Consulting on the NSW Small Wind Turbine Consumer Guide Demian - - PowerPoint PPT Presentation

www.enhar.com.au

Consulting on the NSW Small Wind Turbine Consumer Guide

Demian Natakhan, Enhar

15th November 2010 NSW Small Wind Round Table , Sydney

www.enhar.com.au

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

www.enhar.com.au

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

www.enhar.com.au

Introduction

• Definitions,

– principles, system overview

• 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?

Small Wind Turbine Cable Trench (Underground) Grid connect Inverter

Switch

Gross Meter Grid supply Your power usage Guyed Tower

Wind turbine Controller

Usage Meter

www.enhar.com.au

Assessing your site

• Estimating your resource

–

• nline sources, local indications

– Probably sufficient for very high resource sites

• Wind monitoring: for marginal and low resource sites

Davis Instruments anemometer and wind vane product code 7911 APRS anemometer and vane NRG anemometer and vane

www.enhar.com.au

Assessing your site

• Wind monitoring: Case Study

9m wind monitoring mast with Davis equipment

www.enhar.com.au

Choosing a Turbine

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

Consider your power demand and your estimated/measured site wind speed, then size turbine to meet your demand (see Figure 2.1)

www.enhar.com.au

Choosing a Turbine

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

Alternative approach

www.enhar.com.au

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

www.enhar.com.au

Choosing a Turbine – Financial viability

www.enhar.com.au

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

?

www.enhar.com.au

Economics of small wind projects

3kW wind turbine economics

• 35,000
• 25,000
• 15,000
• 5,000

5,000 15,000 25,000 35,000 2 4 6 8 10 12 14 16 18 20

Time [Years] Cumulative cashflow ($) 8 m/s 7.2 m/s 6.3 m/s 5.4 m/s 4.5 m/s 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

www.enhar.com.au

Economics of small wind projects

Wind and Solar Economic Comparison FiT Rate 20c/kWh

• $40,000
• $30,000
• $20,000
• $10,000

$0 $10,000 $20,000 $30,000 $40,000 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8

Annual Average Wind Speeds [m/s] 20 year NPV Analysis

3 kW Wind Turbine 10 kW Wind Turbine 3kW solar 10 kW Solar Assumptions: Gross tariff 20c/kWh until 2016 Net feed in tariff at 23c/kWh from 2017 onwards Discount rate 6% Re-deeming for further 5 years after 15 years

www.enhar.com.au

Economics of small wind projects

Wind and Solar Economic Comparison Gross FiT Rate 60c/kWh

• $40,000
• $20,000

$0 $20,000 $40,000 $60,000 $80,000 $100,000 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8

Annual Average Wind Speed [m/s] 20 year NPV Analysis 3 kW Wind Turbine 10 kW Wind Turbine 3 kW solar 10kW Solar

Assumptions: Gross tariff 60c/kWh until 2016 Net feed in tariff at 23c/kWh from 2017 onwards Discount rate 6% Re-deeming for further 5 years after 15 years

www.enhar.com.au

Development Consent

• Refer to NSW proposed planning provisions

– Exempt development – Complying development

• General guidance if development approval is required

www.enhar.com.au

Installation

• Finding an installer
• Training and qualifications of small wind installers
• Grid connection procedures

– Approved inverter; Australian Standards – Gross meter and net metering options

www.enhar.com.au

Case Studies

Crookwell 10KW turbine

Randwick Council Community 2.4KW turbine

60kW Westwind, Breamlea

Milton - 5.8kW wind turbine for home / farm Hornsbury – 15KW turbine for rural fire station

More wanted! Questionnaire distributed & on enhar website

www.enhar.com.au

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

www.enhar.com.au

Next steps for The Guide

Feedback Forum today 3pm Your written comments received by 19th November

via consultation form please to info@enhar.com.au

Check www.enhar.com.au for documents and updates THANK YOU