Cleaning Up Data Centers with a Fuel Cell

Data centers have now grown into a new nation by themselves. According to a report by Greenpeace in April, the energy consumed to run centers is higher than the annual power consumption of some of the developed nations like Germany and Canada.

There is no doubt that data centers consume a tremendous amount of energy, considering the prevalent energy crisis the world is facing; their dependence on fossil fuels for energy poses a huge threat to human life.

This very threat has forced many at Silicon Valley to go back to their drawing boards and develop alternative solutions to meet the ever growing demand for energy to power data centers. Efficient energy utilization and use of renewable sources to power is the primary objective of the action plan.

Apart from energy crisis being the major issue with data centers, reducing the expenses incurred is also a major objective.

With many diverse problems to be addressed developing an efficient system that addressed all the issues was a herculean task.

The hydrogen fuel cell commercially known as the “Bloom Energy Server” has significantly solved most of the problems that data centers face in terms of energy crisis. Water vapor being the bi-product of the electrolysis process, they have high “green quotient” rating compared to any of the conventional batteries.

Hydrogen fuel cell is predicted to be the environmentally safest energy reservoir for meeting the ever growing energy demands of human world. The operation of a simple hydrogen fuel cell is completely self-sustained. It uses hydrogen and oxygen in their ionic form. A hydrogen fuel cell consists of a solar panel which generates electricity to split the hydrogen atom into H+ ions. These ionic compounds are stored in a separate chamber. Oxygen atoms are also obtained in their ionic state and stored in specially designed chambers. The chemical reaction between the ionic H+ and O2- ions generate electricity with water vapor as the bi-product.

Since water vapor is the bi-product, it causes zero pollution. Hence, it has become one of the most sought after technologies in an energy deprived world.

This technology is not just confined to the Bloom Energy Server, but several automobiles which run on fossil fuels have now switched to hydrogen fuel cells as their energy source. Toyota has pioneered the technology with the launch of green hybrid vehicles which have significantly reduced global warming caused by vehicle emissions. Hydrogen being the primary fuel for powering fuel cells, many developed nations has setup the necessary infrastructure to refill hydrogen gas cylinders, which has only emphasized that this will be The Technology to all the energy deprived nation.

Many organizations have successfully installed the bloom energy server. E-commerce giants such as eBay have successfully transformed their data centers into 100% renewable energy powered centers. Bloom has worked to help Google achieve both its economic and environmental goals, assuring that the 400kW installation on Google’s main campus delivers clean and affordable power. Over the first 18 months the project has had 98% availability and delivered 3.8 million kWh of electricity.

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Microsoft Turns to Biogas for Power Generation

As per latest reports, Microsoft is drawing up plans for a data center that will be powered by biogas. Biogas is produced from landfills and other sources. Last week, the company showcased its data plant experiment to make its data centers more reliable and environment friendly.

“Fuel cells would supply power to the data center and make it independent from the grid” said Christian Belady, general manager of Data Center Services in a blog post last week. “The company is also researching a small scale experiment to measure performance and benefits and is seeking a location to test a prototype”, Belady said. Having power generation sources on site allows the operator of a data center to use the electric grid as back up or combine both sources for maximum efficiency.

Fuel cells generate electricity from biogas via a chemical reaction that is more immaculate and efficient that sourcing power from a grid. However, Microsoft is planning to procure gas directly from its source by locating its data center in such an area. It can either be a landfill or waste water treatment plant where the decay of organic material produces methane, the primary component of biogas. Another important feature of fuel cells is that they can provide heat to a building, an excellent way to replace other back up measures such as diesel generators.

Apart from utilizing a cleaner and more renewable source of power like biogas, Microsoft also wants to ameliorate the reliability of its data centers power sources since the electric grids are not made to handle the tremendous growth in power demand.

Microsoft’s major competitor Apple is gearing up its data center Maiden, N.C to use biogas as an energy source for its 4.8 megawatt installation of fuel cells. Other players such as NTT America are also buying biogas from utilities to run its data center situated in California.

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Powering Your Data Center with New Technology

A new report released on November 30, 2011 announced that fuel cells are now available to power your data center.  A fuel cell provides power by converting chemical energy into electricity by means of a chemical reaction. Fuel cells are used in many industrial and commercial industries, but using them in Data centers is a new concept.

Why Fuel Cells?

For data centers who want to be known as environmentally friendly then using fuel cells could be the answer. Fuel cells are much more reliable than using solar or wind power. They are still inexpensive and a great source of an alternative energy supply.

Natural gas fuel cells have been developed by ClearEdge Plus and they are targeting areas where power consumption is high and expensive like California. With demand and price increases no business can afford not to start looking at alternative energy sources. Energy rates in California are in the 17 – 23 cents range per kWh. A natural gas fuel cell could have those costs reduced down to the 9 cent range, a huge savings!

Fuel Cells Have Actually Been Here For Ages!

The idea of using fuel cells in data centers is not new. The concept of using Hydrogen fuel cells has been around for over a decade now. Resistance to these hydrogen cells was mainly due to storage concerns. Data center owners were not comfortable with the thought of storing natural gas on their property. The actual process of drawing power from hydrogen was thought to be messy and using electricity directly was much cleaner and convenient.

As with any process advances in technology have made processes cleaner and easier than ever before. This new technology uses a chemical process to convert the energy into electricity. Basically the hydrogen is split into protons and electrons. The electrons then pass through a circuit which produces the energy.

Benefits of Natural Gas Fuel Cell

The biggest benefit of using natural gas fuel cells is that they are clean running. Even though the initial outlay for the fuel cells is higher than regular batteries the fuel cell has a much longer life span.

Another benefit of using these types of fuel cells is that weigh less than batteries and a generator and make for much easier storage. This could have a huge impact if your data center is located on the upper floors of a high rise building.

For a great example of where fuel cells have been successfully used visit the following link. The First Silicon Valley Company to use Hydrogen Fuel Cell.

For more on environment friendly data centers,please visit Data Center Talk.

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