Transcript Company Overview

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:
 History of Success – Hull Wind I
 Municipal Lighting Plant – Local Knowledge and Expertise
 Town Land For Reuse
 Community Support
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
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
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)
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
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
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
HULL WIND II - BEFORE
HULL WIND II - AFTER
HULL WIND II
• All Images Courtesy of Citizens for Alternative Renewable Energy
• www.hullwind.org