Typhoon Turbine serie

Motorwind 5.7MW

Motorwind 9.5MW

Motorwind 28.5 MW

Typhoon Turbine
Motorwind 100MW

June 15 th 2015: Breaking news :our microturbines have successfuly pass the 200 kmh test.

The new rating for one single turbine is : 190 W for 55 ms wind speed.

We can make wind farm that not only withstand Typhoon / Hurricane /Cyclone /tornado forces but generate power during these storms and a lot of it.


How will it look for 150 000 turbines ?
Persian Visual ............................................... Japan Visual
  Iran Japan    
USA Visual ................... Philippines Flag Visual
  statue of liberty philippines flag    

we have 150 000 pixels 500 x 300 (turbines) to draw any picture.

they can be seen from kilometers away.

Power Curve for wind speed below 10 ms with one generator and a variable number of turbines

 Power curve for a single generator at different wind speed for one single Turbine

Power curve of a single turbine for 0 to 55ms (real data measured and not calculated)
power curve
The Chart below shows a motorwind farm(150000)rated at 28.5 MW at 55 ms compared with a Nordex S77 1.5 MW

We can see that from zero to 10/11ms they are comparable.

But there is big changes above this level at 15 ms Motorwind generates 3MW and at 20 ms :5.5 MW

and at approx 50/55 ms around 28 MW.

at 25 ms when the Nordex Shut down we are generating 9 MW.

These once again are real numbers.For 150 000 Turbines that generate 190 W at 55ms it is 28.5 MW


it all goes down to economics /costs.

a Motorwind farm of 150 000 turbines cost approx 6 millions US$ (installed).

a Nordex S77 approx 4 Millions US$.

we need to do some simulations to analyse the interest.

(simulations are just for reference because in wind industry it is not that simple as wind comes in gusts and are quite never stable).

Price:0.18 US$/KWh (philippines or Taiwan) Japan : 0.45 US$/KWh

A) we have 250 days at 12ms wind speed and 15 days of typhoons /High wind at 30ms.

MotorWind production: 14500 MWh ( +60%) (2.3 years payback)

Nordex production: 9000 MWh ( 2.46 years payback)


B) 250 days at 5ms and 15 days at 30ms

MotorWind production: 5000 MWh (+ 600%)(6.6 years payback)

Nordex production: 786 MWh (28 years payback)


C)250 days at 17 ms and 15 days at 40ms

MotorWind production: 30800 MWh (+342 % ) (1 years payback)

Nordex production: 9000 MWh (2.46 years payback)


D)300 days at 17 ms and 2 days at 30ms

MotorWind production: 33100 MWh (+306 % ) (1 years payback)

Nordex production: 10800 MWh ( 2.05 years payback)


IF the wind never goes higher than 10/12 ms then Nordex is the best option due to its lower cost.

IF there is any typhoons then Motorwind is the best option due to its capacity.

The major difference in payback calculation comes from the fact that a Motorwind system can last for 100 years as all components can be replaced /repaired ,so once it is paid it will generate for 70/80/90 years at zero cost.

a Conventional turbine is designed to last for approx 20 years and then need to be taken down as the stress damages are too severe for any refurbishing.

For investors what is important is how much a system can generate once it has been paid.

lets assume that both system have been paid within 3 years then Motorwind will generate 3 times more revenues and for a much longer period so the return is really high.

for a Nordex assuming that there is no incidents then

approx 1.3 million a year for 17 years = 22 millions US$

for a motorwind including a provision(0.5 million US$) every year for replacement parts

approx 4 millions a year for 100 years: =400 millions US$

(assuming that the price of kWh wont change for 100 years which is very doubfull).


in the wind turbine business the main fear is to break a blade.it cost and the machine performance is affected for week/weeks.

it happens in regular basis in wind farm in tropical area due to storms.

For years designer have been trying to solve this issue but it gets only worse.

the bigger the heavier and the weaker.

for the last 8 years Motorwind has installed many installations and they all went through typhoon and storms without damages,so we have proven that the turbines and structures can take very high wind speed.

we have in South China/Hong Kong an average of 10 to 15 days of high wind speed up to 80ms and they are forecasted to increase in number and intensity.

In Japan they have even a higher number and philippines even higher.

Schematic of one unit
Offshore farm

Schematic of one panel

The panels are only 10 m in width and 5 m high . they can be handled easily and they also can move freely from the other panels so they can adapt to the different wind conditions at different hight.it also decreases their moment of inertia so the response time is faster.

each panel is only 50 square meters and weights only 1 ton so as per our philosophy we can install as many panels as necessary to collect the energy that we need.One panel being made of 512 turbines can generate 97 KW at 55ms (approx 600 Amp DC) and still can generate approx 3.5 KW at 10 ms.

off shore farm panel


at 9ms the available energy per square meter from wind is : 1/2 x 1m2 x 9^3xd = 364 W.

at 40ms it is: 32000 W (approx 100 times more ) so even if it last only for few hours /days it is still a massive amount.

there is of course challenges in tapping typhoons or hurricanes but maybe not what everybody expect.

it is not structural ,it is electrical .When you have 75 000 Generators delivering 1.5 Amperes each it is 112500 Amp.

since it is DC current it can not be directly transformed with a transformer but transformed into AC using inverters.

Inverters technology is very mature in some way and 100 kW inverters are available but still need a lot of them

It is also what makes the system quite reliable because a general failure can not happen ,it can only happen sections by sections so if one section fail the other 219 or 349 will continue working.

Can the grid take the load?

during typhoons all wind farms are down so there is some capacity available



Cost justification:

There is approx 300 tons of plastic/generators/stainless steel while a Nordex needs approx 80 tons.

we have a structure that is nearly 300 tons while Nordex is approx 70 tons

Motorwind technology is in DC so that the energy can be stored in batteries.

for reference:today most of the appliances we use are in DC or could use DC.only some motors still need AC but also that is changing as motors with PM start to come to the market due to their high efficiency.Within 10 to 20 years DC could be the norm. PV panels also generate DC.

each unit Motorwind 150000 is equipped with 5 MWH capacity batteries (5000 x 200 amph).

and 50 units of 100KW inverters.

This allow on top of dividing the risks to :

A) absorb the fast changing energy level

B) give a study distribution to the grid

C) reduce the number of inverters

D) allow full energy transformation from the generators

C) gives the time to decision makers.

E) Change the voltage output instantly by reconnecting batteries in serial or parallel.

for example we can deliver 12V or 220V or 2000V DC .

for a 100 units the storage capacity is 0.5 GWh.

F)for different reasons sometimes the grid is not available so conventional turbines can not sell their production and it is a net loss.when the system is equipped with a large capacity storage there is no losses as the production will be stored.

G)large storage capacity is a very strategic tool in power distribution as it can help regulate the peak hours.A city like Hong Kong has over 10 GW production capacity only to deal with peak hours when the average needs are within 1 to 3 GW.


MotorWind Technology covers all spectrum of wind speed ,From 1ms up to 55 ms and up to 230 kmh.

Wind farms that can transform typhoon- Hurricane energy have a shorter payback time and generate more revenues.

MotorWind Farm are very flexible in terms of installation and production and maintenance.Availibility Factor is nearly 99%.

Actual life time of a Motorwind system can be extended up to 100 years as every component can be easily replaced or repaired.

Motorwind system uses less Land .

in average 50 acres per MW for conventional turbines .approx 200 000 square meters.

Motorwind 150000 requires : 10 000 square meters : 20 times less.

Motorwind stability is impressing as 50%(30 tons) of the spinning mass moves clockwise and 50%(30 tons) anti-clockwise.

We have 60 tons moving at 15000 RPM under typhoon with no vibrations.

for conventional turbine around 40 tons moving at around 10 RPM. with a moment of inertia around 16 000 000 kg.m2

The moment of inertia of the total mass of 60 tons is equal to the single turbine Moment of inertia:(0.004kg.m2) so it can adapt very fast to wind changing speed.

Motorwind system have a large back up/storage capacity.

unbreakable turbine with no blades that can come out.

easy design supporting structures.

No structural foundations inland or Offshore.

Unique advantage : production can be in any country and right on the location as we do not need very sophisticated machinery

and molds.

Tower are build according to each country construction and buildings code.

Many standard and regulations do not apply to Micro-turbines.


This year the Chinese government has published a guideline on wind turbine regulations for typhoons due to the quite large number of broken machines /blades and towers.

A study by Japanese researchers on 2013 Okinawa desaster by Typhoon Maemi (all wind turbines destroyed) has established the real causes and it will make all Wind Turbines Manufacturer going back to the drawing board if they want to install turbines in typhoons areas


For Motorwind Technology we are interrested by any tropical depressions and not just typhoons or super typhoons.

only about half of the tropical depressions will transform as typhoons and many of the typhoons do not make a landfall.

a tropical depression is classified as approx 16 ms and a typhoon as approx 32 ms super typhoons are up to 80 ms.

The origine of typhoons is quite clearly identified and their path is in some way well known with 2 or 3 zones with high concentrations of path. Easter coast of philippines /North of Philippines /South Japan /Dayu islands.

if half of the depression take the same path then for example in 2013 we have about 15 depressions which means that we have approx 45 days of very high wind speed (from 16 to 80ms) .

usually a tropical storm moves slowly around 5 to 10 kmh while a typhoon can move faster 10 to 20 kmh.they cover very large areas from 20 KM to 500/1000 KM.

Any Motorwind system located within that area can generate a lot of MWh

Pacific Tropical Storm History
35 tropical depressions  
25 storms  
14 typhoons  
5 super typhoons  
Strongest ;Sanba 205 kmh  
52 tropical depressions  
31 storms  
13 typhoons  
5 super typhoons  
Strongest ;Haiyan 230 kmh  
30 tropical depressions  
31 storms  
23 typhoons  
8 super typhoons  
Strongest ;Vonfong 215 kmh  
2015 up to june
9 tropical depressions  
8 storms  
4 typhoons  
3 super typhoons  
Strongest ;Noul 205 kmh  
  2012 atlantic  
2012 Atlantic tropical storm
19 tropical depressions  
19 storms  
10 Hurricanes  
2 super Hurricanes  
Strongest ;Sandy 185 kmh  
Conclusion : we have quite good data on Typhoons/super typhoons and there is nothing mysterious in structural enginering.

We have an unbreakable wind turbine (even with a hammer it cant be broken because it is made of soft material that deform but dont break) we have simple structures that can be calculated by any structural engineer to withstand 200 kmh wind speed with still a safety factor of 1.5 to 2.

They just need to be installed and start generating power.



updated :25 June 2015   Motorwave Ltd. Copyright 2006