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HomeMy WebLinkAboutSP202100007 Presentation 2021-07-21Jefferson Mill Hydro Project County Special Use Permit Board of Supervisors . July 21, 2021 ,`;'y: ^4;01 I �0 NATEL ENERGY Agenda 1. Meeting formalities 2. Project Timeline 3. Natel Energy 4. Project Location 5. Project Facilities and Operation 6. Construction Timeline 7. Q&A 2 �0 NATEL ENERGY Project Timeline FERC 10 MW exemption draft application + USACEJPA Q3 2021 Q4 2021 Id4:i0 Terms & Conditions Receive JPA 2022 AUGUST 2022 Final FERC Application Construction of hydro (November) facility Eel ramp construction - design is in discussion with 2024 M 0 NATEL ENERGY Turbine provider o Engineering and sales of the Restoration Hydro Turbine Engineering and design o Site layout design with low environmental impact Permitting o Local, state, and federal permits Public point of contact o Address public comments, questions and concerns in the exemption application Penstock Permanent Magnet ,ow, inner Draft p Tube i ;�&' NATEL ENERGY Project Location: Parcels Scale 0 900 1,600 2, 400 Feet Nate. This map is for display purposes only and shows parcels as of 1213112019. See Map Book Intror wUm for additional details. 131 Albemarle County Project Parcels Tax Map: 123 6i ;�&, NATEL ENERGY Hydropower Features Proposed Turbine Type D062 Restoration Hydro Turbine Number of Turbines Proposed 1 Proposed Generator Type Synchronous PMG with Variable -Frequency AC Drive Estimated Total Installed Capacity (kW) 20 Estimated Average Annual Generation (kWh) 111,000 Gross Head (ft) 9 Design Head (ft) 8.5 Minimum Hydraulic Capacity (cfs) 20 Maximum Hydraulic Capacity (cfs) 45 Water Source Hardware River 6 �0 NATEL ENERGY Project Facilities • Existing Structures: • Dam: 140'long and 9' tall, with a crest width between 4' and 5', made of large angular stone and mortar • Mill House: Four story brick structure from 1800. • Water Room: 33'x 8.5'x 15' sunken chamber attached to the mill house where the turbine will be located • Impoundment: 5.3 acre-feet at 4.5' average depth • No existing fish passage or operating hydro • Proposed construction: • Intake: 14' x 12' x 10' reinforced concrete intake structure will be built upstream of the dam, on the west side of the dam. • Penstock: A 3' diameter penstock will run from the intake to the water room. • Draft Tube: Water will exit the turbine through a draft tube. • Water Room: A concrete box with 0.5' thick walls will be built inside the water room to provide additional support to the older masonry walls and a clean, dry and a protected location for the new turbine. • Fish Passage: Ramp for American eel & sea lamprey - Location TBD with USFWS • No new dam or change to the impoundment • No change in flow • No new transmission line, power will be used onsite under an ApCo net metering contract, excess will be sold back to ApCo 7 NATEL ENERGY I NNO -4v fig Jt I Jye Existing Project facilities: Site Plan \ \ Mpngta�y[tMf \ IAVPM[iiUa M� M[wl \ W nGM 51W[�KPXrt01N Oi© - © � P� © iOFLFVITONIX �C I tC'o'MN K yF mAgMM�6 © Ns'0ffiFL © / ox[neR �Imn� TaVSf BLNI� \ r r purvunrt� •j rrgxttf YVn Xmfx- wK�[Wp -- IK![XpRL fff lACttPfOGiIOX MP�MO [8'qp, 9p[Ebx' wEiplulO Bf ofiffEAwfol IwXXKwusl [o EfPopM WX6¢wuMEOF4Z,QI. KUMMING nK MROf FpurvYMq pxOGGIpIR r LO W INATEL tNERGY 11 0 NATEL ENERGY • j NATEL ENERGY