The Importance of Location for Green Data Centers
Location is becoming increasingly important to the sustainability of ICT facilities. We've been tracking facilities in North American and Europe which try to leverage geographic features for greener operations. Our latest example includes Apple benefiting from its Nevada (US) site's underground water and low risk of natural disasters and an award-winning Norwegian data center benefiting from on-site hydro and cooling water.
US company Verne Global was the first to focus on Iceland. It cites what it calls the "Icelandic Advantage" of its data center:
"100% Green Energy: All of Iceland's electricity comes from affordable, sustainable geothermal and hydroelectric energy... These resources are 100% renewable, with no green energy price premium...you're guaranteed a supply of continuous, high-quality electricity at a fixed rate...for up to 20 years..."
"Free Cooling The mean annual temperature in Iceland is -0.5°C (30°F) in January and 13°C (55°F) in July...As a result, we can handle power densities of up to 15 to 20 kW per rack using cooling from Iceland's ambient temperature alone."
"Less natural disaster risk than the U.S., U.K. or India"
The company also notes that its data center is in a repurposed military facility, a European trend..
Microsoft considered the country in 2007 as a data center location, but ZDNet reports, "The main reason [rejected Iceland] was that Microsoft decided to locate its data centers no more than 500 miles from large population centers because of latency issues." The attempt to lure Microsoft did yield Price Waterhouse Coopers' Benchmarking Study on Iceland as a Location For Data Centre Activity. More from PWC about Iceland.
Another Icelandic company using the country's assets for Green ICT is start-up Greenqloud.
Icelandic data center ThorDC reports, "Opera Software ASA, a Norwegian software company, primarily known for its Opera family of web browsers [signed] an agreement to move a significant part of its electronic data traffic to the Thor Data Center...the Thor data center will be the most eco-friendly data center in the world. This is both due to the type of technology it utilizes and because it uses only renewable energy from local sources."
Elsewhere in Europe
From The Wall Street Journal in 2011: "Google Inc.'s opening of a €200 million ($273 million) server hall in Hamina, Finland, over the weekend is boosting Scandinavian hopes that other big Internet companies will choose to build data centers in the region, attracted by its cold climate and low electricity prices."
Facebook cites cooling as a reason for locating its data center for Europe, Middle East and Africa in Sweden near the Arctic Circle.
Green Mountain Data Centre is built into the side of a Norwegian mountain alongside a high-threshold fjord. The geologic feature retains a deep pool of year-round cold water - 8 °C - which the facility uses for cooling. The data center also uses renewable energy. The data center won the 2013 DatacenterDynamics "Green" Data Center Award.
The Data Centre Risk Index 2012 report "…ranks countries according to the risks likely to affect the successful operation of a data centre, risk factors such as energy costs, connectivity…the likelihood of natural disasters or political instability…energy security and education…" "The UK has moved…to second position this year. Its high international internet bandwidth capacity and ease of doing business put it above all other European locations surveyed. Germany is the second most popular location in Europe in which to locate a data centre followed by new emerging markets the Nordics…The U.S. retains its first place ranking and is considered the lowest risk location for building and operating a data centre in the world. It holds top position for international bandwidth and performs well in the other tier 1 risk categories as well as having the highest percentage of its population completing tertiary education. Canada remains in the top five low risk locations. Hong Kong has maintained its position as the location with the least risk in Asia for setting up data centres, and ranks seventh."
Ireland, too. UK's The Guardian reported in 2012, "Google and other multinationals say that the Irish weather is now one of the main attractions for global computer and online corporations setting up data centres in the Republic. The Silicon Valley firm has just established a $75m (£46.2m) data processing centre alongside its European headquarters in Dublin…Amazon also operates a cloud computing centre in the Irish capital…A year before Google's investment, Microsoft put an additional $130m into its data processing centre, having already invested $500m…UK-owned Telecity invested €100m (£81.3m) in August 2011 in a data processing centre at three locations in Dublin." The Guardian quotes Forrester Research - "Make sure you consider Dublin, it is becoming an ever-more popular alternative to London for the more abundant power, less expensive real estate, and climate suited for free cooling." - and a Telecity manager - "The cooling element of these IT facilities is one of the reasons why Ireland is a popular choice for data centres."
The United States' Columbia River Valley became a popular location for mega data centers due to its inexpensive and low-carbon hydroelectricity, its climate for 'free air' cooling, and its fiber optic infrastructure. Google, Microsoft, Yahoo, Amazon, Ask, Intuit, and even the National Security Agency (NSA) have facilities there. One criticism of this location is that while massive hydroelectric projects like these do yield energy with a low carbon footprint, other environmental impacts make the energy arguably not so 'green'. Another is that these companies are benefiting from large energy consumption subsidized by taxpayers at prices well below the US average.
The NSA's massive new Utah data center, is the agency's second in that state. Utah's low electricity costs as cited as a reason for locating there. The Institute for Energy Research noted that this low cost comes at an environmental price, "Utah benefits from some of the most affordable electricity prices in the nation. Coal provides more than 80 percent of the state’s electricity, which contributes to the state’s low prices because coal is the most affordable energy resource."
Canada weighed in on the advantages of cool locations with a UCSD/McGill "conceptual design" that combines evaporative free cooling with "seasonal ice storage" to obtain a 1.06 PUE. Proponents claim "potential cost savings of 74% and energy savings of 47% through facility changes alone!" Bill St. Arnaud cautions, "…the high costs of telecom in Canada, because of foreign ownership restrictions, undermines the business case for relocating US data centers to this country. Telecom costs in Canada are 8 to 10 times higher than they are in the US. Low cost, ultra high bandwidth connectivity is essential for attracting data centers and can be as important, if not more important than the cost of energy."
Other US regions are touting their advantages. The Wall Street Journal reports, "In Wyoming, the chilly winters and mild summers mean ambient air can be used to cool servers up to nine months of the year, said Jeff McSchooler, vice president of EchoStar Broadcasting. After visiting more than 50 potential sites nationwide, the satellite TV company decided last summer to build a 77,000-square-foot data center in Cheyenne, where even at the height of summer the temperature rarely creeps above 82 degrees." There were other inducements, "promising cheap energy for data centers' enormous power needs [and] the Wyoming legislature recently exempted most data-center software and equipment from sales taxes and appropriated $15 million for infrastructure improvements to potential data-center sites." The article notes, "Other states offer similar advantages. FedEx, for instance, calculates that the data center it opened last month in Colorado Springs, Colo., will be able to keep the cooling systems offline more than 5,000 hours a year."
Microsoft selected Wyoming for its Data Plant project. "Wyoming's natural energy resources include coal, oil, and natural gas. Given its increasing need for renewable energy sources, Wyoming has been investing in advanced energy technologies that include both renewable and clean carbon conversion processes. The state and its local organizations have been very proactive in partnering with companies like Microsoft and FuelCell Energy to research and develop methods that will help provide sustainable resources for their energy portfolio. In addition, Wyoming's industries will also be able to benefit from the clean CO2 that is produced from this Data Plant. Wyoming has a large demand for clean CO2 and today a CO2 pipeline intersects the state with expansion projects currently in planning."
Appleinsider.com offers information and pictures about Apple's new facility outside Reno, Nevada. "Despite appearing to be bone dry, the site is actually supplied with underground sources that flow in from the north, but are held from running into the [Truckee] river by impermeable layers of rock. This provides plenty of water that meets the data center's high standards, ranging from low particulate counts to a balanced pH." Another location advantage is that the site is "rated by the Department of Homeland Security as within America's largest 'Safety Zone,' given that it is 'minimally seismically active,' experiences little threat from tsunamis, hurricanes, tornadoes, floods, or ice storms, and is located far away from any nuclear power plants." No word on the long-term impact on area aquifers.