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Wyandotte Geothermal Utility Wyandotte Municipal Service.

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Presentation on theme: "Wyandotte Geothermal Utility Wyandotte Municipal Service."— Presentation transcript:

1 Wyandotte Geothermal Utility Wyandotte Municipal Service

2 Overview of Wyandotte Municipal Services Provides Water, Electric, Cable, Internet, & VOIP to the citizens of Wyandotte Water Utility –Formed in 1889 –Approx 10,000 customers –$4 Million in Annual Revenue Electric Utility –Formed in 1892 –Approx 12,000 customers –$41 Million in Annual Revenue Cable Utility –Formed in 1981 –Approx 8,500 customers –$9 Annual Revenue

3 Why Geothermal Heat Pumps? Refer to: Ground-Source Heat Pumps: Overview of Market Status, Barriers to Adoption, and Options for Overcoming Barriers US Department of Energy Submitted by Navigant Consulting, Inc. February 3, 2009

4 WMS Wants to Remove Barriers Space Constraints In Urban Areas Low Market Awareness Among Consumers The Need for Ground Loop Adds Cost, Complexity, & Risk Need Codes for Proper Design & Installation of Ground Loop Ground Loop Repair & Maintenance Challenges Requires Installation Specific Design & Engineering of Ground Loop

5 Why Does WMS Want a Geo-Utility Energy Efficiency Improves system load factor Is a dispatchable renewable energy source Lowers customers energy costs Economic development

6 Energy Efficiency The GSHP is one of the most efficient residential heating and cooling systems available today, with heating efficiencies 50 to 70% higher than other heating systems and cooling efficiencies 20 to 40% higher than available air conditioners. That directly translates into savings for you on your utility bills. Source International Ground Source Heat Pump Association

7 Improves System Load Factor

8 Lowers Customers Energy Costs Model Inputs Gas Service Fee $ 180.00 Gas Rate $ 1.06CCF/Ton0.12 Electric Rate $ 0.12874per KwhGeo Htg COP4 Customer Charge $ 4.50 GU monthly rate $ 26.75per ton Annual hrs heating2100 Annual hrs cooling1450 Inflation, elec, gas, maint4.00% Inflation GU2.00% Hot water add for gas0.35 Conv A/C kW/Ton1.35 Geo AC kW/Ton0.75

9 Lowers Customers Energy Costs Inputs - Wyandotte Home - Geothermal vs. Conventional Calculation for Tons = 2 ConventionalGeothermal Utility YearElecNat GasMaint Total Ops CostElecGU Cust ChrgMaint Total Ops Cost Ann Save Cum Save 1$504$1,168$210$1,882$584$642$54$53$1,333$549 2$524$1,214$218$1,957$608$655$54$55$1,371$586$1,135 3$545$1,263$227$2,035$632$668$54$57$1,411$625$1,760 4$567$1,314$236$2,117$657$681$54$59$1,451$665$2,425 5$590$1,366$246$2,201$683$695$54$61$1,494$708$3,133 6$613$1,421$255$2,289$711$709$54$64$1,537$752$3,885 7$638$1,478$266$2,381$739$723$54$66$1,583$798$4,684 8$663$1,537$276$2,476$769$737$54$69$1,629$847$5,531 9$690$1,598$287$2,575$799$752$54$72$1,678$898$6,428 10$717$1,662$299$2,678$831$767$54$75$1,727$951$7,379

10 Lowers Customers Energy Costs Current Incentives in Wyandotte –30% Federal Tax Credit –$1,000/ton Rebate from WMS –1.99% Unsecured Loans Available Also Offering Other Programs –Home Energy Audits –Suite of Other Rebates & Incentives Up to a total of $6,000.00 per home owner

11 How is the Geo-Utility Structured Wyandotte Geo-Utility provides the ground loop –300 ft. vertical bores, goal is to get to 600 ft. Ground loop located in public right of ways WMS assumes all ground loop risks Full shut off capacity City passed GSHP Ordinance Rates based on capacity of systems installed

12 What an Installation Looks Like

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14 Drilling Experience Urban Area –Average lot width varies 40 ft. to 70 ft. Landscaped yards –Trees, sidewalks, driveways, curbs, porches, etc. Artesian Wells –Rotten egg odors Fractured Limestone

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18 Rate Structure & Customer Options Residential Rate –Wyandotte drills & owns loop field –$4.50 monthly customer charge + $26.75 per ton Maintenance Rate –Property owner pays for well located in public right of way –$4.50 monthly customer charge + $11.75 per ton Property owner installs loop field on their property

19 Rate Structure & Customer Options Residential Rate –Wyandotte drills & owns loop field –$4.50 monthly customer charge + $26.75 per ton Maintenance Rate –Property owner pays for well located in public right of way –$4.50 monthly customer charge + $11.75 per ton Property owner installs loop field on their property

20 Process to Become a Customer Customer –Decide which rate option works for you –Sign a Service Agreement –Make arrangements for GSHP installation WMS will –Locate well on plot plan –Contract driller Driller will get permit from City –Complete loop and install service valves

21 Revenue Generation Potential Well installation permit fee –$200 for first well –$25 for each additional Potential Tax revenue with Public Ownership 30 year payback on well infrastructure Geothermal Electric Rates Renewable Energy Credits (RECs)

22 Current Status 52 installations already in the planning and design stage –25 new residential installations –19 retrofit residential installations –3 commercial installations –2 new multi-family developments (20 units) –3 Private home owners subscribed 18 loop fields installed 8 Installations Complete & In Service


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