Windflow Technology Windflow Tim Armitage

A global leader in technology innovation leader in wind turbine technology A global Projects for New Zealand Sustainable Wind Energy Quality Manager - Outline

A global leader in wind turbine technology innovation leader in wind turbine technology A global Development of wind energy in NZ Community scale wind farms comparison Turbine comparison The challenge Conclusion • • • • • •

Windy New Zealand innovation leader in wind turbine technology A global 23% Wind generation 20% Capacity factor 43% Wind generation <3% – – – – New Zealand is like Saudi Arabia for wind Denmark: New Zealand: • • •

A global leader in wind turbine technology innovation leader in wind turbine technology A global range of project sizes speed of installation 90% renewable electricity by 2025 relatively low impact – – – – New Zealand Energy Strategy target wind energy favoured one of more cost-effective options most electricity generator and distribution companies’ portfolios • • • • Wind Energy for New Zealand In Consent Proposed Process Under Construction Existing Geothermal Hydro Biomass Gas Coal Oil Wind Existing Generation Growth Industry

A global leader in wind turbine technology innovation leader in wind turbine technology A global -

9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 Installed Capacity (MW) Capacity Installed Generator/retailers Wind farm developers Lines companies Councils Communities Others • • • • • • Wind Farm Locations

A global leader in wind turbine technology innovation leader in wind turbine technology A global Te Rere 2 Hau Tararua 3 Tararua Hill White Te Rere 1 Hau Tararua 2 Tararua Te Apiti Hai 2 Nui Tararua 1 Tararua Year Hai 1 Nui NZ installed wind energy end 2008 Brooklyn Turbine

1993 1995 1997 1999 2001 2003 2005 2007 innovation leader in wind turbine technology A global 0 50 MW 350 300 250 200 150 100 Currently 322 MW installed in New Zealand Additional 190 MW in construction 2300 MW in consent process NZ Wind Energy Growth • • •

Average size proposed 170 MW Largest 630 MW – – 2008 Year • Average wind farm size farm wind Average

1993 1996 1999 2003 2004 2005 2006 2007 2008 0

80 60 40 20 innovation leader in wind turbine technology A global

Average size built 20 MW Largest 93 MW 180 160 140 120 100 Wind farm size (MW) size farm Wind Wind farm size grown x8 – – 1993 – 2007 • 160 m high - approx 3.6 MW Hayes Turbines for Project of the Photo- Dunedin Octagon, simulations 500 Windflow

A global leader in wind turbine technology innovation leader in wind turbine technology A global – 0.5 MW 47 m high Scale of Wind Turbines

A global leader in wind turbine technology innovation leader in wind turbine technology A global Parliamentary Commissioner for the Environment, Press Release Nov 2006 – “The model of big wind farms isn’t the only one…we should also be thinking about ways of encouraging more distributed, smaller scale wind farms.” • Farms:

A global leader in wind turbine technology innovation leader in wind turbine technology A global for the Environment Have less concentrated impact on localities and communities May not create the same tensions as larger- scale wind farms Can be sited in locations that would inappropriate for large-scale wind farms Add to local energy security by strengthening local electricity networks Can increase public acceptance of wind farms Can retain economic benefits within the district or region Identified by Parliamentary Commissioner • • • • • • Attributes for Community-scale Wind 143 MW 62 x 111m high turbines National grid 14 MW 28 x 47 m high turbines Local Wgtn network West Wind: • • • Long Gully: • • •

Scale of Wind Farms innovation leader in wind turbine technology A global A global leader in wind turbine technology innovation leader in wind turbine technology A global dominant on ridge tops Taller turbines more visually ion%20Effects%20Report.pdf truction/Central%20Construct /MW /MW 3 3

A global leader in wind turbine technology innovation leader in wind turbine technology A global http://www.meridianenergy.co.nz/documents/Centralcons *Source: Project Central Wind Construction effects and Management, page 49, West Wind 143 MW based on 63 x 2.3 MW turbines Total earthwork volume:1,300,000* = 9100 m Long Gully 14 MW 28 x 500 kW turbines Total earthwork volume: 25,000 = 1800 m • • • • • • • • Earth Excavation Comparison Foundation for Siemens 2.3MW. West Wind wind farm. Diameter: 15 m

A global leader in wind turbine technology innovation leader in wind turbine technology A global Foundation comparison Single pile foundation for Windflow 500. Te Rere Hau wind farm. Diameter: 2.4 m 2 MW Oversize truck/trailers, + pilot vehicles Possible 2 units/MW 10 m wide 400 tonne crane 500 kW Standard trucks (5 trucks/MW) None 1 unit/MW 5 m wide Common 80 tonne crane

A global leader in wind turbine technology innovation leader in wind turbine technology A global Transport and Installation Transport Closures Earthworks Roads Craneage A global leader in wind turbine technology innovation leader in wind turbine technology A global Low Ecological Impact Small roads, crane pads, foundations Less ecological impact than equivalent MW of large turbines • • The Challenge

A global leader in wind turbine technology innovation leader in wind turbine technology A global NPS for renewable energy wants to encourage smaller community scale projects – how? Small scale wind farms subject to fixed costs such as resource consent Resource consent costs and timeframe for wind farms increased significantly, particularly for large scale projects using large turbines Have to negotiate for electricity price no price certainty or incentives offtake – in NZ • • • • A global leader in wind turbine technology innovation leader in wind turbine technology A global smaller environmental impact strengthening of local electricity networks (security of supply) increased public acceptance local community ‘ownership’ local economic benefits • • • • • Smaller/Smarter Distributed Wind Generation is a good option for NZ

Questions www.windflow.co.nz

A global leader in wind turbine technology innovation leader in wind turbine technology A global