onshore-windfarm-part-2
TRANSCRIPT
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Development and Construction of On-Shore Windfarms
Andrew Aveyard Green Cat RenewablesJim WilkinsonCA Blackwells
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Green Cat Renewables
• + 40 Environmental Consultants, Engineers, and Legal Support
• 4 offices in Scotland and England• Construction projects have ranged from single
turbines (0.33MW) too a 11.5MW project• Planning projects range upto 85MW project (25
turbines)• +50 turbines and 60MW operational (+2% Scottish on
shore turbines, +50% small scale [sub 10mw])
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Services
• Owners Engineer• Banks Engineer• Project / Portfolio Due Diligence
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Andrew Aveyard
• Engineering Team Leader 2010 – to date• Grown from 2 staff up to 12 technical staff• Grown from 4 turbines a year up to 55 turbines due
in 2012• Grown annual turnover from £120k up to £890k
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Planning Process
• Feasibility• Scoping• Planning Application• Planning Consent
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Development Process
• Project Review, Financial options & Risk Assessment• Geotechnical Site Investigation• Civil / Electrical Design• Tender Process• Purification of pre-construction planning conditions• Financial and Technical Due Diligence• Site Preparation (access roads, crane hardstandings)• Turbine Construction• Operations
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Development Model
• Secured finance• Non recourse finance
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Contract Structure
• Balance of Plant• Multi Contract Choice based on risk assessment and
agreement on who will carry what risk
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Project Review
• Project• Planning Conditions• Grid Connection• Wind Resource• Finance options• Turbine options• Contractor options• Programme• Risk Assessment
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Site Visit
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Site Visit
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Site Visit
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Geotechnical Investigation
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Geotechnical Investigation
• Feasibility• Scoping• Planning Application• Planning Consent
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Design
• Civils (access road, crane hardstanding and drainage)• Foundations• Electrical (cable layout)• Off site works (road widening, junction
improvements, ect)
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Design
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Design
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Tender Process
• Form of Contract– Design and Build– Construct– Lump sum– Rates and Measurable
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Purification of Pre-construction Planning Conditions
• Construction Method Statement• Route Access Report• Archaeology • Ecology• Radar / MOD• Operational Conditions
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Financial & Legal Due Diligence• Funding Documents• Security Documents• Bank Guarantees and Bonds • Direct Agreements• Power Purchase• Turbine Supply and Maintenance Documents• Property Documents• Consents• Construction Documents• Corporate Documents • Insurance Documents • Financial Model • Bank Accounts
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Technical Due Diligence• Planning Overview• Wind Resource• Turbine Supplier• Contractor• Ground Conditions• Transportation and Road issues• Work Schedules• Civils and Construction Works• Grid Connection• Metering• Communications• Construction Works
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Financial Close
• 10% equity from Client• Funds made available• Grid Connection Deposit and Turbine Deposit • Principal Contractor formally appointed• Construction able to commence
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Construction
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Turbine Construction
• Turbine manufacturer– Foundations loads, design or completion– Turbine delivery– Turbine erection– Internal electrics– Commissioning
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Turbine Construction
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Post Construction
• Commissioning• Take over• Snagging• OFGEM • PPA
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Operations
• OFGEM: monthly returns and queries• Council: monitor operational conditions• Operations monitoring: generation & hardware
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Development & Construction of on On-Shore Windfarms
Questions