W I N D - T U R B I N ES, Enough wind for Wind turbines in Pakistan???

[PkRevolution]

I am thinking to buy a small windturbine Package (500-700 Watt) on just a test purpose. Few friends told me that Wind is in Karachi and in few places in Pakistan, so it will not be much usefull. Today i have seen the Wind Map of Pakisan. According to this Map Peshawer areas, Some places in Balochistan and Karachi should be perfect place to produce energy with Wind turbines.

I think a Hybrid solution of Wind energy and Solar Panels can solve this Problem in areas where less or minimum wind. What do you think??? Any body here with experience with Wind energy??

 

[Mojo-jojo]

[h=1]Sindh costal belt contains too much potential of wind energy [/h] Wednesday, 17 July 2013 14:06
Posted by Parvez Jabri

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ISLAMABAD: Energy Expert Irfan Mirza has said that the costal belt of Sindh which has 80 km width and 180 km long, contains too much potential of wind energy
Talking to a private news channel, he said present delegation of Overseas Private Investment Corporation (OPIC) headed by Elizabeth Little visit to Pakistan is good omen and the corporation takes part in debt and equity financing taking into consideration the USA strategic interest, he said.
He said that Pakistan has well-defined wind energy corridors which are about 340 thousand megawatt.
Mirza said that Pakistan has 2.9 million megawatt of solar energy potential besides photovoltaic opportunity.
He said that Pakistan is among a few fortunate countries that have a lot of potential of alterative and renewable energy production.
He maintained that Pakistan also has the natural resources of bio -fuel and cogeneration.
He expressed hope that government of Nawaz Sharif will capitalize on the renewable energy resources.
He opined that Pakistan will be in a position to export energy besides meeting its own needs after utilizing these vast opportunities of alternative energy resources.

 

[Mojo-jojo]

But the Reality is:

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[littlemaster]

Brother you can buy device to measure the speed of wind in your area and make sure it's catching up with manufacturer minimum requirement and look for hollow carbon fibre blade's turbine.

 

[asif65]

linkhttp://pkpolitics.de/discuss/topic/...-wind-for-wind-turbines-in-pakistan#post-4255

 

[salaudin]

There a few things to know about wind turbines. The equation that gives the possible power output from any wind turbine (or any turbine) is as follows,

P = 0.5*density*velocity^3*rotorArea*efficiency

Now, the best designed wind turbines have an efficiency of 0.45.
When buying the wind turbines, keep in mind that RATED WINDSPEED should be the regular wind speed. For instance, most small wind turbine sellers tend to give the power output values at insanely high wind speed (i.e. something that you would expect during storm). On average, the power should be given between 4 to 5 m/s as the average wind speeds in most urban places in the world fall between this. But the seller would try to fool you by saying that it is a 1kW wind turbine etc. Any wind turbine that can be installed on an average house's rooftop canNOT produce 1 kW under normal non-storm conditions.
Similar holds true for solar panels, they should be rated at 700 W/m2 and not 1 kW/m2.

Now, when using small wind turbines, keep in mind that they can only charge battery/batteries which you can use for a few hours (likely 2-3 hours) to run electrical devices (A/C etc are likely to be out of question but again it all depends on your wind turbine and battery size).

If you would like to know more or has any other question, let me know and I can explain further.

 

[lakhilove]

I was listening interview with Origin Energy CEO (Australian Energy Company) last week, one of the question he replied if there is not enough wind during the year they will use gas as backup (if out of 12 months may be no enough wind for 2/3 months). I am not expert on Power but why not we using Solar ???? On one exhibition I was talking to chinese solar company he said they have some contracts to Pakistan. But I never understand why not pak govt give subsidy to solar panel (I was checking Bangladesh, Peru etc) they are doing well in solar)

 

[lurker]

Only in Karachi its feasible. But then Uncle MQM will show up at your door.. lol.

 

[jaanmark]

thanks to American and British back power holders such nawaz and other like army chef and SC . all these power is the main case of darkness in Pakistan

 

[PkRevolution]

Brother you can buy device to measure the speed of wind in your area and make sure it's catching up with manufacturer minimum requirement and look for hollow carbon fibre blade's turbine.

Good suggestion. Thanks

 

[PkRevolution]

There a few things to know about wind turbines. The equation that gives the possible power output from any wind turbine (or any turbine) is as follows,

P = 0.5*density*velocity^3*rotorArea*efficiency

Now, the best designed wind turbines have an efficiency of 0.45.
When buying the wind turbines, keep in mind that RATED WINDSPEED should be the regular wind speed. For instance, most small wind turbine sellers tend to give the power output values at insanely high wind speed (i.e. something that you would expect during storm). On average, the power should be given between 4 to 5 m/s as the average wind speeds in most urban places in the world fall between this. But the seller would try to fool you by saying that it is a 1kW wind turbine etc. Any wind turbine that can be installed on an average house's rooftop canNOT produce 1 kW under normal non-storm conditions.
Similar holds true for solar panels, they should be rated at 700 W/m2 and not 1 kW/m2.

Now, when using small wind turbines, keep in mind that they can only charge battery/batteries which you can use for a few hours (likely 2-3 hours) to run electrical devices (A/C etc are likely to be out of question but again it all depends on your wind turbine and battery size).

If you would like to know more or has any other question, let me know and I can explain further.

Thank you for providing detailed information.

Wind turbine i am interested to buy has following technical data description: This 500 Watt turbine is just for testing purpose. But i want to make sure that this turbine can be tested :-)

This will be mounted on a house in Islamabad. 4m. high Pole. I will use a hybrid (solar wind) inverter and extend watts to 600 by installing a 100 watt Solar panel in same system.

 

[Marjan]

It's available for sale in Pakistan or you are buying it from EU ?

Thank you for providing detailed information.

Wind turbine i am interested to buy has following technical data description: This 500 Watt turbine is just for testing purpose. But i want to make sure that this turbine can be tested :-)

This will be mounted on a house in Islamabad. 4m. high Pole. I will use a hybrid (solar wind) inverter and extend watts to 600 by installing a 100 watt Solar panel in same system.

 

[PkRevolution]

It's available for sale in Pakistan or you are buying it from EU ?

I am buying it from EU. I have compared prices and this 500watt turbine costs approx. 40,000RS. 1KW turbine costs 79,000RS.

 

[salaudin]

Thank you for providing detailed information.

Wind turbine i am interested to buy has following technical data description: This 500 Watt turbine is just for testing purpose. But i want to make sure that this turbine can be tested :-)

This will be mounted on a house in Islamabad. 4m. high Pole. I will use a hybrid (solar wind) inverter and extend watts to 600 by installing a 100 watt Solar panel in same system.

My rough calculations at 4 m/s wind speed (which is the average wind speed in Islamabad) show that your average power output would likely be around 13 W. To put things in perspective, if you run the wind turbine the entire day i.e. 24 hours to charge a big battery (depends on battery classifications as well), you can run 500 W appliance/appliances for around 40 mins.
Now, 500 W means around 10 fans or 33 energy savers or 4 32" LCD or any combination etc.
BTW, it just caught my attention, you need to buy either a UPS or a regular inverter to convert the 12 or 24 V AC to DC BEFORE and AFTER the battery. It is an additional cost and additional loss of power.

Solar panel calculations are bit more trickier as their power output depends on solar flux while solar flux depends on cloud cover, panel angle with respect to the sun, dust cover etc. But I am certain that if the sellers are saying it is 100 W, the real output is likely to be a lot lower. If you could provide me the dimensions of the panel and the advertised efficiency, I may be able to give you the ballpark estimate of the likely power output.