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HULL WIND II A FRESH BREEZE OFF THE LANDFILL. Presentation to. Northeast States-EPA Workshop Siting Renewable Energy Projects at Closed Solid Waste Landfills and Contaminated Sites. June 25, 2008. Engineers Scientists Consultants. www.essgroup.com. HULL WIND II. BACKGROUND:

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HULL WIND II

A FRESH BREEZE OFF THE LANDFILL

Presentation to

Northeast States-EPA Workshop

Siting Renewable Energy Projects at Closed Solid Waste Landfills and Contaminated Sites

June 25, 2008

Engineers

Scientists

Consultants

www.essgroup.com


Hull wind ii
HULL WIND II

  • BACKGROUND:

    • History of Success – Hull Wind I

    • Municipal Lighting Plant – Local Knowledge and Expertise

    • Town Land For Reuse

    • Community Support


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HULL WIND II

  • Hull Sanitary Landfill Siting Considerations:

    • Available open space

    • Proximity to system interconnection

    • Prevailing wind conditions

  • Regulatory Siting Considerations:

    • Constructing large structures on closed landfills

      • Maintaining liner integrity

      • Maintaining cap integrity

      • Ongoing maintenance and monitoring


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HULL WIND II

  • Landfill Conditions – Three Sections:

    • Phase 1A – closed, unlined landfill cell, capped with low permeability (clay) cap

    • Phase 1B – closed, unlined landfill cell, capped with flexible membrane liner (FML) cap

      • Location for WTG Installation

    • Phase 2 – lined landfill cell, active, operating area of the landfill

      • Locations for supporting structures; poles, ductbank


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HULL WIND II

  • Project Specifications (Phase IB)- Disruption of 5,000 s.f. of existing landfill cap for WTG:

    • Removal of existing membrane and covering soils

    • Placement of a pile foundation

    • Placement of a 20’ square concrete pad over the piles to support WTG

    • Replacement of existing FML within disturbed area with 40 mil HDPE membrane welded to existing membrane to restore cap integrity

    • Cover with 12” of drainage sand and 6” of vegetative support soil (loam)


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HULL WIND II

  • Project specifications (Phase 2):

    • Utility poles (2) placement supporting overhead transmission lines for interconnection

    • Waste depth at pole locations in excess of 20’

    • Poles set at 6.5 ft. BGS to maintain liner

    • Placement of underground duct bank from WTG to switch gear to new overhead power line

    • Bottom of duct bank approx. 30” BGS to maintain liner


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HULL WIND II

  • Costs and Benefits:

    • $ 3,000,000 construction cost

    • $ 31,000 annual maintenance and insurance cost

    • Value of electricity approx. $0.10/kWh which would otherwise be purchased to respond to Hull demand


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HULL WIND II

  • Since June 22, 2006 (date of commission):

    • 7,767,600 kWhs generated (23.3% capacity)

    • $ 776,760 avoided energy costs

    • $1,800,000 received for RECs

    • No emissions

    • No fuel spills

    • No unscheduled outages




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HULL WIND II

  • All Images Courtesy of Citizens for Alternative Renewable Energy

  • www.hullwind.org


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