Gaia-Wind Craig Jones Director, Business Development NSW Small - - PowerPoint PPT Presentation

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Jul 20, 2023 486 likes •666 views

Gaia-Wind Craig 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 -

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Gaia-Wind Craig 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 blades
2. Control system activates mechanical brake
3. 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

ccasionally 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: Carluke Customer3: Saltcoates

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