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.

Hi, Sorry noob here in Solar Power....

Care to tell where to buy all this stuff? DIY i mean.... Plan to do some DIY for Outdoor spotlight with sensor

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

thanks... but ... quite expensive...

It's okay all are noob at some point.

Do check my earlier post, got parts from almost everywhere. Place like mudah, solar power mart and LYN have sellers that carry most of the things you need. I also shopped around in places like Jalan Pasar or around my neighborhood hardware store.

https://forum.lowyat.net/topic/2046166/+160#

Solar power mart is the easiest option because they have complete kits that are plug and play. For myself I decided to build from scratch and learn how to calculate the system size etc.

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The first step is to decide your system sizing, don't rush into buying anything.

This site is helpful to determine your system sizing:-

http://www.solarelectricityhandbook.com/solarcalculator.aspx

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Added on January 19, 2012, 11:21 amYou might be surprised to learn this, my system with just the main component, solar panels and battery comes up to RM1650.

That is not including the lights, cables, cable lugs, waterproof housing and so many others.

If calculate the cost of each component for 100W Professional Solar Power System Kit, RM1998 is not that expensive.

BTW I have a spare 10watt solar panel and 3 x 7ah batteries for sale. If you want those please message me.

This post has been edited by aaronpang: Jan 19 2012, 11:21 AM

[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.

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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

there is a DIY kit @ http://www.solarpower-mart.com

cost abt MYR 1.2k .. for 50 watt system, i think that is a good start..

or the professional MYR 2k kit for 100 watt system

would be good also, to get an intro complete kit..

or you really wan to get into it for cheap for testing 1 light bulb can get the 20 watt system for like 600 MYR...

although initial cost for the DIY might be a little high.. at least u can familiarize yourself with the parts and how it all fit together before you embark on powering your whole house

Well it could be chaper if the system is build for sensor based spotlight... if that is what kuluuluk wants.

Since the spotlight's are only switched on for brief periods a smaller system would be cost effective, he probably doesnt need a 50watt system.

I'd reckon he can DIY one for around RM500...

Thanks guyz... actually i found what i want at the site that you guyz posted. minispotlight...

way way cheaper

they are still far from achieving the best of 98% per cell, will take a while. right now efficiency still not there vs price value.

well we gotta start somewhere.. maybe by the time the efficient raised to a resonable level..

i can open my own business specializing in installing solar panels/power system yeah to green

the best bet is to go LED lighting dealership first then solar will come to generate

Probably some example of spotlight.

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

LED ah.. not sure how's the longevity of the LED from china one.. anybody got tested > 10k hrs ?

Yo, Get from Malaysia made 1 la.....

at least 3 years warranty.... and one on one swap if faulty found on the LED itself

Look; with LED as the end consumer line; & more effiy products; energy consumption surely can be at cheap isnt it?

Here`s a video, I find it kind of hilarious about the energy bills we are paying- not even market price.



small summary:
Small inverter out grid; not certified by SIRIM (regulatory issues), why isnt worth spending money for this case.

You know if most of us have the green. I'm sure alot of us will implement this too...

Wallet green first. We here not earn million.

if your somebody from p.klang that won the 52 million jackpot..

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