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I am a full time specialist Physics tutor operating in Klang Valley. I've been educating student for more than 10 years. My specialty is to transform student that had failed their physics subject into a better result. Even some of them managed to get an A in their final exam, You can read their testimony in this blog. I provide home tuition for physics subject to those living nearby KL especially around W.Maju, Ampang,Melawati and Setiawangsa. At the same time i 'm giving online tuition to all malaysia & overseas student. For tuition centre looking for a physics tutor, i'm also able to give seminar and conduct weekly classes. Meanwhile,for school teachers who are organising physics seminar, i am happy to assist u in that aspect. If u have enquiry on my service, do contact or whatsap me at 017-2877589 or email me at celikfizik @ gmail . com

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Thursday, April 23, 2020

SPM Physics: Solar Energy


It is almost a year and a half since I 've been using  10 solars led lamp to lights up the outdoor area of my house. Each lamp is rated with 5W if it is fully charged by solar energy.
The lamp is using LDR in which it lighted up automatically when it is dark.
Usually it starts from 730pm and the battery will last up to 6.30am. 
So total hours for a day will be 11 hr.
Now lets calculate how much energy in kilowatt-hour is consumed a day for each lamp:

Total energy consumed a day by one solar LED lamp:
Energy,E = P x t
            E = 0.005kW x 11hr
            E = 0.055 kW hr 

Since I am using 10 lamp..so  total energy per day will be, 
            E = 10 x (0.055)
            E = 0.55 kWhr.

Imagine for a year in average will be 365 days..
So total energy used per year will be….  
           E =(365 days) x 0.55
           E = 200.75 kWhr.

Usually TNB's average rate for  1kWhr =RM0.218
So for a year, On average these 10 lamps should cost me… 
           RM0.218 x 200.75 = RM43.76

The best part is I don’t have to pay anything to TNB as I am using a free source of energy which is the solar energy from the sun.
Can u imagine if all our electrical appliances are powered by solar energy? How much money will be saved a year? The most important part is it is environmentally friendly.
 Let's fully utilize solar energy.


For those who would love to enquire my SPM physics home tuition or online tuition service, u can Whatsapp me @0172877589

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