using Octane and electricy cost calculation

[rappet]

Ofcourse it is not specifically to the software OR being a high power consuming way of working,
but I thought working in Octane would be like having a microwave running all day long, almost every day of the year..
and I got curious to see the effect on my electricity bill.

Can you calculate with me to see if i am calculating the right way.
- In my town in the Netherlands a kWh is 8 eurocents = 0.08 euro for every kWatt (1000 watts) per hour
- I'll calculate having a 1500W Power rendering all day = 1.5 kiloWatt
- while working with Octane for let's say 8 hours and 20 minutes a day = 8.33 hrs
So one day at work will cost me: 0.08 x 1.5 x 8.33 = 1 euro a day.
That's not too bad for a microwave at full throttle all day long

Do you think I am right doing this calculation

[PolderAnimation]

Goedemiddag Rappet,

I don't think you use 1500W. I have a watt meter on my computer and I use 330 Watt when rendering with a gtx460 and a gtx580 at the same time.
Maybe you have 8 gtx580 in your computer I don't know, but I think you will use less .
(a gtx570 and a gtx580 together have a average power drawn of 370 watt, in my machine).

I used Octane quite allot, on 2 March I began to monitor my watt use. Until now I used 161.4 kiloWatt.
That is in 60 days.

360/60 x 161.4 = 968.4 kiloWatt in a year.
60 days = 43 working days, 161.4/43 = 3.8 kiloWatt a working day.

0.08 x 968.4 = 77.47 euro a year
0.08 x 3.8 = 30 cents on a working day

When using Octane on a regular base.

Bottom line, for 1 euro or 30 cents (depends on the calculation) it isn't very expensive .

[rappet]

Goedenavond Polderanimation,

Indeed, the cost of electrictiy ain' t much. I was wondering and now we know
Good to hear your powerconsumption while rendering isn't that high.
I'll be having 4x 580's and some people say 1200W might not be enough

GreetZ

[PolderAnimation]

Nice 4 x 580, well what i saw was that a 570 and a 580 together have a average of 370 watt (over 30 min rendering) but when octane starts it first will hit around 620 watt. Dunno why this is but i can imagine that 4 580 will hit around 1200 watt at the beginning.
None the less better save and sorry.

[Refracty]

Get a watt meter so that you can measure exactly the amount of energy. The cost around 15€ and very often you can use them to measure the costs by selecting your kwh price.

[mbetke]

I use a watt meter too to keep track of my monthly costs on my workstation. It best way to measure and have some good recording features.

[rappet]

Get a watt meter so that you can measure exactly the amount of energy. The cost around 15€ and very often you can use them to measure the costs by selecting your kwh price.

\

Hi Refracty, good tip to kill curiosity

I saw your working with 3x GTX590 + 1x GTX 580. I wonder: do you work on watercooling or aircooling only? Aircooling will be a lmore electricity consuming I guess. (and noise).

[rappet]

Hi ther,

I have to set this straight...
The costs is not 0.08 euro for every kWatt (1000 watts) per hour.. as I started this post with that price.
.. today it is 0.20 cents (I have to include taxes).
I did some real testing with a Energy consumtpion meter and am trying to get a picture of real costs.

If I have my basic devices on like router, NAS, telephone, sound, laptop, and my main PC (with 4x580) is turned on without doing anything special teh power draw is 420 Watt/h.
Having my PC on like this on a working day for let 's say 8 hours, then the cost will be:
8hr x 0,42kW/h x 0,20euro= 0,67 cents a day. (0,084 cents an hour)

when rendering full power with 4x580 the powerdraw is 1296Watt/h.
That 's about 876W/h more because of rendering in Octane.
Rendering will cost: 1hr x 1.296kWatt/h x 0,20euro= 0,26euro every hour

Now when adding my slave machine with 3x 780 will give powerdraw 2133 Watt/h
Rendering will cost: 1hr x 2.133 kWatt/h x 0,20euro= 0,43euro every hour,
that's 3,40 euro on a 8hr working day

let's say I'll be working 48 weeks, 5 days a week: that's 240 days
0,67euro x 240 days = 160 euro per year for only having one PC turned on.
Let's say I'll be rendering about 20% of that time (in practise it will be less rendering full throttle, but I liker to make assumption):
0,67euro x (240 days*80%) + 3,40euro x (240 days*20%) = 128,64+163,20 = 291,84 euro
That is less then a euro a day... that's not too bad


let's say for fun I'll start a render farm and I will be rendering all day long 48 weeks, 7 days a week: that's 336 days;
3,40 eur x 336days = 1156 euro per year for rendering full throttle.

Probably I'll get back here with real measured power consumtion of a week or month work,
that's better then assumptions

cheers,