Second release of statement by the company a few days after the first...
Again, their basis for saving the “up to” $20 million in electrical consumption thesis:
1. 32 Port Top of Rack Switch
2. Electrical savings per interconnect of 28 watts per each over existing technology
3. An estimated savings of “almost 900 watts per 32 Port Top of Rack Switch ( the interesting part here is to save the 900 watts you simply divide 900 watts saving by the 28 watts in savings PER cable and you come up with about 32 CABLES for this 32 port type of equipment they are using to create this “up to” $20 million in annual savings PER center assumption)
4. It takes 1,000 watts to create a kilowatt ( kilowatts are measured by the hour from the local utility and price per kilowatt hour can average from (.06-.12 cents per hour of usage, pretty sure these guys run 24 hours per day)
5. I believe we estimated from various related published articles they are about 100,000 servers per large Data Center on average
Here is where I need some help with my numbers:
lets use .06 cents as the kw charge per hour from the utility company (1000 kw x .06 cents = .60 cents per hour in utility costs)
900 watts (savings) x .06 = .54cents per kw hour in savings
.54 cents savings x 24 hours daily usage = $12.96 in savings per day per 32 port rack
$12.96 per daily savings x 365 days annual usage = $4.730 in annual savings per 32 port rack
$4,730 savings x 100,000 severs = $47, 370,000 in savings
$47,300,000 annual savings x 90% number of cables they state can be replaced with their cables = $42,570,000 Million in annual savings
My calculations is over twice the savings figures that they are using????
So, where is the math wrong here. The number of cables per 32 port is easy math to calculate based on the savings they indicate .
Also the number of cables used is easy math based on the same data they provided for the equipment stated.
So somewhere here I am a bit ignorant about somethings that’s causing the math to be double their assumption. I know YPL has stated there is different equipment architecture used (spine and leaf) which uses a smaller number of interconnects, but THE company is using 32 port for this $20 million in savings.
This was a lot of work on my Saturday morning, time to get busy! Would be really cool if some of you math or tech wizards would help me/us figure out where these calculations are off.
The take away here is that there a heck of a lot of cables being used currently with out dated technology to create this kind of electrical savings....
The Green Data Center Market is projected to reach a revenue of over USD $25 billion by 2024. The high focus of government bodies across the world pushing organizations to reduce their carbon footprint and electricity consumption is driving the demand for the green data center market. For instance, the growth of the Chinese digital economy and the rise in conventional data center construction projects in the country have led to the government launching initiatives to enforce the adoption of energy-efficient technologies,” reports Digvijay Deshmukh, Researcher at Marketstudyreport.com1.
Spectra7’s GaugeChanger™ enabled Active Copper Cables (ACCs) can replace Active Optical Cables (AOCs) for lengths up to 7m, which account for over 90% of the links in a typical data center. At a savings of 28 watts per interconnect, this adds up to almost 900 watts per 32 port Top-of-Rack switch (which depending on electricity prices2 could reduce operating expenses by up to $20M a year per data center). A large data center using Spectra7 technology can save several megawatts and over 10,000 metric tons3 per year of carbon emissions by incorporating ACCs over AOCs.
Read more at https://www.stockhouse.com/news/press-releases/2018/08/01/spectra7-launches-eco-link-initiative-to-lower-hyperscale-data-center-carbon#ycRPcLpZBefyHGya.99