gaia-wind craig jones – director, business … 11 15...• uk fit’s have delivered large demand...
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Gaia-WindCraig Jones – Director, Business Development
NSW Small Wind Industry Round-table Event: 15 Nov 2010
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• Since 1993; 260+ turbines installed• 1000 years operational experience• Class leading performance due to large
rotor - 133sqm swept area in moderate winds 4.5-7.5 m/s
• Paul Gipe’s in ‘Wind Energy Basics’;“The wind turbine with the biggest rotor will almost invariably generate more power than a turbine with a smaller rotor; regardless of generator rating or purported efficiency”
• Key customer groups - farmers, large homes, SME’s and estates
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• UK FIT’s have delivered large demand for good producing turbines
• To 6 turbines per week now, 10 per wk in 2011
• Sales through key partnerships
• Well trained, limited number of wind/renewable experts
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The facts:
• 3 phase grid connected turbine– G83 certification– EN50438
• Three levels of system protection;1. Passive stall of blades2. Control system activates mechanical brake3. Centrifugally activated aerodynamic tip brakes
• Low noise; 40 dB(A) at 100 m, rural night time background level; 20-40 dB(A), QUIET Turbine!
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• Single piece, Glass fibre polyester• Centrifugally activated tip brakes, manual reset• Rubber bushings and teetering hub
• Towers; steel, hot dip galvanised• Tubular or lattice• 18m height, 15m lattice and 27m tube – UK
standard• 100/120/140 foot – USA standard
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• Manufactured by Mita-Teknik, Denmark
• Components:• Computer• Operation panel• Capacitors• Soft starter• Contactors &
fuses• Voltage & current
sensors• Serial port for
monitoring
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• Costs, typical;– Gaia-Wind 11 kW turbine; £50.000 fully
installed– Maintenance; £600 per turbine per year
• Revenues for typical 29.000 kWh/yr– FIT’s 26.7p / kWh => £7,743– Savings on electricity bill; 14000 kWh x
15p => £2,100 – Export; 15.000 x 3p = £450– Total revenues; £10,293
• Simple payback: £50,000 / £(10,293-600) = 5.2 years !
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• Why Certify?• Not a legal requirement globally but:
– Needed to access worldwide incentives
– Standardised method to compare turbines
• Normalised for tower height and altitude
• Declaration of yield – AEP• Peak / Rated power is a poor
discriminator• Wind speed / Power curve shape
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• Demonstration of safety and function– End user assurance
• Confidence in durability– 20 year life of UK incentive scheme
• Declares acoustic performance, useful for planning / permitting can be huge hurdle globally.
• Creates a high bar that discourages the Shysters and Bozos peddling their crud (Ackn. Mike Bergey, Bergey Wind Power Co. )
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• It does not guarantee safety• It judges the certified machine against the
standard only. Very specific and clear cut. e.g. Aircraft engines are certified but occasionally fail.
• It is not a mechanism to police designs• Declaration of changes are required but cert
bodies not required to seek out any changes made.
• It does not guarantee performance – just specs it..
• Site specific• It does not guarantee incentive eligibility.• Scheme dependant
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• Testing began May 2008 in both USA (NREL) and UK (TUVNEL)
• Testing completed July 2010• Certification granted ??• Over a 24 month cycle time.
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• Submit a machine which is design frozen and ready for testing. BoM has to be submitted.
• Take 30 days at the test site for shakedown before beginning the formal testing.
• Read the standards!• It’s time consuming and expensive. 24
months plus and c USD100k+. • Treat it seriously and prepare carefully.• Dialogue with certification body all
the time.
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• Graham Taylor, architect• Designed his own eco house & office
– Triple insulation– Heat recovery ventilation– Electric boiler with storage
• His Gaia-Wind produces 29,000 kWh• House using 14,000 kWh
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• Farmers, Rural businesses, private individuals all require data
• Economics needed to drive growth of industry and prove returns
• Customers deserve a Handsome Return• Online monitoring for clarity about product
performance:• Gaia-Wind provides it
Customer1: Eco House (7days)Customer1: Eco House (24Hours)Customer2: CarlukeCustomer3: Saltcoates
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craig.jones@Gaia‐Wind.com