Consulting on the NSW Small Wind Turbine Consumer Guide Demian Natakhan, Enhar 15 th November 2010 NSW Small Wind Round Table, Sydney
Scope of the NSW Consumer Guide Chapters: Introduction Assessing your site Choosing a Turbine Financial Considerations Development approval Installation, finding an installer Case Studies References and Glossary Appendix A: Your Wind Turbine Project Checklist Appendix B: List of Small wind turbines Appendix C: About wind roses Appendix D: Noise Assessment Guide
NSW Consumer Guide to Small Wind Generation Who it is for: Consumers considering purchasing an inverter-connected wind turbines 1-10kW, in NSW Focus on grid connected systems Off-grid consumers are referred to off-grid guides for issues such as sizing battery storage Predominantly, ground mounted turbines in 1-10kW range in rural locations Roof-mounted and urban applications also covered Mid sized wind turbines up to several 100kW for community groups Readers without technical know-how, no prior knowledge Readers who may be comparing solar vs wind options
Introduction Small Wind Turbine Definitions, principles, system overview Guyed Tower Grid connect Inverter Switch Gross Meter Grid supply Cable Trench (Underground) Wind turbine Controller Frequently asked questions Is my site suitable? How do I choose a turbine? How much energy will I generate? What is the likely payback period? What funding is available in NSW? Do I need development approval and how do I get it? How do I sell my generated electricity? Your power usage Usage Meter
Assessing your site Estimating your resource online sources, local indications Probably sufficient for very high resource sites Wind monitoring: for marginal and low resource sites NRG anemometer and vane Davis Instruments anemometer and wind vane product code 7911 APRS anemometer and vane
Assessing your site Wind monitoring: Case Study 9m wind monitoring mast with Davis equipment
Choosing a Turbine Consider your power demand and your estimated/measured site wind speed, then size turbine to meet your demand (see Figure 2.1) Review the wind turbine types on the market (see Appendix B) Select one or more turbine(s) which may suit your needs Ask the manufacturer of the selected turbine(s) to identify a local installer qualified to install their turbines Contact the installer to request information about their services Arrange for the installer(s) to visit your site Obtain full quotations from the installer(s) for the chosen turbine(s) Confirm your turbine type in light of these quotations
Choosing a Turbine Alternative approach Contact your local wind turbine installer Find out what turbine type and size your local installers offer Select your turbine type and size in consultation with your installer, to suit your site and power demand
Choosing a Turbine Approved products and product standards Power curve issues to watch out for Safety and reliability Wind Turbine Noise Guidance under development by NSW Department of Planning Include noise data to IEC61400-11 in turbine listing Choosing a tower type and tower height Choosing an inverter Urban wind turbines Special considerations
Choosing a Turbine Financial viability
Economic and cost considerations Solar Bonus Scheme Revised tariffs Scheme duration What happens after Scheme expires? Gross or Net metering Economic comparison between Solar and Wind Cashflow analysis Net present value analysis?
Economics of small wind projects Cumulative cashflow ($) 35,000 25,000 15,000 5,000-5,000-15,000 3kW wind turbine economics Assumptions: Capital cost $26,600 after initial RECs Earns 20c/kWh gross tariff until 2016 Net tariff thereafter at 23 c/kwh 20 year project life Re-deeming for 5 years at year 15 0 2 4 6 8 10 12 14 16 18 20 8 m/s 7.2 m/s 6.3 m/s 5.4 m/s 4.5 m/s -25,000-35,000 Time [Years]
Economics of small wind projects $40,000 Assumptions: Wind and Solar Economic Comparison FiT Rate 20c/kWh $30,000 Gross tariff 20c/kWh until 2016 20 year NPV Analysis Net feed in tariff at 23c/kWh from 2017 onwards $20,000 Discount rate 6% $10,000 Re-deeming for further 5 years after 15 years $0 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 -$10,000 3 kw Wind Turbine 10 kw Wind Turbine 3kW solar 10 kw Solar -$20,000 -$30,000 -$40,000 Annual Average Wind Speeds [m/s]
Economics of small wind projects Wind and Solar Economic Comparison Gross FiT Rate 60c/kWh $100,000 Assumptions: $80,000 Gross tariff 60c/kWh until 2016 $60,000 Net feed in tariff at 23c/kWh from 2017 onwards 3 kw Wind Turbine 20 year NPV Analysis $40,000 $20,000 Discount rate 6% Re-deeming for further 5 years after 15 years 10 kw Wind Turbine 3 kw solar 10kW Solar $0 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 -$20,000 -$40,000 Annual Average Wind Speed [m/s]
Development Consent Refer to NSW proposed planning provisions Exempt development Complying development General guidance if development approval is required
Installation Finding an installer Training and qualifications of small wind installers Grid connection procedures Approved inverter; Australian Standards Gross meter and net metering options
Case Studies Hornsbury 15KW turbine for rural fire station Milton - 5.8kW wind turbine for home / farm 60kW Westwind, Breamlea More wanted! Questionnaire distributed & on enhar website Randwick Council Community 2.4KW turbine Crookwell 10KW turbine
Appendix B: List of small wind turbine suppliers Wind turbine products available through resellers in NSW Mostly! Data table includes specifications, prices, contact details Prices are turbine excluding installation, unless fully installed price ranges are published
Next steps for The Guide Feedback Forum today 3pm Your written comments received by 19 th November via consultation form please to info@enhar.com.au Check for documents and updates THANK YOU