[governance] The Bicycle-Powered Internet?

Riaz Tayob riaz.tayob at gmail.com
Tue Oct 2 09:17:24 EDT 2012


http://www.greens.org/s-r/59/59-06.html
*Eat, Sleep, Click: The Bicycle-Powered Internet*

by Jane Anne Morris

Save a tree, bank online. Subscribe online, reduce your carbon footprint.
Listen to music online, watch movies online, read books online. No mess, no
fuss. Google Inc. has photovoltaic (PV) solar panels on its headquarters.
With all that footprint-lightening, you may soon be down to no ecological
footprint at all, right?

Since everyone wants the Internet to have a gentle footprint and not be
"evil," we should power it with green electricity. Start with a bicycle
generator and a server. Here are some back-of-the-envelope figures.

All the stuff on the Internet, or in the "cloud," is kept aloft by
computers called servers (plus routers and so on). An average server draws
400 watts/hour, half of that for cooling (fairly typical), and 3500
kilowatt-hours (kWh) per year, [1] because it never shuts down.

*A healthy biker can produce a constant 100 watts/hour on a bicycle
generator, a generous estimate. Four generator bikes at 100 watts/hour
apiece would power a server. Alas, that single server can't accomplish much
by itself. Various techies have estimated that a single online search
activates between 1000 and 20,000 servers, often located all over the
world.

Numerous servers are housed together in places called server farms or data
centers. To power a modest-sized data center (50,000 servers) by bicycle
power would require almost a million pedalers and an area equivalent to 347
football fields. [2] Data centers can be as small as closets at the back of
a business, or as large as several football fields and use as much
electricity as small cities. They run 24/7/365, and tend to have multipl
redundant backup systems, so no one has to wait 10 seconds to learn from a
web site if it's raining outside.*

What finally matters is not this or that server or data center, but the
overall Internet electricity use. How much bicycle power would it take to
run the Internet? Later we can figure out how to landscape the facility,
and decide where to put the snack bars and port-a-potties.

The EPA's conservative and dated number for 2006 Internet electricity use
within the US alone is 60 billion kWh. Getting that much electricity from
the setup described above would require 600 million bike generators.
Assuming 6-hour pedaling shifts, that would take 2.4 billion pedalers.
Think of the stimulus to the global economy: pedaling jobs for the entire
populations of the US (305 million), Canada (33 million), Mexico (110
million), South America (382 million), India (1.5 billion), and Japan (127
million).

Five years later, that number has doubled (at least). It is widely claimed
that in 2010 the Internet used 3% of US electricity (3884 billion kWh),
which is 117 billion kWh. So, we're now talking about 1.2 billion bike
generators and 4.8 billion pedalers.

In 2007, an independent outsider who is not on the dole of the IT industry
calculated that US Internet energy use was around 350 billion kWh annually,
approximately six times the EPA's 2006 estimate, [3] and three times the
conservative 2010 estimate used above. I will use the lower numbers, but
actual Internet electricity use may be much higher.

What about worldwide Internet electricity use? Available 2010 estimates—200
billion kWh [4] — are probably conservative. Whatâat's that in bicycles?

Using the same assumptions as before, that worldwide Internet could be
powered by a mere two billion bike generators, with 8 billion people
pedaling. (Current world (over)population is 7 billion.) If you placed that
many bicycles end-to-end, they would reach far enough for three round trips
to the moon, and then a trip back up.

Who would want to design a bicycle-generator system to power the Internet?
Someone who wanted to imagine a human-scale equivalent for how much energy
the Internet already sucks up. What about other "renewable" energy sources?

Solar and wind-powered Internet

At the biggest, most successful photovoltaic projects in the world, the
rule of thumb is that 10 acres of panels produces a megawatt of capacity
(as would 10,000 bicycle generators). A square mile (640 acres) could
provide 64 MW. Each megawatt might yield 1.5 million kWh/year, so the
annual kWh from a square mile of good solar would be 96 million.

Generating an annual 117 billion kWh (2010 US Internet use) with solar
would require at least 1220 square miles of PV panels, and 78,000 MW. [5]
For the 200 billion kWh number for world Internet use, it would take 2081
square miles (that's Delaware) and 133,200 MW.

What about a wind-powered Internet? Experience in the wind turbine industry
(and again in the choicest spots), has shown that it's good to get 20 MW of
capacity per square mile. Three million kWh a year from each megawatt of
capacity is also optimistic.

Using wind turbines to get that 117 billion kWh for 2010 US Internet
electricity use would require 1950 square miles. [6] The 200 billion kWh
for 2010 world Internet use would require *3300 square miles*. Most wind
power sites are less productive than the sites from which these numbers
were derived.

*
*It's not appropriate to compare solar and wind directly to conventional
power plants. Except for maintenance and accidents, coal and nuke plants
operate 24/7, though demand drops at night. In contrast, solar is always
down at night, and wind is variable, exactly what data centers can't be.

*With solar, more than half the electricity would have to be stored for use
when little or no power is generated. The huge batteries necessary for
storing this much power look like a cross between upturned railroad freight
cars and electric substations. They require space, maintenance, and
cooling. Every time energy is converted from one form to another (like
rotating energy to electrical energy to heat energy, or electricity into
batteries and then out again) energy is lost. That slippage increases the
initial kWh necessary, but I have not factored that in.*

Also omitted in calculations here are the power lines, substations,
maintenance roads, other support facilities, and ladders and buckets of
ammonia water to clean PV panels. Not to mention the fact that most areas
don't get nearly as much sun as the prize spots already selected for large
solar arrays. I'm also not considering the resources needed to manufacture,
transport, and maintain the PV panels. Similar considerations apply to wind
power.

Solar and wind have different advantages. Fewer acres of solar than wind
are required for each MW of capacity (10 versus 32), but for each MW
capacity of wind, you get more kWh/year (3 million as compared to 1.5
million). That is because you are never, ever, going to average more than
12 hours daily of solar. However, you might average more than that for
wind, depending on location and circumstances.

Megawhat?
A solar panel rated at one kilowatt of capacity will produce one
kilowatt-hour of energy if the sun shines on it steadily for an hour. Terms
like megawatt, kilowatt, and watt express power or capacity, while
megawatt-hour, kilowatt-hour, and watt-hour measure energy. A kilowatt is a
thousand watts; a megawatt is a million watts or a thousand kilowatts.

At the scale necessary to power data centers, solar, wind, and even bicycle
power involve considerable habitat loss. Bicycle space to power the 2010 US
Internet would be about 4304 square miles (about the size of the
Everglades). For the 2010 world Internet, about the combined area of
Delaware and Connecticut. When chunks of ecosystem are shoveled into
industrialism's mill, Gaia is diminished. Acres sacrificed to solar arrays,
wind farms, power line rights of way, or thousands of bicycle generator
pads destroy habitat no less than those given over to GMO crops, cooling
ponds, interstate highways, and parking lots.

Energy-intensive, thy name is Internet

*How can the Internet use so much electricity? Suppose you have an awesome
video of your cat at a laptop using her little cat feet to scroll through
online celebrity cats in fetching poses. (Click for full screen.) It's
stored in your email account, and you have a copy on your laptop and/or
handheld. Your email is backed up by the company that offers it, and you
have backup service for your laptop, so that's more Internet storage space
on servers somewhere; then the back-up companies back up their back-ups.
You send the cat video to 50 people. Some store it in their emails; some
download it and have it backed up on their own online backup systems; some
send it out to a few other people; and some do all three. How many places
can we find the cat? It's a hall of mirrors, a grain of wheat doubling on
each square of a chessboard. All of it eats kilowatt-hours. How much
fracking is that cat porn worth to you?*
*
All online content is not born equal. It takes very little electricity to
support text, even italics. Graphics such as photos and drawings are much
more energy-intensive. Music exceeds even graphics, and video (bouncing
bunnies, or time-lapse wrinkle cream results) is the greediest of all.
*
*Online action is hosted and processed in massive data centers that use up
to 100 or even 200 MW of demand; data center operators are not often eager
to release this information. Chicago's Lakeside Technology Center (a data
center) reportedly draws 100 MW, a higher electric demand than any other
Commonwealth Edison customer except O'Hare airport. A quick check reveals
what a "renewable" electricity supply would look like for a facility like
this. With bike generators: over a million generators, over four million
pedalers, and almost half a million acres, which is 757 square miles
(almost three times the size of Chicago). Probably not available anywhere
near the Loop. Using solar panels: 2917 acres (2210 football fields), not
counting battery space, which is also probably not in the Chicago zoning
plan. Using wind in the "windy city": 9347 acres (or 7081 football fields),
again not counting battery space.*

*As Alex Roslin of the Montreal Gazette put it, if the Internet were a
country, it would be the fifth biggest power consumer, ahead of India &
Germany.* [7]

Who is paying for this?

Tax breaks and other subsidies are common for data centers. Even
modest-sized ones often reap government subsidies for drawing huge amounts
of electricity and providing fewer jobs per buck, or per kWh, than almost
any other kind of facility.

For instance, in 2007 a Google Inc. data center got tax breaks on utility
bills, plus a property tax exemption. *Iowa'*s own web site describes the
tax exemption as including "cooling systems, cooling towers, and other
temperature control infrastructure.... also exempt from property tax are
all power infrastructure for transformation, distribution, or management of
electricity used for the maintenance and operation of the web search
portal, including but not limited to exterior dedicated business owned
substations, back-up power generation systems, battery systems, and related
infrastructure; and racking systems, cabling, and trays, which are
necessary for the maintenance and operation of the web search portal."

Iowa even calculated its expected tax losses: $3.6 million in 2009, $12.7
million in 2010, $22 million in 2011, and $32.7 million in 2012. The
corporation got a similar deal in North Carolina, where estimates of tax
losses to the state were approximately $97 million over 30 years.

*Lack of enforcement of environmental and occupational safety laws across
the board is an often-overlooked form of subsidy available to large
corporations, including data centers. This includes the cradle-to-grave
production, processing, transport, and use of nuclear and fossil fuels, as
well as the toxic waste and byproducts of same. Companies burn through
energy and resources far more cheaply than would be possible if laws "on
the books" were enforced.*

Finally, there are those bargain-basement electricity bills. Data
center *electricity
rates* are as low as 3–4¢/kWh, while residential customers pay much higher
rates: easily 15, 20, 25¢/kWh, and even steeper when charges for
distribution and other fees are included. [8]

*The public is massively subsidizing data centers, the Internet, and the
profits of IT corporations. Yet, many corporations with huge data centers
are not eager to advertise their locations, and use third parties to
negotiate their deals. Some go to great lengths to hide their electricity
use. In 2007, for example, at Google Inc.'s urging, Oklahoma rewrote its
open records law to allow data center owners to conceal from the public the
amount of electricity used.*

If inefficiency is not the problem, efficiency is not the solution

When I raise the issue of the massive electricity use of all things
Internet, everyone tells me how efficient IT is becoming.

*The idea that efficiency reduces consumption is at best debatable, and at
worst a public relations scam. As Don Fitz wrote in "Why Energy Efficiency
Isn't Reducing Consumption" (Synthesis/Regeneration 50:30, 2009), over a
century and a half of research on the relationship between efficiency and
consumption of a resource has marshaled considerable evidence that the
opposite is true. Since Stanley Jevons documented that coal consumption
increased 10-fold after smelters tripled their efficiency (The Coal
Question, 1865), the phenomenon has been called the Jevons Paradox.
Historically, in capitalist systems, increased efficiency has led to more
consumption, not less.*

Being efficient is good, but it does not mean sustainable, it does not mean
green, and it does not portend reduced consumption. Data center efficiency
is improving, and Google Inc.'s are reputed to be among the best. *But when
Gaia is diminished by the ripping out of coal and the dumping of sludge,
her suffering is in no way reduced if the resulting electricity is used
"efficiently." Earth's problem is not the inefficiency of resource use, but
the quantity. Ask Gaia*.

Food, internet, spam

Why do we figure out the ecological implications of eating a hamburger but
not clicking a search? When it comes to food, the green or even greenish
band of the political spectrum is all over it. Local food. Organic food.
Slow food. Urban agriculture. Permaculture. Rooftop gardens. Alice Waters,
Will Allen, Michael Pollan. "Eat food. Not too much. Mostly plants." Fast
food nation. Eat low on the food chain.

But *when it comes to the Internet, people spout shallow unexamined cliches
as they tap at sleek, shiny gadgets. The PV panels at Google Inc.'s
headquarters and other cheap stunts deflect attention from the enormity of
Internet energy use*. Engineering Professor Mohamed Cheriet, at Montreal's
Ecole de Technologie Superieure, who works on "green" IT innovation,
gushes, "We've found the key to the problem: Follow the wind, follow the
sun." [9] The Internet is the fast food triple bacon cheeseburger of
communications, yet people are convinced it's green.

*Are the brains who figured out it takes 150 or 630 or 1300 gallons of
water to produce a hamburger just out to lunch when it comes to the
Internet? Why is the Internet—a global system if there ever was one—immune
from the same analysis? Spending two hours on the porch showing your
neighbor your family photo album is not especially energy-intensive. Doing
so online, and sending it around to everyone on your email list, carries
vastly higher ecological costs. *

File Size Matters
A text-only file of the Bible is approximately 1.5 MB. With pictures,
depending on how elaborate, it is closer to 100 MB. A 2-hour video about
the greatest story ever told would use up more like 1-1.5 GB. Comparing
music and video, a 4-minute video would use about 24 MB, while 4 minutes of
music would use only about 4 MB.

What's the actual content that billions of publicly subsidized kWh go to
support? Nicholas Carr (The Big Switch, 2008) estimated in 1996 that 94% of
all emails are spam, and that there may be 85 billion spams a day. This
year, John Markoff in the New York Times claimed that about *90% of all
email is still spam*, and that one single spam campaign generated three
emails for each person on the planet, some 21 billion messages. Ken Auletta
(Googled, 2009) suggested that *as many as a quarter of all searches are
for porn*. According to Alex Roslin at the Montreal Gazette, 250 billion
emails are sent daily. [10] The study Markoff referenced suggested that
over 12 million messages were needed to sell $100 of Viagra. [11] Dennis
Walsh from green at work, among others, states that over 200 million Internet
searches happen daily in the US alone; 100 million photos are uploaded
daily. Google Inc. has reported that it carries out about a billion
searches per day, according to James Glanz in the New York Times. [12]

One person estimated that *fantasy football* aficionados spent 2.4 billion
hours online per season. [13] Online games, role-playing, social
networking, gambling, and an almost unbelievable amount of advertising are
up there in the "cloud" at tremendous energy cost. Much of it is not the
relatively energy-cheap text, but the photos, music, video, bouncing
cartoons, and interactive click-fests that are hundreds or thousands of
times more energy-intensive. Subsidizing the entire current Internet system
because an activist can upload photos of strip mining and clearcutting is
like subsidizing an industrial-sized Wal-Mart because six feet of shelf
space holds organic spinach.

The Internet is not, and will not be, powered by so-called renewable
energy, magical energy that is somehow without consequences. Sleek, glowing
screens may hide the truth from people who don't want to hear about it, but
the consequences remain. The real costs of Internet electricity use are
being cast over state boundaries and national borders, across class,
ethnic, and species lines, and onto future generations.

In hindsight, most wish that we had used a little more foresight about the
automobile. Today is a good time to look up from our screens and take
advantage of the fact that we are still in the Model T era of the Internet.

*If we keep pretending that the Internet is innocuous, neutral, democratic,
clean, and green, we can look forward to more iPipelines, iFracking,
iMountaintop Removal, iCoal Plants, iNukes, iStripmining, iSpecies
Extinction, iHabitat Loss, iClimate Change, iTar Sands, iSludge, iOil
spills, iFloods, and continued iResource Wars.*

Or, we can begin to give it the attention we give a burger.

-------------------------
*Corporate anthropologist Jane Anne Morris (democracythemepark.org), whose
most recent book is Gaveling Down the Rabble: How "Free Trade" is Stealing
Our Democracy (Apex/Rowman & Littlefield, 2008), first wrote about Internet
energy use in "The Energy Nightmare of Web Server Farms: Feet in the Cloud,
Head in the Sand," Synthesis/Regeneration: A Magazine of Green Social
Thought, Winter 2008 (here).*


*Notes*

1. 400 watts/server, for 8760 hours, would be 3,504,000 watt hours, or 3500
kWh a year necessary for one server.

2. Assume 4 pedalers (6-hour shifts) for each bike generator. 57,600 sq. ft
in a football field, or 1.32 acres, including end zones. 43,560 feet per
acre. 20,000,000 divided by 57,600 is 200,000 divided by 576 which is
347.22 or 347 football fields. In acres it is 459.136. (200,000 generators,
800,000 pedalers, twenty million square feet).

3. David Sarokin, untitled blog answer, Sat. Aug. 18, 2007, estimating
"electricity consumption for the Internet," with assumptions and
discussion. This same DS estimated world usage at that time as 868 billion
kWh/year. Sarokin data includes pc's, modems, etc.

4. Rich Miller, Google's Energy Story: High Efficiency, Huge Scale,
September 8, 2011, Data Center Knowledge website datacenterknowledge.com,
quoting a report by Jon Koomey, whose estimate for 2010 was 198.8 billion
kWh, worldwide, for Internet use. I rounded that to 200 billion kWh.

5. I looked up the major solar PV projects in the world and took a rough
average. 117 billion kWh divided by 96 million per square mile yields the
number of square miles =1218.75 = 1219 square miles; 117 billion divided by
1.5 million kWh/yr yields number of megawatts = 78,000 MW.

6. I looked up the major wind projects in the world and took a rough
average. 20 MW per sq. mile, 3 million kWh per MW, so 60 million kWh per sq
mile, so would need 117 divided by 60 = 1950 square miles.

7. Alex Roslin (Postmedia News), Could the Net be killing the planet one
web search at a time? in the Montreal Gazette, June 3, 2011.

8. One source for this is Ron Starner, Is Energy Still Oklahoma's Trump
Card? Site Selection Online, July 2007.

9. Alex Roslin, Dirty Data: The Internet's Giant Carbon Footprint, June 4,
2011, Montreal Gazette.

10. Alex Roslin (Postmedia News), Could the Net... Montreal Gazette June 3,
2011.

11. John Markoff, Study Sees Way to Win Spam Fight, NYT , May 20, 2011.

12. James Glanz, Google Details, and Defends, Its Use of Electricity, NYT,
Sept. 9, 2011.

13. http://www.joulex.net/Green_IT_Blog/bid/58292/
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