Tag Archive: Green


Just logged in to see a few improvements / updates to the http://my.currentcost.com dashboard. Compare daily usage for week periods:

Record gas & water consumption (not tried these yet):

And finally- record consumption cost (to the nearest penny isn’t going to give very accurate cost estimates but it helps):

Meanwhile Enio (http://www.enio.co.uk) has now been down for over a week.

L

New Virtual Lab – Part 1

Since I moved (about a year ago) I have been without a virtual lab- the old lab ran on 2x Dell Poweredge 2950 III & 1x HP Proliant DL385 G2, noisey and power-hungry! My intention was to run power to the garage so I could bring the lab back to life, but rising electricity costs and some interesting posts on Jason’s blog persuaded me to order some new, smaller, quieter and more green/efficient hardware:

£163 – Supermicro X8SIL-F (the motherboard Jason recommended and many seem to’ve reported success with)
£255 – Intel Xeon X3470 Quad-Core 2.93Ghz (Socket 1156)
£026 – Akasa Intel 1U 1156 CPU Cooler (AK-CCE-7107BS)
£123 – 4x 4GB Kingston 1333Mhz ECC (KVR1333D3E9S/4G or KVR1333D3E9SK2/8G)

I already had some spare 1U Supermicro chassis with power supplies (512L-200B) and USB pen drives laying around for the hypervisors.

I initially ordered one of the above-mentioned kit from LambdaTek (I intended to get comfortable with it before ordering more). Unfortunately the motherboard was on back order so I decided to look around for another supplier. I couldn’t find anywhere cheaper or with stock so i picked 2 up from an international seller on eBay. While I was at it I grabbed another x3470 from Amazon (£260), another 16GB of RAM from Crescent Electronics (£107) and another Cooler (this time the Gelid Slim Silence IPlus Low Profile Intel CPU Cooler from Cool&Quiet @ £20)

Part 2 to follow! Just a quick note about the Akasa Cooler- i’ve deliberately put a line through it because you should NOT order it (it’s no good- i will get onto that in part 2)

L

I’m still yet to find a decent replacement for Google Powermeter (i’m starting to think i’ll need to write something myself… php/mySQL possibly?)

Anyway- i’ve noticed my baseline (always on) power consumption is pretty high so picked up an extension lead from maplin http://www.maplin.co.uk/power-strip-with-energy-and-co2-meter-348228 (£12.99) with a built in display (current consumption, max consumption, cumulative consumption, power factor etc) to check all of my devices to see where I might be able to realize some improvements.

Here’s what I found with some commentary:

Fish Tank Pump: 4W (Reasonable & not really optional)
32″ TV Standby: 4W (Not great but it’s normally turned off at the mains not left on standby)- On: 110W (Pretty poor but it is relatively old tech)
Sky+ Box: 20W (Appeared to draw the same power whilst in standby and whilst in use)
Clarke Tech 9000 HD Satellite Receiver Standby: 26W- On: 31W
42″ LG TV Standby: 1W (Expected for a relatively recent model)- On: 68W (Not bad considering it’s not LED backlit)
Boiler Idle: 3W
50″ Panasonic Plasma TV Standby: 20W (Very poor, but unsurprising for old tech)- On: 400W (ouch!)
Mordaunt Short Subwoofer Standy: 3W (Seems reasonable with the auto-on feature active)- On: 18W
Acer Revo r3610 XBMC HTPC Off: 3W- Idle: 32W- Watching a movie: 28W (why it uses more power when idle than whilst playing a movie i will never know?)
Mini TP-Link 5port Gigabit Switch: 2W (impressive!)
Linksys Enterprises Managed 24Port Switch w/POE : 41W (expected this- may do some research into alternatives)
4×4 HDMI Matrix Switch: 14W
Nintendo Wii Off: 3W- On: 16W
Onkyo 608SR Amp Off: 0W (impressive!)- On: 45W- Playing Loud: 55W
Netgear Router: 10W
HP Proliant Microserver in use: 40W (impressive!)
Giant American Style Samsung Fridge Freezer: 100W (pretty good from what i understand)
Dell Poweredge 2950 III Off: 30W (ouch- this is with both PSUs plugged in- i have already ordered replacement Supermicro servers which I believe use 40W roughly whilst on/idle!)- On: 350W (ouchhhhhh!)

That’s about all… We know the usual appliances: Kettle, Oven, Microwave, Toaster, Washing Machine, Tumble Dryer, Hover, Hair Dryer etc draw ridiculous amounts of power but I was predominantly interested in always on devices. I will try and add some makes/models above where i haven’t already put details. If you can recommend any green devices please do share!

L

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