Posts Tagged ‘data centers’

How to save on water costs in your data center

Sunday, April 15th, 2012

Two weeks ago I spoke at the Recycled Water Use and Outreach Workshop in Sacramento. I know what you’re asking, “why is a data center guy talking at a recycled water conference?” Well, funny that you asked.

First of all, most of my ultra-efficient designs use water for cooling, often indirect evaporative systems. Hence, we trade energy use for water use. Now water is far less costly than energy and often has a much lower carbon footprint and other environmental impact per unit of cooling than electricity. But it always is a bonus to use recycled water, as it has an even lower environmental impact than standard potable supply. Of course, all water IS recycled. There are only a finite number of water drops on this wonderful planet that sustains us and every one of them has been around the water cycle block at least a few times, so in essence, all water is recycled.

As we use water to help or entirely cool our data centers, water plays an even greater role in data centers to achieve the greatest efficiency. Hence, water quality, capacity, cost and reliability of service are just as important as any other valuable input into our system of operations, making these factors and the future cost of water even more important into our site selection decisions. I’ve seen water cost between $.10 to $10.00 per 1,000 gallons—wow! What a spread! And I’ve seen it increase at 40% rates per year! Wouldn’t it be nice to have a consistent price from a non-profit water system that YOU have control over and full visibility into all costs? And one that is built to meet the high-availability and quality standards for data centers, and is DEDICATED to data center use? That is what you get at the Reno Technology Park!

And it’s not just the supply but also the discharge of water. I learned much about water discharge challenges in Quincy, WA, when building the Yahoo! data center there, as the local water utility wanted Microsoft and Yahoo! to pony up $10-15 million to pay for a new water treatment plant to handle the QUANTITY of our discharge water. Our quality was fine, but the quantity was too much for the current systems. This led me to find solutions to reduce the cooling tower blow down and avoid this $10+ million unplanned cost to our project.

I’ve always been a fan of chemical-free water treatment systems, but when looking for new solutions to solve our problem, I came across WCTI, which makes a chemical-free system quite different than other systems, and could provide us a system to get the cycles of concentration up over 200!!! Yes, that is over 200 cycles of concentration, which means nearly zero blow down! Which means it lowers water consumption by 30-50% and avoidance of paying for a new water treatment plant for the city. And it’s truly chemical free (even no biocides), which means it’s safer for people and the environment, as well as much lower cost. Keep those chiller tubes and/or pipes clean!

This is one of the comprehensive solutions that we provide for our clients at MegaWatt Consulting. It’s about saving money, and water is just another critical part of our system. Reach out to us to learn more!

We learn our skills in and out of the work place

Monday, September 19th, 2011

From time to time, I write a little about non-data center or energy things, just to mix it up and share with folks. Sometimes it is these blogs that generate the most interest and conversation from folks. Plus, I do believe that since we all work together, it’s nice to share some of our personal life with each other. After all, we are people working together based upon relationships, it is these things in our personal lives that drives us to work hard, and thus, they are essential parts of who we are as people and consequently, these personal things affect our daily work lives and relationships.

I also find that many of the things that I do in my personal life influence my work life. I’m sure we all find that at times, we reach an epiphany when walking the dog, talking to our spouse or friends, or some other activity that drives a decision or direction in our work the next day. I had one two weeks ago when talking with friends over dinner. But, that is not the topic of this blog.

Instead, it goes back another week but really starts when I was in college. I have always liked to push myself physically, and I get a lot out of those endorphins from a good physical challenge but also one with a mental challenge.

So I started mountain biking in college, riding longer and longer, more often and more often, until I was riding 365 days per year and training about 30+ hours per week. That on top of my 7-8 course load each semester (a consequence of earning multiple degrees simultaneously) and working part to full time year around. What can I say, I like to stay busy (also was on sports teams in addition to cycling, several clubs, an RA, etc, etc).

I then turned this “hobby” into training for races, became sponsored (it took me years to finish all those boxes of PowerBars I was provided), and finished races often in the top 10 out of hundreds or thousands of finishers. I earned enough points in my last year of racing and college to be in the top 10 nationally.

However, this, like many other hobbies, wasn’t my calling for a profession, and often hobbies and professions don’t mix very well. But I still get out to ride as often as I can and still love it. And do a race or two each year, purely for fun but also competitive. So on August 27th & 28th, I completed another 24-hour mountain bike race. I believe this is around my 6th, but I can’t remember nor have I been keeping track.

People ask how a 24 hour mountain bike race performs. Well, you ride a lap, usually about 10-15 miles long–which is usually takes about 45-90 minutes to finish–all on dirt, often much single track, climbs, descents, technical sections, fast sections, and complete as many laps as possible in 24 hours. Races can be completed as a solo team, or with up to 5 people on a team, trading off each lap in rotation, making each lap an all out sprint, then resting, downing as much water as your body can absorb, repairing your bike, recharging light batteries and trying to eat and sleep in the 45 min to 3 hour rest time before the next lap. Usually races start at about noon and end at noon the next day. Powerful bike light systems are used in the night laps, and the key is efficiency and speed while staying upright. Crashes not only hurt people–broken bones are quite common and sometimes trips in an ambulance for those racers that push their speed too fast for their ability at the time. Ability changes much after hours of riding, little sleep, little food, dehydration, and tired bodies. And especially at night when visibility is limited to a spot of light 5-20 feet in front of you as speeds exceed 30 mph in faster downhill and flat sections with still plenty of rocks, ditches and other obstacles to avoid.

The key to these races is to manage energy and speed to skill. Those that push too hard in the beginning of the race (a common mistake) or on any lap typically burn out before the race ends and either can’t finish it (often just finishing the race allows one to move up in the score board) or get hurt along the way.

So the key to 24-hour mountain bike racing is maintaining energy for 24 hours of riding with little sleep. It becomes somewhat of a mental game, especially in the late night laps. But even more so, a continual focus on the efficiency of every single pedal stroke–all 100,000 of them–and on the rest of the body, especially the lungs and heart. One must constantly “economize” while pushing their bike and self as hard (and consequently fast) as possible up every hill, down every descent, and around every lap to maintain the fastest average lap time. So any one slow lap kills the average, and hence, efficiency with the greatest speed. My lap times varied by less than 10%, even though temperatures ranged by 50 degrees F, some were in full sun, some in full dark; some with heavy traffic of other racers, some with passing  another racer only every 15 minutes; some with full energy, and last lap with maybe an hour of sleep over 24 hours, little food, and likely mild dehydration and most certainly tired legs and body, and even one with a mechanical and another with a flat tire.

In the data centers I design, efficiency doesn’t change much between hot and cold weather, day and night, packed full or empty of servers, mechanical failures or perfect operations. The key is being as efficient as possible all the time, not matter the adversity. It’s all about economizing and energy efficiency, just as my continuous focus in designing and operating data centers. I love it!

Here is a video of my most recent 24-hour race, the Coolest 24-Hours, which took place end of August in Soda Springs, CA (Donner Summit area of the Sierras). The race raised money for those dealing with cancer. In this video, I am the first rider out of the start of the 24 hour racers, wearing silver jersey, black and yellow cycling shorts with USD on the side (I still fit in my college cycling team shorts almost two decades later), red single speed 29″ Niner bike. I enjoyed being in first place for about the first mile before some of the racers pass me. You can see me do a little jump off the pavement start onto the dirt and also my buddy and fellow racer Stewart do the same in his third place position with red & white Niner Bikes jersey. I posted a photo of my aunt along the course–who died of cancer not long ago–which many photos of survivors and victims can be seen staked in the ground at the first turn. I finished the race with a smile, a dirty face, a dusty body, a respectable finish, and another lesson in efficiency. Enjoy the video and getting out to learn more! Here is the video: The Coolest 24 Hours, 2011–KC leads the pack at the start of the 24 hour race