Anyone try some wind turbine? Can instal on the roof to generate some power. He...

Thinking some wind turbine project using some servomotor.

No need live in kampung 1. Make small small 1. Than decorate with some leaf make look nice on your roof.

Have all this ingredient to make wind turbine lying around. Some spoil servomotor which can use as generator. But don't no how to make a rectifier and some electronicx component to stabilize the voltage.

Just evening try out direct connect with LED. Can light up a LED. But burn out later due to higher rpm.

The mechanical and electrical is no problem for me. But the electronic side like what is the correct component to get is challenging for me. I m electronic noob.

Any pro electronic here?

I need pro electronic guy who can teach me how to convert the wind turbine generate voltage to DC usefull voltage that can charge the battery or run some DC thing. I watch those youtube that only said some diode or rectifier or capacitor.

But all this component have some spec and number. So which 1 is which 1 should I get.

I have no idea how to use at all.

Here some servomotor that can use as wind turbine. Some good, some spoil.

---

Added on January 13, 2012, 3:08 pmPut some gearbox?

What I know is, you need to dumb the load to some power resistor if your battery is fully charge.

This post has been edited by ozak: Jan 13 2012, 03:08 PM

No problem. If you connect in parallel, makesure the voltage is about the same. Any Amp doesn't matter.

Parallel - Amp + Amp = Total Amp. Voltage same.
Series - V + V = Total voltage. Amp same.

Wah, scary man.

Got to change design liau.

No need so kiasu lah. Even raise the teriff, still cheaper than solar here. Cause we still in subsidy.

Here still expensive. Try get from US which probably cost RM8-9 with shipping cost. Efficency vary depend on brand and technology. I see japan brand have higher efficency.

So far I see most complete DIY you can get from local is from here --> http://www.solarpower-mart.com

[CODE]Yup, not cheap. It can cost over thousand for small watt.

I try another DIY wind turbine. Maybe cost cheaper since I have some free parts.

---

Added on January 19, 2012, 12:45 pmHere is calculating yourself for solar pv size, battery and the charge controller.


The load perday - watt x hour = wh/day.
eg. 20watt for 12hr - 20w x 12hr = 240whr

Next is system losses like controller, cable etc. For mppt - 1.6 and pwm - 2.1
eg. 240whr x 2.1 = 504whr

Check our country sun hour. It is about 4-5hr of sun.

Solar panel size. - total watt hr / sun hr = PV size
eg. 504whr / 5hr = 100.8watt panel size. Round it up and find a panel size probably 1 panel size 120w or 2pcs in parallel 60w size.

Battery size. [day x daily watt] / battery voltage = Amp hour.
eg. [2day x 240whr] / 12V = 40Ahr @ 12VDC.
This battery calculation is keep in 50% discharge by no. of day. Never discharge the battery below 50% as it will damage the battery and shorthen the life. If you want to include the cloudy day, just add in another no. of day.

For charge controller, determine your panel amp. - panel watt / system volt = Amp charge controller.
eg. 120w / 12v = 10A. Get a charge controller larger than 10A. If want future expansion, get bigger size.

This post has been edited by ozak: Jan 19 2012, 12:45 PM

Probably some example of spotlight.

http://forum.lowyat.net/topic/2046166/+20

Wallet green first. We here not earn million.

52 million! No need consider green aleady. Full blast 24hr energy.

We worst than the UK?

Nothing much news about gov FIT tariff. But heard this year quota full already for cormersial/industry. For resident, not much news. Don't see gov promote it.

Many thing related to solar is still expensive here.

50w panel won't do much thing. It only can generate not more than 200whr/day. If you use for light a bulb or anthing continues, few hr will go off. Using for autogate still ok. Or anything that ON/OFF and not continues power it.

As for backup, is it not cost effective. Unless you don't consider the cost and do it for shiok. The cost add up for solar panel set, you can get a UPS to backup incase blackout.

You mean SEDA releasing 2012 quota end of this month for individual?

I hear mostly songlap by crony once quota out. Ordinary people like us no way can get.

I m interest to apply. But haven't decide how and when to install. On grid or off grid.

What I know is, you can apply first to fill in the quota. They have the time period to executed.

But this coming open quota is for 2012 or 2013? 2013 Fit rate is not so attractive.