year Industry Unit Shipments* (000)*Source: AHRI

    20052006200720082009Change 2005/2009A/C 6,4714,9514,5083,9683,515-46%Gas3,5123,1972,7822,2802,174-38%HP2,1372,1181,8991,8561,642-23%Oil11193845556-49%Geo3343476885158%

  • FACTORS FOR GROWTHGreater perceived comfortLower operating costs2007-2008 Oil and LP fuels price jumpHigher electric utility costsConsumer acceptance as mainstream technology

  • FACTORS FOR GROWTHDemand side programs from electric utilitiesState & Local incentivesFederal tax stimulus

  • FEDERAL TAX CREDITHomeowners:30% of the entire cost of the project.System must be placed in service between January 1, 2009 and December 31, 2016.The home does not need to be the taxpayers principal residence.Equipment must be Energy Star Rated.

    Commercial:10% of total costInstalled between 10/3/2008 and 12/31/2016Building located in the U.S.Equipment must be Energy Star Rated.http://www.dsireusa.org/

  • MARYLAND EXAMPLEState :Grant $500 per ton Maximum $3,000 for Residential.Grant $500 per ton Maximum $10,000 for Commercial.

    Howard County:Property Tax Incentive.50% of eligible costsMaximum $5,000.Excess may be carried forward for 2 years.

    Other Maryland counties also have incentives for geothermal.

    http://www.dsireusa.org/

  • COST COMPARISONS

  • EER IS HIGHER THAN SEER21 SEER 15 EER or of a 30 EER Geothermal Heat Pump

  • BIN CAPACITY GEOTHERMAL VS. ENERGY STAR HEAT PUMPBack-up heat neededTypical geothermal systems balance point is at lower temperatures than with conventional heat pumps

    Chart1

    5622570026335

    41152461324479

    76682353322155

    112212245919116

    147732139217076

    183262072615398

    218792187913983

    254312543113084

    289842710411658

    325372710410160

    Back-up heat needed

    BTUH Load

    Geothermal

    16 SEER HP

    Sheet1

    Temperature BinBTUH LoadGeothermal16 SEER HP

    575622570026335

    5241152461324479

    4776682353322155

    42112212245919116

    37147732139217076

    32183262072615398

    27218792187913983

    22254312543113084

    17289842710411658

    12325372710410160

    To resize chart data range, drag lower right corner of range.

  • WINTER BIN HEATING HOURSTypical geothermal systems electric back-up operates for fewer hours than conventional heat pumps

    Chart1

    7595757

    7105252

    6954747

    6884242

    6173737

    49749732

    26926927

    10810822

    585858

    131313

    Hours

    HP Back-up

    Geo Back-up

    Sheet1

    HoursHP Back-upGeo Back-up

    577590

    5271000

    4769500

    4268800

    3761700

    32497497

    27269269

    22108108

    17585858

    12131313

  • TOOLS FOR CALCULATING ENERGY COSTSManual J To Calculate Heating and Cooling LoadsWaterFurnace Savings Calculator Allows homeowners to calculate savings based on their homes square footage and weather zoneUnique software available to WaterFurnace Dealers:Gizmo calculates savings based on unit(s) selectedGeoLink Design StudioHelps dealer select the correct unit for the given loadsCalculates needed trench or boreCalculates projected energy costsCalculates cost comparisonsNote: Other geothermal manufacturers have software similar to GeoLink Design Studio available for HVAC contractors.

  • ENERGY COSTS (VIRGINIA)Source: U.S. Energy Information Administrationhttp://www.eia.gov/

    FuelRate/UnitPeriodNumber 2 Heating Oil$2.48/gallonDecember 2009LP Gas$2.39/gallonNovember 2009Residential Natural Gas$12.52/tcfDecember 2009Residential Electric$0.1012/kwhrDecember 2009

  • HOMEOWNER COSTS30 Year Fixed Mortgage 5.02%Equity Loan 5.25%5 year CD 3.2%Installed Cost of Geothermal (2 to 6 tons single unit system)New $18,000 to $26,000 and up plus loopRetrofit $15,000 to $20,000 and up plus loopLoop $3,400 to $14,000 and upNOTE: Costs based on the Virginia market. Costs will differ in other states and regions. In addition, costs will differ according to soil conditions and home design.

  • NEW HOME EXAMPLE

    Two story homeTwo 3-ton Geothermal Heat PumpsNorthern Virginia

    Actual example home not pictured

  • Cash FlowAnalysisExplain the benefits early in the decision cycle.Note: Zero escalation rate yields conservative results

  • OPERATING COSTSAnnual Savings Geo vs. 16 Seer = $936Geo vs. Gas = $894

    Note: Calculated from GeoLink Software and Manual J data.

    SystemHeatingCooling Hot WaterTotal AnnualGeothermal$834$389$449$1,67216 SEER$1,194$519$895$2,608Natural Gas$1,465$516$585$2,566

  • ENERGY STAR RATED SYSTEMS GEOTHERMAL VS. CONVENTIONAL$1,670$2,608$2,566$4,017$4,749Northern Virginia Weather Zone, Gas Water Heaters are Power Vented2 Story Home with two 3-ton Geothermal Heat Pumps

    Chart1

    832389449

    1194519895

    1465516585

    2616516885

    30205161213

    Heat

    Cool

    Hot Water

    Sheet1

    HeatCoolHot Water

    Geothermal8323894491670

    Heat Pump11945198952608

    Natural Gas14655165852566

    Oil26165168854017

    LP Gas302051612134749

    To resize chart data range, drag lower right corner of range.

  • RETRO-FIT EXAMPLEMy House Charlottesville, VA3 Story Townhouse20 Years Old1,600 SF10 SEER Heat PumpReplace old HP with 3-ton Geothermal Heat PumpWhat a winter! Sick of snow, now that spring is here I have to repair my HVAC, or replace it with a geothermal system.

  • SAVINGS CALCULATOR

  • SAVINGS CALCULATOR

  • SAVINGS CALCULATOR

  • DEALER COMFORT SPECIALIST VISITS THE HOMEAssesses property for most practical type of loop.Measures the home for a heat loss/gain. Review Expected Energy Savings with the homeowner.

  • Life-Cycle AnalysisNote: Zero escalation rate yields conservative results

  • Cash FlowAnalysisYear-6 forward, $105.41 positive cash flow per monthNote: Zero escalation rate yields conservative results

  • OPERATING COSTSAnnual Savings Geo vs. Repair= $1,257

    Note: Calculated from GeoLink Software and Manual J data.HVAC Dealer follows up preliminary costs savings after Manual J study.

    SystemHeatingCooling Hot WaterTotal AnnualGeothermal$353$206$369$919Existing$991$594$601$2,176

  • ENERGY STAR RATED SYSTEMS GEOTHERMAL VS. CONVENTIONAL$918$2,186$1,516$1,334Northern Virginia Weather Zone, Gas Water Heaters are Power VentedRetrofit Home

    Options:30 EER GeothermalExisting 10 SEERNew 16 SEER HP New 95% AFUE Gas Furnace with 16 SEER AC *Not Energy Star Rated

    Chart1

    343206369

    991594601

    630285601

    697288349

    Heat

    Cool

    Hot Water

    Sheet1

    HeatCoolHot Water

    Geothermal343206369918

    Existing HP*9915946012186

    New HP6302856011516

    Gas Option6972883491334

    To resize chart data range, drag lower right corner of range.

  • NOTES ABOUT ESTIMATESEmphasize the savings ratios not the final amounts.The GeoLink Studio and other similar software uses algorithms based upon the latest ASHRAE engineering methods, 20-year average weather data, and a system installed according to the manufacturers guidelines.

  • NOTES ABOUT ESTIMATESLifestyles can impact energy usage as much as 30% for similar sized homes.Retired man leaves his home 1 to 2 weeks per month and is left disappointed with his actual savings.Some people just dont take enough showers.Weather can dramatically increase/decrease bills.

  • WINTER DEGREE DAYS DULLES AIRPORTThis past winter we had a colder December and February, but January was colder last winter.2007-08 was closer to the normal winter.Degree Days

    Chart1

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    798754947

    592666Mar

    313334Apr

    204124May

    2423Jun

    1118Jul

    274Aug

    6258Sep

    2007-08

    2008-09

    2009-10 YTD

    Sheet1

    Month2007-082008-092009-10 YTD

    Oct181344304

    Nov568624457

    Dec818821917

    Jan9111089964

    Feb798754947

    Mar592666

    Apr313334

    May204124

    Jun2423

    Jul1118

    Aug274

    Sep6258

    To resize chart data range, drag lower right corner of range.

  • SUMMARYGeothermal systems are no longer science projects and are considered mainstream technologies by potential users.Fuel prices, utility programs, and government incentives have contributed to the adaptation of geothermal technologies.Geothermal system efficiencies are significantly higher compared to conventional HVAC systems.

  • SUMMARYIt is important to train HVAC contractors to understand the impact of lifestyles and weather conditions when communicating energy savings to their prospective customers.HVAC contractors have professionally developed software to carefully project energy savings for their prospective customers.Homeowners enjoy higher ROIs when geothermal systems are picked vs. other choices, even the choice to repair broken HVAC equipment.

  • LIVE EXAMPLEShttp://www.waterfurnace.com/savings_calculator.aspx

  • QUESTIONShttp://www.waterfurnace.com/contact.aspx

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