Development  and Construction of On-Shore Windfarms

Andrew Aveyard Green Cat RenewablesJim WilkinsonCA Blackwells

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])

Services

• Owners Engineer• Banks Engineer• Project / Portfolio Due Diligence

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

Planning Process

• Feasibility• Scoping• Planning Application• Planning Consent

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

Development Model

• Secured finance• Non recourse finance

Contract Structure

• Balance of Plant• Multi Contract Choice based on risk assessment and

agreement on who will carry what risk

Project Review

• Project• Planning Conditions• Grid Connection• Wind Resource• Finance options• Turbine options• Contractor options• Programme• Risk Assessment

Site Visit

Site Visit

Site Visit

Geotechnical Investigation

Geotechnical Investigation

• Feasibility• Scoping• Planning Application• Planning Consent

Design

• Civils (access road, crane hardstanding and drainage)• Foundations• Electrical (cable layout)• Off site works (road widening, junction

improvements, ect)

Design

Design

Tender Process

• Form of Contract– Design and Build– Construct– Lump sum– Rates and Measurable

Purification of Pre-construction Planning Conditions

• Construction Method Statement• Route Access Report• Archaeology • Ecology• Radar / MOD• Operational Conditions

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

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

Financial Close

• 10% equity from Client• Funds made available• Grid Connection Deposit and Turbine Deposit • Principal Contractor formally appointed• Construction able to commence

Construction

Turbine Construction

• Turbine manufacturer– Foundations loads, design or completion– Turbine delivery– Turbine erection– Internal electrics– Commissioning

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Turbine Construction

Post Construction

• Commissioning• Take over• Snagging• OFGEM • PPA

Operations

• OFGEM: monthly returns and queries• Council: monitor operational conditions• Operations monitoring: generation & hardware

Development & Construction of on On-Shore Windfarms

Questions