A3_Papetti

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  • A3_Papetti

    1. 1. Small hydro success stories <ul><ul><li>Luigi Papetti </li></ul></ul><ul><ul><li>ESHA </li></ul></ul>
    2. 2. Troitorrents SHP
    3. 3. Troitorrents SHP <ul><li>Set on the drinking water network of Troistorrents (Valais, CH) municipality </li></ul><ul><li>It works on the high difference of levels between the catchment chamber and the surge tank, as a pressure regulator device </li></ul><ul><li>Typical application of energy recovery in high mountain remote areas </li></ul>
    4. 4. Troitorrents SHP
    5. 5. Troitorrents SHP
    6. 6. Troitorrents SHP <ul><li>Installed capacity 75 kW </li></ul><ul><li>Net head 242 m </li></ul><ul><li>Rated discharge 35 l/s </li></ul><ul><li>Energy production 230.000 kWh/year </li></ul>
    7. 7. Troitorrents SHP Costs 2.450 Specific cost [€/kW] 0,80 Specific cost [€/kWh] 185.000 TOTAL [€] 25000 Design and supervision [€] 30000 Civil works [€] 130000 Electromechanical equipment [€]
    8. 8. The reasons of a success <ul><li>Suitable also for operation in isolated networks </li></ul><ul><li>Multipurpose use of water </li></ul><ul><li>No additional infrastructures needed (intake, waterways, etc. already existing) </li></ul>
    9. 9. GARDONE VAL TROMPIA PLANT Main characteristics Plant location
    10. 10. BASIC FIGURES
    11. 11. Gardone V.T. in XVIII century
    12. 12. Plan view of the eight plants Bernardelli Beretta I Beretta III Redaelli II Redaelli I Beretta II S.F.A.E. Gramineto channel Acqualonga channel Penstock LEGENDA Redaelli III Acqualonga+Gramineto channel Intake Powerhouse
    13. 13. Schematic profile of the plant
    14. 14. Penstocks Section A: open channel (202,8 m) Section A: siphoned channel (321,1 m) Section A: cast iron penstock (254,5 m) Section B,C,D1: GRP penstock (768,4 m) Section D2,E: steel & concrete penstock (357,1 m) Section E: tail race (358 m) Surge tank
    15. 15. Weir
    16. 16. The intake structures
    17. 17. Headrace channel: open air stretch
    18. 18. Siphon intake during construction
    19. 19. Cast iron pipe installation
    20. 20. Glass reinforced (GRP) penstock installation
    21. 21. Studio Frosio Steel penstock
    22. 22. Surge tank during site assembly
    23. 23. Powerhouse - Before
    24. 24. Powerhouse - After
    25. 25. ECONOMICS INVESTMENT 1.835.000 Other partners 1.555.000 Local municipality 3.390.000 TOTAL 845.000 Other partners 855.000 Local municipality 1.700.000 Electromechanical equipment 990.000 Other partners 700.000 Local municipality 1.690.000 Civil works
    26. 26. ECONOMICS INCOME AND O&M 5,6 Gross payback ratio [years] 610.000 NET INCOME [€/year] 70.000 O&M costs [€/year] 680.000 Income [€/year] 0,17 Energy price (incl. Green Certificates 8 years) [€/kWh] 4.000.000 Energy production [kWh/year]
    27. 27. ENVIRONMENTAL BENEFITS EMISSIONS 0,12 Particulates [tons/year] 2,40 NO x [tons/year] 3,80 SO 2 [tons/year] 2.680 CO 2 [tons/year]
    28. 28. The reasons of a success <ul><li>Partnership between local municipality and private investors </li></ul><ul><li>Strong commitment of the local municipality </li></ul><ul><li>Good social acceptance thanks to the creation of the awareness in the general public of environmental importance of the initiative </li></ul><ul><li>Strict works supervision and control both from technical and administrative point of view </li></ul><ul><li>Creation of private-public company to manage and operate the plant, acting independently in the energy market </li></ul>
    29. 29. THE END <ul><ul><li>www.esha.be </li></ul></ul><ul><ul><li>www.studiofrosio.it </li></ul></ul>

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