Vertical Axis Wind Turbines Feed In Tariff James Hoare Leon O Neil
Installer of Solar PV Wind Turbines Solar Thermal Heat Pumps
Wind Turbines Principal Types Vertical Axis Horizontal Axis
Principal Sectors Wind Turbines 1.Large Merchant Generation Developments 2.Small Scale 3.Building Mounted
Wind Turbines 1.Large Merchant Generation Developments 1mW to 100 mw Generation only,and all energy exported to grid long lead times, major development constraints to project maturity location is critical cost millions+
Wind Turbines 2. Small Scale 5kW to 50kW Generation and local consumption Shorter lead times, shared ownership location is still critical, but probably less ideal location Cost 200K to 1-2million
3. Building Mounted Wind Turbines Generation, and combination of local consumption and export. location is critical Generally single ownership 200W to 3 kw 3K to 20K
Vertical Axis Turbines Turby Rotapec Quiet Revolution
HAWT v VAWT
VAWT Main Advantages Better Suited for Locations with turbulent wind (Urban) More attractive and appealing to planning authorities
Main Disadvantages More Expensive Generally not as efficient in good locations
Main Issues Location The Output of a turbine is dependant on wind resource X 2 the wind speed X 8 the Power Output
Main Issues Location Many Turbines are installed in Poor Locations Principal Reasons 1. Lack of god data 2. DTI NOABL Database is not accurate at local Level 3. Turbulence significantly reduces Average wind speed 4. Not enough research done into positioning 5. Seen as easy solution to planning renewable energy needs
Advice for Planning a Turbine Use Energy Savings Trust Wind output Predictor for desktop research
Advice for Planning a Turbine Seek advice from MCS Accredited Installer
Advice for Planning a Turbine Ask manufacture to provide an estimate kwh per annum output given location criteria
Advice for Planning a Turbine Put up an Anemometer for at least 12 months to get a good guide as to actual wind resource
Feed In Tariffs
Feed In Tariffs A feed-in tariff system is government legislation that encourages a move from fossil fuels to renewable sources. The incentive comes by way of a premium payment for every kwh of green electricity generated regardless of whether it is used on site of exported back to the grid (for which there is an additional payment). The power companies are obliged by the government legislation to buy the renewable electricity, the additional costs of which are passed onto the customers.
Feed In Tariffs Feed In Tariffs have been the prevalent mechanism to accelerate smaller scale renewable energy projects in mainland Europe. So far the UK has taken the grant subsidy approach with schemes like the Low Carbon Buildings Programme
How it will work Consumer Decides to install a Renewable System MCS Compliant Install Consumer Approach F.I.T Licensee F.I.T. Licensee carries out checks Registration onto Central F.I.T. Register Confirmation F.I.T Agreement & Payment
The Proposed Generation Rates Technology Scale Proposed Tariff (p) Degression PV < 4 kw Newbuild 31 7% PV < 4 kw Retrofit 36.5 7% PV 4-10 kw 31 7% PV 10-100 kw 28 7% PV 100kW - 5MW 26 7% PV Stand Alone (fields) 26 7% Wind < 1.5 kw 30.5 4% Wind 1.5-15 kw 23 3% Wind 15-50 kw 20.5 3% Wind 50-250 kw 18 0% Wind 250-500 kw 16 0% Wind 500 kw - 5MW 4.5 0%
Additional Export An additional 5p / kwh will be paid for electricity exported to Grid
Timescale Milestone Date DECC Announces Consultation Response 03/02/2010 Licence Modification put before Parliament 03/02/2010 Deadline for 50kW to 5MW generators to switch from RO 28/02/2010 End of 40 day parliamentary consideration End March Start of FIT Scheme 01/04/2010 Full FIT IT System 01/07/2010
Benefits of FiT Generous returns from planning obligations Efficient use of roof Can provide steady, guaranteed income stream
WILL IT WORK? German Solar PV market is 300 times the size of the UK However, need to be careful over zealous pricing and subsequent FiT level cuts have had negative consequences in Spain and potentially Germany. Hard to estimate wind growth due to planning constraints
Current PV Market estimated at 8 mwp (2009) 2010 market estimated to be between 12 and 30 mwp Key for market expansion is correct implementation of Feed In Tariff 1000 800 600 400 200 Cautious Ardenham Optimistic 0 2009 2010 2011 2012 2013 2014 Optimistic Ardenham Cautious
Worked Example Solar PV 82 kwp Solar Array Stratford Upon Avon Installed by Ardenham Energy Autumn 2009
Worked Example Solar PV Stratford 82 kwp New Build PV Array 82 kwp PV Array Capital Cost 220,000.00 Generation Per Annum 70,000 kwh Feed in Payments 28p/kWh 19,600.00 Import Savings (cost of energy 10p/ kwh) 7,000.00 Export (none) - Total Annual Revenue Saving 26,600.00 Approx payback 8.5 years
Worked Example Wind Turbine 15 kw Turbine RSPB, Rainham Installed by Ardenham Energy May 2009
Worked Example Wind Turbine RSPB 15 kw Wind Turbine 15 kw Turbine Capital Cost 50,000.00 Generation Per Annum 20,000 Feed in Payments 23p/kWh 5,600.00 Import Savings (cost of energy 10p/ kwh) 1,400.00 Export (none) 300.00 Total Annual Revenue Saving 7,300.00 Approx payback 7 Years
Worked Example Domestic PV 2 kwp Domestic 1 x IG20 July 2009 Crowthorne
Worked Example Domestic PV Domestic 2 kwp PV Installation 2 kwp Domestic PV Array Capital Cost (Including 2500 grant) 6,500.00 Generation Per Annum 1,800 Feed in Payments 36.5p/kWh 657.00 Import Savings (cost of energy 13p/ kwh) 117.00 Export (50% exported) 45.00 Total Annual Revenue Saving 819.00 Approx payback 8 Years
Sources of Advice
QUESTIONS?