Energy saving project

Post by **Lennart** » Thu Nov 13, 2008 2:47 pm

Hi all,

Does anybody know a source of cheap power efficient adapters? I've been looking at the offerings of Conrad, but efficiency is not something that is always obvious from the specs. And many adapters that I think are power efficient are in the 20 to 30 Euro range, which makes the Plugwise solution not that weird (it will be hard to find an adapter with a less than 0.2W idle consumption, I think), unless you accept the 3.5 W loss.

Lennart

Post by **TANE** » Thu Nov 13, 2008 3:31 pm

Lennart,
I have some adapters at home.
almost sure they are okay...will test them first and put the results online.

Post by **TANE** » Sat Nov 15, 2008 3:46 pm

Harrison update

After replacing the original power adapter with next one on the picture
idle consumption dropped back 0,6 watt

max usage when active was 5,9 watt..this will be different per situation depending on the size and weight of your curtains

This one will work but it's better to use a one with 800mA

[img]uploaded/Chak/20081115144517_power.jpg[/img]

Post by **Digit** » Sat Nov 15, 2008 3:50 pm

Where did you get them?

Post by **TANE** » Sat Nov 15, 2008 3:59 pm

It's a camera adapter
I'm also using the same one for my led G4 lights

can't find the same back..I think they are all same.
on the next url there are more.

http://www.videofrank.nl/netadapters-c-64.html

Post by **Bwired** » Sat Nov 15, 2008 4:10 pm

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Digit
 Where did you get them?

Post by **TANE** » Sat Nov 15, 2008 4:24 pm

this are nice ones

Bestnr.: 518346 - 89
Bestnr.: 518345 - 89

both are conrad numbers

Post by **Lennart** » Sun Nov 16, 2008 11:05 am

@Chak: thanks for measuring and the Conrad product numbers. Regarding these products: I can't find anything on efficiency and idle consumption in the specs. Did you verify this somehow?

Lennart

Post by **TANE** » Sun Nov 16, 2008 12:09 pm

@Lennart
I hope that Pieter can tell use more next week..
For the adapter that i have tested usage was 0,4 watt when nothing connected. for the original Harrison adapter is that 2,3 watt
if you are going to order at conrad
check the next url for additional discount of 7,5 euro..when total amount is more than 25 euro also no shipment cost.
http://www.retailmenot.com/view/conrad.nl

Post by **Bwired** » Sun Nov 16, 2008 12:36 pm

Go to the Conrad site and select the "Stekker-schakelnetvoedingen, vaste spann"
There are several brands switching powersupply's with high efficiency level.
See the pdf with the specs. I have ordered PhiHong 12 volt 2.5A for connecting more devices to it and some other small 12 volt for Harrison etc.
http://www.bwired.nl/images/how/phihong.pdf

Post by **TANE** » Fri Nov 21, 2008 11:28 pm

Hunt is going on...
Almost 10 watt usage in standby for my Auping bed motor
thats 85 Kw per year

When I want to use it .I have to switch it on with the remote IR7243 what is already there..for Homeseer control
On command will trigger a event what will turn on Plugwise plug for two minutes.

Lennart thanks for the tip

Post by **Bwired** » Sat Nov 29, 2008 11:15 pm

thanks to chak I found this topic again

result of my new powersupplys can be found here:
http://www.domoticaforum.eu/topic.asp?TOPIC_ID=1785

Post by **TANE** » Sat Jan 17, 2009 10:36 pm

Today I replaced all the inside components of one of the living room lights.
It was 36 watt TL what was using about 40 watt

Replacement components 2,40 meter led strip + 12 volt 1,5A adapter.

usage is now 12 watt

There is not so much light as the TL but it's okay for what I was looking for.
year saving is +/- 60 Kw

[img]uploaded/Chak/200911721229_lamp2.jpg[/img]

[img]uploaded/Chak/200911721298_lmap1a.jpg[/img] [img]uploaded/Chak/2009117212234_lmap4.jpg[/img] [img]uploaded/Chak/200911721230_lmap5.jpg[/img] [img]uploaded/Chak/2009117212939_lamp6.jpg[/img]

Post by **TANE** » Thu Apr 16, 2009 11:28 am

Replaced my old 3Com 5 port GB switch with new Green Dlink version
DGS-1008D

The new switch is using <4 watt with 6 ports in use.
Old one was using 12 watt after replacement of the power adapter still 8 watt.

I can add extra 40Kwh per year to my saving list
ROI is 4 year.

Next saving project is replacement of my 15 year old washing machine.
This will be a Energy label A++

Post by **TANE** » Fri Apr 24, 2009 11:29 pm

Hunt for saving is started again.
I have 3 X 12 Volt device in the "Meterkast"

FritzBox 12 volt usage 9 watt
Lava Device Server 12 volt usage 3 watt
Ziggo cable modem 12 volt usage 6 watt

Just installed 12 volt 2A adapter and connected FritzBox and Lava device server
Total usage with the new adapter 8,2 watt. Less than what Fritz only was using

Later this weekend I will also connect the Ziggo modem to the same power adapter