Offshore wind in COWI

Transcription

1 EWEA OFFSHORE 2015 Offshore wind in COWI Jasmin Bejdic (JABC), Project Manager 1

2 Agenda Introduction COWI Wind Offshore wind in COWI Project development Feasibility studies Due diligence Power curve measurement with nacelle Lidar Offshore wind in Denmark Procedure and permits Current Governmental tenders Current open-door projects Challenges 2

3 Introduction COWI Wind More than 800 wind power projects in 68 countries since 1980's The complete service package 3

4 Offshore wind in COWI Project development COWI support developers with project development: Offshore/nearshore wind farm prospecting using mesoscale modelling Taking into account environmental and other constraints Selecting the optimum site for further development Based on cost of energy approach Make applications to the Danish Energy Agency Feasibility studies including technical investigations and EIA Tendering, negotiations and procurement Financing For the Mejlflaknearshorewind farm COWI is supporting with the complete project development 4

5 Offshore wind in COWI Feasibility studies The studies generally cover the following Wind resource assessment and AEP Met-ocean studies Assessment of geotechnical conditions EIA Regulatory framework and permits/licences Financial analysis including estimation of CAPEX and OPEX Project organisation COWI also performs the individual tasks separately Metocean and wind resource related study for Horns Rev 3, Six nearshore wind farms and Mejlflak wind farm were recently made Modelling for EIA for six nearshorewind farms was as well made by COWI 5

6 Offshore wind in COWI Offshore wind resource assessment No site specific met-masts or lidar Meso-scale modelling carried out to establish virtual met-mast data at the sites Meso-scale model validated against available met-mast data The generated wind data and information shall enable concession bidders to conduct economic energy yield calculations to qualified financial bids during the Danish Energy Agency's concession bidding process. Third party validation check by DEWI 6

7 Offshore wind in COWI Met-ocean Wind, turbulence, waves, water levels, currents and ice Ensure general compliance to IEC Certification by DNV-GL The data shall enable bidders to submit a qualified financial bid for design and construction of the OWF during the Danish Energy Agency's concession bidding process 7

8 Offshore wind in COWI Due diligence COWI assists with transaction management to minimize the risk for buyer including assessment of: Uncertainty on energy yield estimates Suitability of the wind turbine Technical assessment of the turbine supply contract O&M agreement and OPEX 8

9 Offshore wind in COWI Power curve verification COWI acts as a neutral and independent third party COWI is accredited by DANAK COWI offers power curve measurements for offshore wind farms based on nacelle Lidar and nacelle anemometer An accredited measurement of the power curve after installation of the project proves whether or not the turbine conforms to the warranty 9

10 Offshore wind in Denmark Procedure and permits The Danish Energy Agency (DEA) is the competent authority "One-stop-shop" for project developers Legislation Three licences needed to establish a wind farm 1. License to carry our preliminary investigations 2. License to establish the offshore wind farm 3. License to exploit wind power for a given number of years The EIA is part of the preliminary investigations Procedure Governmental tender procedure or open-door procedure Energinet.dk (Danish TSO) conducts the preinvestigation studies for Gov. tenders Tariffs Governmental tender: Feed-in tariff at xx øre/kwh for 50,000 full load hours Open-door procedure: Market price + 25 øre/kwh for 22,000 full load hours 10

11 Offshore wind in Denmark Current Goernmental tenders Large-scale offshore wind farms 400 MW Horns Rev 3 (Vattenfallwon the tender at cent/kwh) 600 MW KrigersFlak Nearshore wind tender "Nearshore" wind farms are located 4-20 km from the shore Six project sites 350 MW in total Maximum 200 MW at each site except Bornholm Bornholm maximum 50 MW 11

12 Offshore wind in Denmark Current open-door projects Only nearshore projects in development Most advanced is the Mejlflak Nearshore Wind Farm 80 MW Bay of Aarhus Several other larger nearshore projects are on their way 12

13 Offshore wind in Denmark Challenges For large-scale Governmental tenders there are no specific callenges Stabile political support For open-door procedures the main challenge is the low tariff Projects depend on the market price Current market price is around 20 øre/kwh Total tariff for first 22,000 full load hours is 45 øre/kwh (approx. 6 cent/kwh) Construction costs need to go down! 13

14 Questions? 14