Powering the Internet with renewable energy

Today we're announcing the largest, and most diverse, purchase of renewable energy ever made by a non-utility company. Google has already committed to purchase more renewable energy than any other company. Now, through a series of new wind and solar projects around the world, we’re one step closer to our commitment to triple our purchases of renewable energy by 2025 and our goal of powering 100% of our operations with clean energy.

842 MW of renewable energy around the world
Today’s agreements will add an additional 842 megawatts of renewable energy capacity to power our data centers. Across three countries, we’re nearly doubling the amount of renewable energy we’ve purchased to date. We’re now up to 2 gigawatts—the equivalent to taking nearly 1 million cars off the road.

These additional 842 megawatts represent a range of locations and technologies, from a wind farm in Sweden to a solar plant in Chile.

These long-term contracts range from 10-20 years and provide projects with the financial certainty and scale necessary to build these wind and solar facilities—thus bringing new renewable energy onto the grid in these regions. For our part, these contracts not only help minimize the environmental impact of our services—they also make good business sense by ensuring good prices.

Our commitment to a sustainable energy future
Since we opened our very first owned data center in 2006, we’ve been working to promote renewable and sustainable energy use in several ways:

• First, we’re building the world’s most efficient computer infrastructure by designing our data centers to use as little energy as possible.
• Second, we're driving the renewables industry forward by fully committing to renewable sources. In 2010, we entered our first large-scale renewable power purchase agreement with a wind farm in Iowa, and we subsequently completed a number of similar large-scale energy purchases over the past five years. Today’s announcement is another milestone in this area.
• Third, we've worked with our utility partners to help promote transformation in the utility sector. In 2013 we created a new program that enables customers like Google to buy large amounts of renewable energy directly from their utilities. Today's announcement includes the first solar project enrolled under that program. And this past summer we announced that our newest data center will be on located on the site of a retiring coal plant and will be 100% renewable powered from day one.
• Fourth, beyond our efforts to power our own operations with renewables, we’ve made separate agreements to fund $2.5 billion into 22 large-scale renewable energy projects over the last five years, from Germany to Kansas to Kenya. These investments have been in some of the largest and most transformative renewable energy projects in the world with a goal to help drive renewable energy development not only as a customer but as an investor, and bring down costs for everyone.

And we’re also working on new technologies and ideas—ranging from Project Sunroof to Makani Power to air quality monitoring—that we hope can make a cleaner energy future an option for many more people.

With world leaders coming together at the COP21 UN conference on climate change in Paris this week, there's no better time to focus on renewable energy. We hope that our efforts play a small part in boosting all of us in the race to solve climate change.

Posted by Urs Hölzle, SVP Technical Infrastructure https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY8j5o2glFxb9NYNYF-_ukDwDj5-UlwUG944r27KWL30G5iAW5tpFp1_fZtfk-0f3a8I7F4CZmLydbrZW1itGCfEwLtcICtFsidyhuOLjfskcuUKf_c6fHzmYAQKord609hLFZ1MxCDNI/s1600/gigawattscrop.png Urs Hölzle SVP Technical Infrastructure

A power plant for the Internet: our newest data center in Alabama

Every time you check your Gmail, search on Google for a nearby restaurant, or watch a YouTube video, a server whirs to life in one of our data centers. Data centers are the engines of the Internet, bringing the power of the web to millions of people around the world. And as millions more people come online, our data centers are growing, too.

We’ve recently expanded our data centers in Iowa, Georgia, Singapore and Belgium. And today we’re announcing a new data center in Alabama—our 14th site globally.

This time, we’re doing something we’ve never done before: we’ll be building on the grounds of the Widows Creek coal power plant in Jackson County, which has been scheduled for shutdown. Data centers need a lot of infrastructure to run 24/7, and there’s a lot of potential in redeveloping large industrial sites like former coal power plants. Decades of investment shouldn’t go to waste just because a site has closed; we can repurpose existing electric and other infrastructure to make sure our data centers are reliably serving our users around the world.

At Widows Creek, we can use the plants’ many electric transmission lines to bring in lots of renewable energy to power our new data center. Thanks to an arrangement with Tennessee Valley Authority, our electric utility, we’ll be able to scout new renewable energy projects and work with TVA to bring the power onto their electrical grid. Ultimately, this contributes to our goal of being powered by 100% renewable energy.

In 2010, we were one of the first companies outside of the utility industry to buy large amounts of renewable energy. Since then, we’ve become the largest corporate renewable energy purchaser in the world (in fact we’ve bought the equivalent of over 1.5 percent of the installed wind power capacity in the U.S.). We're glad to see this trend is catching on among other companies.

Of course, the cleanest energy is the energy you don’t use. Our Alabama data center will incorporate our state-of-the-art energy efficiency technologies. We’ve built our own super-efficient servers, invented more efficient ways to cool our data centers, and even used advanced machine learning to squeeze more out of every watt of power we consume. Compared to five years ago, we now get 3.5 times the computing power out of the same amount of energy.

Since the 1960s, Widows Creek has generated power for the region—now the site will be used to power Internet services and bring information to people around the world. We expect to begin construction early next year and look forward to bringing a Google data center to Alabama.

Posted by Patrick Gammons, Senior Manager, Data Center Energy and Location Strategy

Little Box Challenge opens for submissions

These days, if you’re an engineer, inventor or just a tinkerer with a garage, you don’t have to look far for a juicy opportunity: there are cash prize challenges dedicated to landing on the moon, building a self-driving car, cleaning the oceans, or inventing an extra-clever robot. Today, together with the IEEE, we’re adding one more: shrinking a big box into a little box.

Seriously.

Of course, there’s more to it than that. Especially when the big box is a power inverter, a picnic cooler-sized device used to convert the energy that comes from solar, electric vehicles & wind (DC power) into something you can use in your home (AC power). We want to shrink it down to the size of a small laptop, roughly 1/10th of its current size. Put a little more technically, we’re looking for someone to build a kW-scale inverter with a power density greater than 50W per cubic inch. Do it best and we’ll give you a million bucks.

There will be obstacles to overcome (like the conventional wisdom of engineering). But whoever gets it done will help change the future of electricity. A smaller inverter could help create low-cost microgrids in remote parts of the world. Or allow you to keep the lights on during a blackout via your electric car’s battery. Or enable advances we haven’t even thought of yet.

Either way, we think it’s time to shine a light on the humble inverter, and the potential that lies in making it much, much smaller. Enter at littleboxchallenge.com—we want to know how small you can go.

Posted by Eric Raymond, Google Green Team

Better data centers through machine learning

It’s no secret that we’re obsessed with saving energy. For over a decade we’ve been designing and building data centers that use half the energy of a typical data center, and we’re always looking for ways to reduce our energy use even further. In our pursuit of extreme efficiency, we’ve hit upon a new tool: machine learning. Today we’re releasing a white paper (PDF) on how we’re using neural networks to optimize data center operations and drive our energy use to new lows.

It all started as a 20 percent project, a Google tradition of carving out time for work that falls outside of one’s official job description. Jim Gao, an engineer on our data center team, is well-acquainted with the operational data we gather daily in the course of running our data centers. We calculate PUE, a measure of energy efficiency, every 30 seconds, and we’re constantly tracking things like total IT load (the amount of energy our servers and networking equipment are using at any time), outside air temperature (which affects how our cooling towers work) and the levels at which we set our mechanical and cooling equipment. Being a smart guy—our affectionate nickname for him is “Boy Genius”—Jim realized that we could be doing more with this data. He studied up on machine learning and started building models to predict—and improve—data center performance.

The mechanical plant at our facility in The Dalles, Ore. The data center team is constantly tracking the performance of the heat exchangers and other mechanical equipment pictured here.

What Jim designed works a lot like other examples of machine learning, like speech recognition: a computer analyzes large amounts of data to recognize patterns and “learn” from them. In a dynamic environment like a data center, it can be difficult for humans to see how all of the variables—IT load, outside air temperature, etc.—interact with each other. One thing computers are good at is seeing the underlying story in the data, so Jim took the information we gather in the course of our daily operations and ran it through a model to help make sense of complex interactions that his team—being mere mortals—may not otherwise have noticed.

A simplified version of what the models do: take a bunch of data, find the hidden interactions, then provide recommendations that optimize for energy efficiency.

After some trial and error, Jim’s models are now 99.6 percent accurate in predicting PUE. This means he can use the models to come up with new ways to squeeze more efficiency out of our operations. For example, a couple months ago we had to take some servers offline for a few days—which would normally make that data center less energy efficient. But we were able to use Jim’s models to change our cooling setup temporarily—reducing the impact of the change on our PUE for that time period. Small tweaks like this, on an ongoing basis, add up to significant savings in both energy and money.

The models can predict PUE with 99.6 percent accuracy.

By pushing the boundaries of data center operations, Jim and his team have opened up a new world of opportunities to improve data center performance and reduce energy consumption. He lays out his approach in the white paper, so other data center operators that dabble in machine learning (or who have a resident genius around who wants to figure it out) can give it a try as well.

Posted by Joe Kava, VP, Data Centers

How green is the Internet?

More than ever, people are using the Internet to shop, read, listen to music and learn. And businesses rely on Internet-based tools to operate and deliver their services efficiently. The Internet has created all kinds of new opportunities for society and the economy—but what does it mean for the environment?

We’ve been working to answer that question and enlisted the help of Lawrence Berkeley National Laboratory (Berkeley Lab) to gather more data. Their study (PDF), released today, shows that migrating all U.S. office workers to the cloud could save up to 87 percent of IT energy use—about 23 billion kilowatt-hours of electricity annually, or enough to power the city of Los Angeles for a year. The savings are associated with shifting people in the workforce to Internet-based applications like email, word processing and customer relationship software.

These results indicate that the Internet offers huge potential for energy savings. We’re especially excited that Berkeley Lab has made its model publicly available so other researchers and experts can plug in their own assumptions and help refine and improve the results.

Of course, understanding the impact of shifting office applications to the cloud is only part of the story, which is why last week we hosted a summit called “How Green is the Internet?” to explore these questions in greater detail. At the summit, experts presented data on how the growth of Internet infrastructure, including devices like phones and tablets, can impact the environment. We also saw great excitement about the potential for entirely new Internet-enabled tools in areas like transportation, e-commerce and digital content to deliver huge energy and carbon savings. We’ve posted the videos from those sessions and invite you to take a look.



One of our goals in hosting the summit and supporting the Berkeley Lab study was to identify and encourage new research on this topic. We’ll continue to work to answer some of these questions, and we hope others will too.

Posted by Michael Terrell, Senior Policy Counsel, Energy & Sustainability

Investing in a South African solar project

As we search for investments that can help speed up the adoption of renewable energy, we’ve been looking beyond the U.S. and Europe to parts of the world where our investments can have an even greater impact. We’ve just closed our first investment in Africa: $12 million USD (103 million Rand) investment in the Jasper Power Project, a 96 megawatt solar photovoltaic plant in the Northern Cape province of South Africa. Upon completion, Jasper will be one of the largest solar installations on the continent, capable of generating enough electricity to power 30,000 South African homes. The project, developed and funded by SolarReserve, Intikon Energy and the Kensani Group, is also backed by Rand Merchant Bank, the Public Investment Corporation, Development Bank of South Africa and the PEACE Humansrus Trust.

View Jasper Power Project in a larger map

The Jasper Power Project is located in the Northern Cape Province of South Africa, near Postmasburg

When we consider investing in a renewable energy project, we focus on two key factors. First, we only pursue investments that we believe make financial sense. South Africa’s strong resources and supportive policies for renewable energy make it an attractive place to invest—which is why it had the highest growth in clean energy investment in the world last year. Second, we look for projects that have transformative potential—that is, projects that will bolster the growth of the renewable energy industry and move the world closer to a clean energy future. The Jasper Power Project is one of those transformative opportunities. To explain why, perhaps some background would be helpful.

Back in 2008, South Africa experienced a severe energy shortage, which resulted in blackouts throughout the country and slowed down economic growth. Since then the South African government has been actively supporting the growth of new sources of electricity to power the nation. While today South Africa is primarily dependent on fossil fuels, there’s lots of potential for renewable energy—it’s a country blessed with abundant wind and solar resources—and the government has set an ambitious goal of generating 18 gigawatts (GW) of renewable energy by 2030 (as a comparison, the entire South African grid is currently 44 GW).

To meet this goal, the South African government has established the Renewable Energy Independent Power Producer Procurement Program (REIPPPP). Through the program, renewable energy projects compete on the basis of cost and contribution to the local economy to be awarded a contract with Eskom, South Africa’s state-owned energy utility. Jasper and the other projects being developed through the REIPPPP have the potential to transform the South African energy grid. And given South Africa’s position as an economic powerhouse in Africa, a greener grid in South Africa can set an example for the whole continent.

Once constructed, the project will use solar panels like these.

Just as compelling are the economic and social benefits that the project will bring to the local community. Jasper will create approximately 300 construction and 50 permanent jobs in a region experiencing high rates of unemployment, as well as providing rural development and education programs and setting aside a portion of total project revenues—amounting to approximately $26 million over the life of the project—for enterprise and socio-economic development. We appreciate how forward-thinking the South African government has been in designing the REIPPPP to encourage these kinds of local economic benefits.

Google has committed more than $1 billion to renewable energy investments and we continue to search for new opportunities. Our search has brought us from the U.S. to Europe and now to Africa. We’re excited to see where else it might lead.

Posted by Rick Needham, Director, Energy & Sustainability