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Good Wind Well at Prairie, Il. Analysis for Dominion Ltd. USA

Good Wind Well at Prairie, Il. Analysis for Dominion Ltd. USA. Wind-Well: high wind energy concentration @ the lower atmosphere, Stable in place & time, and economically reachable. Iftach Spector , president - WindWells Ltd. 2 Different Methods to Evaluate Wind Power.

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Good Wind Well at Prairie, Il. Analysis for Dominion Ltd. USA

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  1. Good Wind Well at Prairie, Il. Analysis for Dominion Ltd. USA Wind-Well: high wind energy concentration @ the lower atmosphere, Stable in place & time, and economically reachable IftachSpector, president - WindWells Ltd.

  2. 2 Different Methods to Evaluate Wind Power TheCurrent: Mathematical ExtrapolationPoint measurements at limited heights and time period Extrapolations to hub-height in Space and in TimeNote: average Speed ≠ average Flux, which is the main determinant, turbine cuts the extremes (mathematics can’t show this) * Physically weak method * 2-Dimentional, point oriented ⇒ No Vision * Produces Systematically Uncompetitive Wind Farms Compared to • WindWells: Physical Modeling • Well-measured References - local energy dispersion coefficients • ⇒ Library of References • Matching Target / selected Reference/s ⇒ expected energy profile • Validating profile by actual measurements • * 4-Dimentional, Physical Model based on Real Data • * Enabling Vision ⇒ Local Optimization (@ every site) confidential, property of WindWells Ltd.

  3. Scope of WindWell’s Work for Dominion • Dec. 2011: Dominion suggests we analyze some areas they plan for wind farms: - • Several lots on the Virginia Appalachians • East Virginia (hence: tobacco country) • North Carolina generally • South of Peoria, Illinois. • Jun. 2012: WindWells analyzed those areas at low spatial resolution (explain follows). • Appalachian Mountains No sufficient data to enable us to improve upon Dominion's locally based poles. • Eastern Tobacco Wind energy basically low. Performance improves to the East and closer to the beach. Going up improves performance @ hub heights above ~170m. • North Carolina Wind energy in NC's is basically low. In East NC wind energy is fair at low level. Meaningful economic improvement only at hub heights of ±200m. • Illinois: good wind well confidential, property of WindWells Ltd.

  4. Prairie Fork Wind Farm http://www.power-technology.com/projects/prairieforkwindfarmi/ Large wind power project that will be built on 25,000 acres in Christian and Montgomery counties in central Illinois, US. 25 miles south-east of Springfield The plant will be owned and operated by Dominion Energy. It will have an installed capacity of 300MW by 150 to 200 wind turbines at 350ft (106m) high. confidential, property of WindWells Ltd.

  5. Illinois Building upon wind’s physical patterns (well-tempered) over ref’s confidential, property of WindWells Ltd.

  6. Lo-Res Analysis for Springfield area • Lo-Res: Ref.’s by collected/purchased data banks (NASA, NOAA etc.) • XY ~10-20Km. Z = 25-50m. t = ~average month & year • Hi-Res: adding local data (met stations, wind poles & validation measurements), + calculating turbine’s faceplate rather just hub height • Results depend on data’s quantity and quality • Model validation: measurements (LIDARS) to confirm/improve the model confidential, property of WindWells Ltd.

  7. Wind Power Determinants @ PF: model results150-unit farm, 2MW turbines 4-25m/sec on 100m. Towers. Cost of turbine: $2.5M confidential, property of WindWells Ltd.

  8. $ Efficiency per height (m. AGL) @ PF, Calculated with a 3MW turbine. Turbine cost: $3.15M, installation cost by WWL’s cost model confidential, property of WindWells Ltd.

  9. Wind Energy @ PF: model results 150-unit farm on 100m. towers, 2MW turbines 4-25m/sec. Turbine estimated cost: $2.5M • Good wind well, at Reasonable Heights • Optimal Z - height (best output/cost) is at ~ 150m. (optimal XY has to be analyzed) • In this location, every meter up improves results. • Note: at PF, turbines larger than 2MW improve the economical results. • The 150m. Farm - • Besides reducing land area and public irritation • Saves ~$50+ million (8.5%) on project investment/ • Adds ~$0.375 billion (~23%) to farm’s 30yr sales • Shortens ROI by ~1yr. (~10%) • Reduces lifetime O&M expenses by ~17% $50M savings, Or - +$375M 30yr sales confidential, property of WindWells Ltd.

  10. Wind Wells Advantages For wind farms developers and owners • Punch/Dollar • Increased Output- Per turbine / Per acre • Improved Supply Continuity - Better grid compliance • Lower production cost - Lower Price / higher profit • Smaller investment, shorter payback period • New Wind Map - Many new, good locations • Better Environment - Fewer turbines, smaller footprint • Risks…? • Regular Technologies - Regular turbines/mast tech. • Fits Any Turbine – No development / replacements • Wind Analysis – Vision & Optimization. Verifiable. confidential, property of WindWells Ltd.

  11. In 2012 Dominion decided to concentrate upon LPG • The plan to develop a 300MW wind farm PF was frozen. • Dominion decided to continue paying the rent for PF, • and authorized WWL to try and find a developer/investor for that farm. confidential, property of WindWells Ltd.

  12. WindWells An Israeli startup In the midst of a splendid breakthrough Into the huge & growing market of economically competitive clean power The only truly viable energy market confidential, property of WindWells Ltd.

  13. The Team • IftachSpector, President • PhD student, energy, Tel AvivUniversity • Brig. General (Ret.), the Israeli Air Force • VP Elbit Military Systems, President, Insper steel-framed buildings, President, ISYS Computerized Management Systems Haimi Schneider, VP Engineering Architect, Architecture & Town Planning, The Technion, (1980) , Owner, H. Schneider Architects • ReuvenShenkar, Wind Data • M.Sc. mechanical engineering DTU (Tech University, Denmark), B.Sc. aeronautical engineering (cum laude) , the Technion, Haifa. Previously Project Engineer Det Norske Veritas (DNV), Denmark. confidential, property of WindWells Ltd.

  14. Carrying the Wind of change.. WindWells, 7 HaYarkanimst. Ramot-HaShavim 45930 Israel www.windwells.biz Iftach@windstar.co.il confidential, property of WindWells Ltd.

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