Server energy comsumption calculations

if i use this online calc with the wattage below from a meter i have on the server
http://www.eu-energystar.org/en/en_008b.shtml

with the same wattage and always on i get ¬1150.5 per year but the below calcs give me ¬258.84 per year


can someone please sanity check this cheers


HP ML 350 G5

volts x amps= watts

235v x 0.85amp = 199.75

24 Hours Per Day X 30 Days per Month (average) = 720 hours per month
199.75 Watts Per Hour X 720 hours per month = 143,820 Watts per month
143,820 Watts per month / 1000 Watts per Kilowatt hour = 143.82 kW Hours
143.82 kWh X  .15 cents per kWh = ¬21.57 per month
¬258.84 per year
¬21.57 / 720 hours = .0299 euros per hour/ 2.99 cents per hour
nostrasystemsAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

CallandorCommented:
That calculator is assuming there are 240 days in a year - I guess it only counts business days and assumes equipment is turned off on weekends and holidays. If it assumed 365 days a year, total kW would be 1749.8, not 1150.5.
 
Also, your 258.84 figure is an annual dollar cost, not a total kW use in a year.
0
nostrasystemsAuthor Commented:
but does it cost 250 or 1000 to run an entry level server per year always on?
0
CallandorCommented:
For 365 days/year, that's 1749.8 * $0.15 cost per kW = $262.47 - I don't know why the calculator is using a $1.00/kWhr rate.
0
nostrasystemsAuthor Commented:
how can u see it using 1 dollar an hour? its default is 0.11 euro cents?

so a milloin percent if the watt draw is 128watt on my meter its roughly 250 euro for 365 x 24 x 7

Please confirm thanks for your help
0
CallandorCommented:
The total power usage it calculates is 1150.5 kW-hr/year for a small server (assuming 240 days/year) and the total cost it comes up with is 759.3 euros.  I can't see how 0.11 euros/kW-hr can get you to this total, because I calculate it as 0.66 euros/kW-hr (the $1/kW-hr was a mistake because I didn't have it set to server).

For 128 watts, the cost is even less, because I was using 199.75 watts, so it's 128 x 365 x 24 = 1121.28 kW-hr/year, and at $0.15 per kW = $168.192.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Hardware

From novice to tech pro — start learning today.