Gaia-WindCraig Jones – Director, Business Development

NSW Small Wind Industry Round-table Event: 15 Nov 2010

• 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

• 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

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!

• 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

• Manufactured by Mita-Teknik, Denmark

• Components:• Computer• Operation panel• Capacitors• Soft starter• Contactors &

fuses• Voltage & current

sensors• Serial port for

monitoring

• 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 !

• 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

• 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. )

• 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

• Testing began May 2008 in both USA (NREL) and UK (TUVNEL)

• Testing completed July 2010• Certification granted ??• Over a 24 month cycle time.

• 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.

• 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

• 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

craig.jones@Gaia‐Wind.com