DC wiring in House
43 views
Skip to first unread message
sanjay kumar
May 28, 2012, 12:59:27 AM5/28/12
to Green-India: India's Energy Future and Sustainable Living
Is it better to have DC wiring or partial DC in house with Solar
Energy PV power supply with DC motor fans and lighting System. The TV
and Computer should also have a different power input unit. That way
the losses of conversion and inversion can be avoided. As most of the
devices are electronic and as dc motors are more efficient than the ac
motors. Don't you all think there must be a paradigm shift in small
electricity users like households.
The households can have battery units that can have hybrid charging
from electric power from utility companies and solar power from roof
top systems.
This way the total energy requirement will also reduce.
Energy PV power supply with DC motor fans and lighting System. The TV
and Computer should also have a different power input unit. That way
the losses of conversion and inversion can be avoided. As most of the
devices are electronic and as dc motors are more efficient than the ac
motors. Don't you all think there must be a paradigm shift in small
electricity users like households.
The households can have battery units that can have hybrid charging
from electric power from utility companies and solar power from roof
top systems.
This way the total energy requirement will also reduce.
Manu Sharma
May 28, 2012, 4:48:37 AM5/28/12
to green...@googlegroups.com
This has come up on Green-India in the past though I can't find the post. Basically it's a good idea to have 12V DC wiring in addition to 220V AC particularly for lighting, fans and electronic equipment. You'll need to retain 220V AC as you can't run high powered devices on 12V DC.
By reducing the AC load you'll minimize the conversion losses though DC wiring cost will be significant and you may have to purchase new DC appliances.
For a great discussion on this, read this post on Treehugger blog and especially the comments underneath.
Manu
--
You received this message because you are subscribed to Green-India
to discuss India's Energy Future and Sustainable Living.
Green-India
http://green-india.in
Rules & Disclaimer (Important)
http://goo.gl/Te9d2
To unsubscribe, send email to
green-india...@googlegroups.com
Teckkee shih
May 28, 2012, 5:23:26 AM5/28/12
to green...@googlegroups.com
Some analyst estimate about 1/7 of total power is produced by DGs in India
India's transmission lost is about ~40% (~10% in other countries) from the power plants to your homes. From the homes to appliances another 30% is lost through converting from AC to DC. In theory only 30% of power produced is actually used.
A smart DC micro grid is the way to go.
Please check out the above.
TK
Reply all
Reply to author
Forward
0 new messages