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Go Green, don’t leave your chargers plugged in?

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There are certain appliances that suck power even when they are shut off like TVs, microwaves, and gaming systems. Anything with a little light or digital clock on it is sucking power unnecessarily, and that costs you money.

The other set is the chargers and the most popular are the mobile and laptop chargers. Because of our laziness and ignorance, we often leave these chargers plugged in when disconnected from the gadget. I too used to do it earlier. I would leave my mobile charger hanging out of the power socket or leave the laptop charge plugged all night, while the mobile or laptop was not connected. But it seems leaving the appliance plugged in even after its charged is worst than leaving the charger plugged in.

According to a study a mobile phone charger draws an average of 3.68 watts when the phone is on and charging; 2.24 watts when it is on and charged; and 0.26 watts when it is just hanging out in the socket. So leaving your charged phone attached to the charger uses 10 times the energy that leaving the charger dangling would. Now the wastage in terms of cost may not seem to be significant for you, but when you accumulate it across all the mobile users it becomes very significant.

Laptop too is no different. It draws an average of 44.28 watts when it is charging; 29.48 watts when it is charged; and 4.42 watts when we let the charger dangle. However dealing with laptop is little different than laptop, because keeping them plugged in can actually be a good thing – it’s more efficient to use that power to run the machine than to use it to charge a battery which then runs the machine. There is something else you need to consider for laptops – HEAT. The temperature can shorten the battery life. So having the battery fully charged and the laptop plugged in is not harmful, because as soon as the charge level reaches 100% the battery stops receiving charging energy and this energy is bypassed directly to the power supply system of the laptop. However in a normal usage, if the laptop doesn’t get too hot (CPU and Hard Disk around 40ºC) you can leave the battery in the laptop, but in an intensive usage which produces a large amount of heat it’s better to remove the battery from the socket in order to prevent unwanted heating and let the laptop run on direct power. In fact if there is not much of power problem one should remove the battery and run the laptop on direct power to get a better battery life.

So here’s what you can do:

  • Do not leave charges hanging on the power socket when not in use

Written by Sushil Katre

February 6, 2013 at 1:09 PM

Solar Cell and Solar Panel Manufacturers in India

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Here’s a list of Solar Cell and Solar Panel manufacturers which I have compiled for a referrence. Incidentally what I read online is that not only Indian Manufacturers but other majot manufacturers in USA and Europe are not able to beat the cost of Chinese Manufacturers.

Sl. No. Name Address Phone Email/web Sites
1 Ammini Solar Pvt.   Ltd. Plot No. 33-37,   KINFRA Small
Industries Park, St. Xaviers College PO,
Trivandrum 695 582
Phone :   04712705588
Fax : 04712705599
2 Bharat Electronics Limited 116/2, Race Course Road,
Jalahalli, Bangalore – 560015
Phone : 080 25039300
Fax : 080 25039305
3 Bharat Heavy Electricals Ltd.   Electronics Division Post Box No. 2606, Mysore   Road,
Bangalore 560 026
Phone 08026998553
Fax :
080 – 26744904
4 Central Electronics
4, Industrial Area
Sahibabad 201 010. U.P.
Phone : 01202895151
Fax: 01202 895148/42
5 EMMVEE Solar Systems Pvt Ltd. 55,6th Main 11th Crosss   Lakshmaiah
Block Ganganagar, Bangalore-560024
Phone: 080-
Fax : 080-23332060
6 Euro Multivision Ltd. Euro House, 2nd Floor, Chincholi   Bunder Road, Behind Inorbit Mall, Malad (West) Mumbai, India 400 064 •Telephone: +91-022-4036   4036
•FAX: +91-022-4036 4037
7 Flexitron 1234, 22A main, 11A cross,   Sector-1, HSR Layout, Bangalore, Karnataka India 60102 •Telephone:   +91-80-25721284
•FAX: +91-80-25721284
8 India Solar Solutions Pvt Ltd A 15/A Mayapuri Industrial Area   Phase 2, New Delhi, New Delhi India 110064 Telephone: +91-9971933844
9 Indosolar Limited
10 Jitendra Motors Pvt. Ltd. Arihant plaza B-88 M.I.D.C.   Ambad Next to Hotel Taj Residency, Nasik, Maharashtra INDIA 422 010 •Telephone: +91 0253   2384432
•FAX: +91 0253 2384632
11 Kotak Urja Pvt. Ltd 378, 10th Cross, 4th Phase,   PIA,
Bangalore 560058, Karnataka. India
Phone : 08028363330
Fax : 08028362347
12 Maharishi Solar Technology Pvt.   Ltd A-14, Mohan Cooperative   Industrial Estate, Mathura Road, New Delhi – 110 044 Phone : 011 –
26959800 /26959701
Fax: 011-26959 669
13 Microsol Power P Ltd 605, 6th Floor, Sapthagiri, SP   Road,
Begumpet, Hyderabad
Phone : 04027766917
Fax: 040 – 27730546
14 Moser Baer Photovoltaic Ltd 43B, Okhla Industrial   Estate,
New Delhi – 110020
Phone 11 41635201 – 07, 11   26911570 – 74 Fax : 11 41635211, 11 26911860
15 NanoBright Solar Plot# 98, Huda Heights, RD#12,   Banjara Hills, Hyderabad, A P India 500034 Telephone: +91-40-42602063  
16 Natural Lights Pvt ltd F – 42 Sevaj farm, Jaipur,   Rajasthan India 302015 0141-2210278
17 NEPC INDIA LIMITED 35, WALLAJAH ROAD, CHENNAI,   TAMIL NADU INDIA 600002 •Telephone: 91-44-28524041
•FAX: 91-44-28524709
18 PaBhuVan Inc. #9-30/2, Near Saibaba Temple,   Ravindranagar Colony, Habsiguda, Hyderabad, AP INDIA 500007  
19 Photon Energy Systems Plot No. 775 –K, Road No 45   Jublee Hills
Hyderabad – 560033
Phone : 04055661337
Fax: 04055661340
20 PLG Power Limited
21 Premier Solar
Systems (P) Ltd
41 & 42, Sri Venkateswara ,   Cooperative Indl. Estate,Balanagar, Hyderabad 500 037 Fax: 040 – 2271879
22 Rajasthan Electronics &   Instruments Ltd 2, Kanakpura Industrial Area,   Sirsi Road, Jaipur 302 012 Phone : 01412203038
Fax: 0141-2202701
23 M/s. Sun Times E-3, Lajpat Nagar – II
New Delhi – 110 024
Fax :011-26839444
24 Solar Semiconductor Limited Plot NO. 254/A,H.No.   8-2-293/82/L/271/A,
MLA Colony,Road No.12,Banjara Hills
Phone:  +91 40 67303000

Fax:      +91 40 67303004

Sales –
Purchase –
25 Surana Ventures Limited 5th Floor, Surya Towers,  Sardar Patel Road,  Secunderabad – 500 003,  A.P. Phone: +91 – 40 – 44665 – 700
26 Tata BP Solar India Ltd Plot No. 78, Electronic City,   Hosur Road, Bangalore – 560100 Phone : 08022358465
Fax : 08028520972/28520116
27 Titan Energy Systems Ltd 16, Aruna Enclave, Trimulgherry,   Secunderabad – 500015, AP INDIA Phone : 04027791085
Fax: 040-2779 5629
28 USL Photovoltaics PVT Ltd 1/473 Avinashi Road,   Neelambur,
Coimbatore 641 014. India
Phone : 04222627851
Fax : 04222628504
29 Udhaya Energy Photovoltaics (P)   Ltd 1/279Z, Mudalipalayam Arasur   Post
Coimbatore – 641 407
30 Udhaya Semiconductors Limited 1/482, Avinashi Road, Neelambur,   Coimbatore India 641 062 Telephone: +91-422- 2627545,   2627003, 9994404511
31 USha (Inda) Ltd. 12/1, Delhi Mathura Road,   Faridabad, Haryana India 121003 •Telephone:   0091-129-5277641
•FAX: 0091-129-5277679
32 VK Solar C-38, Ground Floor, Greater   Kailash-1, New Delhi, Delhi India 110048 91-9718511250
33 Webel SL Energy Systems Ltd Plot No. N1, Block GP, Sector V   Salt Lake Electronic Complex Kolkata 700 091 Phone : 03323578840
Fax: 033-23573258
34 XL Telecom Ltd 335 Chandralok Complex, SD   Road,
Secunderabad, Andhra Pradesh 500003
Phone : 04027849094
Fax : 04027840081


PS:  I realized the email IDs are not getting displayed properly, here’s the excel file Solar Cell-Panel Manufacturers India

Written by Sushil Katre

January 21, 2013 at 4:40 PM

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