X-Wind-Technology The economic energy transition
Does a renewable energy source with such outstanding characteristics exist? World wide available and grid independent Operational costs comparable to fossil fuels Profitable even without subventions Capacity factor / energy supply up to 70% p.a. Insignificant disturbance of the natural scenery / landscape
Source: Fraunhofer Institut IWES, NTS Nature Technology Systems | X-Wind | June 2014
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Agenda
Basic concept Energy kites pull electric locomotives
Nature Technology Systems | X-Wind | June 2014
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X-Wind combines well known technologies to an innovative airborne wind energy plant
Airborne powerunit/ Energy kite
Generator / Powerunit (electric locomotive)
Track system Source: NTS, Skysails Nature Technology Systems | X-Wind | June 2014
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Energy production and consumption – sailing as basic concept Energy production
Energy consumption
Back and forward with wind from one direction
Source: NTS Nature Technology Systems | X-Wind | June 2014
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Visualization of an NTS airborne energy plant(1)
Planned full blown site has a lenght of about 2000m(2) and its 24 power units produce energy for around 35.000 households (120 GWh/year) (1) compressed view; height between 200m and 500m (2) Total circuit about 4.800m Source: NTS Nature Technology Systems | X-Wind | June 2014
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First flight with energy production July 11th 2012
Source: NTS Nature Technology Systems | X-Wind | June 2014
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Agenda
X-Wind energy in a benchmark
Nature Technology Systems | X-Wind | June 2014
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With increasing height the windspeed rises and thus a positive energy effect is generated 600
500
Factor 3.1 Height (m)
400
300
Factor 2.4 200
100
0 3
4
Windspeed (m/s)
Source: QUH Nature Technology Systems | X-Wind | June 2014
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Additionally higher capacity utilization through almost constant wind availability at heights >200m Capacity utilization of airborne wind energy vs. conventional wind energy (25 different sites)
Capacity utilization
Airborne wind energy
Conventional wind energy Avergage windspeed / site (m/s)
Source: Fraunhofer Nature Technology Systems | X-Wind | June 2014
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Also in comparision to other energy sources, airborne wind energy / X-Wind energy is unbeatable Electricity production costs in EUR/kWh(3)
Electricity production costs in comparison (EUR per KWh) 0,22 0,20 0,18 0,16 0,14 0,12
0,10 0,08 0,06 0,04 0,02 0,00
Airborne PV PV Wind Wind 1 (1) wind small open Onshore Offshore (1) small = small roof; open = open areas (2) Gas and steam combi plants (3) Basis: different sites in Germany 2013 Source: Fraunhofer ISE - Studie November 2013, Fraunhofer IWES Nov 2012 11 Nature Technology Systems | X-Wind | June 2014
Bio gas
GaS(2)
Brown coal
Stone coal
Agenda
Business case X-Wind serial power plant
Nature Technology Systems | X-Wind | June 2014
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Investment and possible return – Example with Payback of 10 years(1) as prerequisite
Payback in years
10
IRR(3) in %
18
NPV(3) in bn. EUR
6.3
(1) Premise for calculation: time span 20 years, Payback after 10 years. Changing the premisses will lead to different KPIs (e.g. Payback after 19 years, NPV = 0, IRR 22%), calculation before tax (2) capacity utilization of about 60%; per year (3) IRR = internal rate of return; NPV = net present value (4) Total circuit about 4.800m Source: NTS 13 Nature Technology Systems | X-Wind | June 2014
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Energy Kite: The NTS Energy Kite as efficient vehicle for power generation – operating mode 1
Lift distribution on a rotor blade of a wind turbine
V Rotor 0 km/h
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A cut through the rotor blade
2
3
Two tips together are comparable to a kite
V Rotor 300 km/h
Kites are „flying rotor blade leading edges“
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The optimal flight pattern is a horizontal position of an 8
∆ t = 1s
70% of power Source: NTS Nature Technology Systems | X-Wind | June 2014
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Horizontal 8 – rotor blade tip of two wind turbines
Bogie and steering unit are forming the 1MW power unit – power transmission same as for a metro NTS Power unit
Power transmission into the grid
NTS steering unit 1
2
Pivot bearing 3
Bogie
Source: NTS Nature Technology Systems | X-Wind | June 2014
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1
Power unit
2
Conductor line
3
Collector
8 kites correspond to around 20 conventional 1 MW wind turbines (40 GWh p.a.)
Source: NTS Nature Technology Systems | X-Wind | June 2014
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In a 1:1 comparision with conventional wind plants the economic viability of X-Wind is clearly visible X-Wind power plant
Target output
Conventional wind plant
120 GWh/year
Power units
24 á 1 MW
18 á 3 MW(2)
Investment
29.5m EUR
Ca. 65m EUR
Max. IRR(1)
22.3%
10.9%
(1) Internal Rate of Return; Premise for calculation: time span 20 years, NPV = 0 (positive), target: max. IRR, calculation before tax (2) or about 60 wind turbines with 1 MW Source: NTS 18 Nature Technology Systems | X-Wind | June 2014
Fully automated departure - and landing Inflation Departure position
Departure
Source: NTS, Skysails Nature Technology Systems | X-Wind | June 2014
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Patents granted
USA
Turkey
China
Australia
Russia
South Africa
Europe
Morocco
Indonesia
Source: NTS Nature Technology Systems | X-Wind | June 2014
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