The Role of the Quantity Surveyor on Windfarm Developments · The Role of the Quantity Surveyor on...
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The Role of the Quantity Surveyor on Windfarm Developments
Neil Quinn MSCSI MRICSESB International
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Overview
• Introduction to Windfarms
• Contractual Approach to Windfarm Developments
• The Different Contracts
• The Role the QS can play
• Typical Claim Events
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Electricity Generation in Ireland
Combination of all
Coal (1903)
Hydro (1920s)
Peat (1950)
Gas and Steam (1980s)
Wind (Late 1980s)
Biomass (2005)
Tidal (2015?)
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Electricity Generation in Ireland
• Current Total Generation Capacity (RoI) of 6,764MW
• 1,700MW of Wind Generation Capacity (25%)
• Maximum Wind Output 1,506MW
• Target for Ireland is to have 40% Renewables by 2020
• ESB Generates 490MW – 331MW in Ireland
• Target Renewables Generation for ESB is 1800MW by 2025
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ESB Windfarm Portfolio
• Plus three Windfarms in the UK
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Windfarms
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Windfarms
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Windfarms - Typical Economics
• Average approximate cost of €1.5m per MW• Typical turbine currently generates 2.5MW• 15 turbine site ≈ €55m• Split:
– Turbines: 70%– Civil: 13%– Electrical: 12%– Others: 5%
• Renewable Credits - REFIT (Ire) ROCs (UK)• Target IRRs – Developer Dependent
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Contractual Approach
• Either:– EPC– Multi-Contract
• Can be D & B, or Employer Designed, or mixture
• 3 main contracts– Turbines– Electrical BoP– Civil BoP
• FIDIC Silver, Yellow and Red (heavily amended)
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Turbine Contract
• 70% of total Development Cost - €2m to €3m per turbine
• Main suppliers in Ireland – Nordex, Vestas, Enercon, Siemens
• Some will offer a full EPC service
• More usually extended to include Foundation Design
• Delivery and Erection are Key Issues
• FIDIC Silver in theory – Supplier’s contract in practice
• Scrutinise the terms and conditions!
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Electrical Balance of Plant
• 12 – 14% of total development cost
• Scope includes:– Substation (38kV or 110kV) including Civil Works– Cabling including Civil Works– House Transformers– Energisation / Commissioning
• Usually D & B – FIDIC Yellow
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Civil Contract
• Usually 13 – 15% of total Development Cost
• Scope includes:– WTG Foundations (piled if necessary)– Hardstandings– Access Roads & Drainage– Public Road Upgrades / Modifications
• Can be either Employer Designed or D & B
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Foundations
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Hardstandings & Access Roads
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Public Road Modifications
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The Role the QS can play
• All skills can be brought to bear
• Cost management traditionally by Engineer
• Civil Contract most obvious– Pre-contract estimates for Financial Models– BoQs / Procurement– Cost control during construction
• Regional Cost Variances
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The Role the QS can play
• Guidance for Turbines and EBoP on – procurement and contract terms – contract administration
• Risk Management / Apportionment
• Claims management on other contracts– Civil works on EBoP
– Wind delays on Turbines
– Negotiation skills are invaluable
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Typical Issues – Ground Conditions
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Typical Issues – Materials Management
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Typical Issues – Floating Roads
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Typical Issues - Geotechnical
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Typical Issues – Road Modifications
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Typical Issues – Wind Delays
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In conclusion…..
• A growing market
• A growing recognition of what a QS brings to the process
• Need for specialist cost management skills
• QS is best placed to deliver
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