Interview: Google’s Green Energy Czar

  • Bill Weihl is currently working on clean energy at Google. Before joining Google in early 2006, he was CTO at Akamai Technologies. (Photo courtesy of Google)

Chances are that you’ve visited the
website google.com. Google is
not only a leader in online tech, but
it’s also investing in high-tech
alternative energy, especially different
kinds of solar power. Lester Graham
talked with Google’s Green Energy
Czar – yes, that’s his real title – Bill
Weihl. His job is not only
to make Google more energy efficient,
but to investigate and invest in new,
cleaner energy use and generation:

Transcript

Chances are that you’ve visited the
website google.com. Google is
not only a leader in online tech, but
it’s also investing in high-tech
alternative energy, especially different
kinds of solar power. Lester Graham
talked with Google’s Green Energy
Czar – yes, that’s his real title – Bill
Weihl. His job is not only
to make Google more energy efficient,
but to investigate and invest in new,
cleaner energy use and generation:

Lester Graham: Last year, a report indicated performing two Google searches from a desktop computer could generate about the same amount of carbon dioxide as boiling a kettle for a cup of tea. How true is that?

Bill Weihl: We think, as, in fact, does the scientist who was behind most of the data there, that that report was actually off – that you, in fact, could do several hundred Google searches, if not more, for the emissions that are involved in boiling enough water to make a cup of tea.

Graham: What is Google doing to reduce energy consumption, or, at least, reduce greenhouse gas emissions?

Weihl: We have cut our energy consumption in our data centers – data centers are the, you know, big facilities that contain lots and lots of servers. We have cut the energy usage in those facilities by over 50%.

Graham: Is there anything we can do so that when we do use Google we’re being as energy efficient as possible?

Weihl: If you’re buying a new computer, look for one that’s energy efficient. And in the US that means look for one, at a minimum, that’s Energy Star compliant. Laptops also tend to be more energy efficient than desktops, in part because just to make the battery last long enough to be useful, they have to work really hard in designing them to make them energy efficient. The second thing you can do is when you’re not using your system, when it’s sitting there idle, you can set it so that it will go to sleep automatically, or manually, if for some reason it doesn’t go to sleep automatically, you can very easily tell it to go to sleep. That’s much more convenient, obviously, that shutting it down, having to reboot, and restart everything. And it uses about the same energy in stand-by mode as it does when it’s off – which is, in the order of 1 to 5 watts, far less than it uses when it’s just sitting there idle with the screen on and doing nothing.

Graham: Let’s look beyond the world of computers. Google has invested in research for energy efficiency in cars and electric generation. You have a program that’s called ‘R.E. is less than C’ or ‘renewable energy for less than the cost of coal.’ That’s ambitious. Is it realistic?

Weihl: First of all, it’s hugely ambitious. Secondly, I believe it is realistic. And third, I think it’s absolutely necessary. Today, coal is, by far, the cheapest form of energy, or electrical energy, that we consume, except perhaps for hydroelectric power, which is comparable in cost. But at least in this country, and most of the developed world, we’re not going to be building large amounts of new hydroelectric generating capacity. We’ve already dammed most of the rivers that are worth damming. We are, however, still building new coal plants. And coal is not only very cheap, but also it is, by far, the dirtiest, in terms of greenhouse gas emissions, of any of the sources of energy that we use. So I think it is necessary, in terms of dealing with the climate crisis that we are facing, to find a way to, over time, replace coal with cleaner sources of energy. And the only way, as a society, I think that we’re going to do that is if it makes economic sense. So that’s why we really started to focus on this initiative we call ‘R.E. less than C’ – to really try to drive innovation as rapidly as possible on the technology for generating renewable power to try to drive its cost down very quickly.

Graham: Bill Weihl is the Green Energy Czar for Google. Thanks very much for your time, I appreciate it.

Weihl: My pleasure. Thank you.

Related Links

Old LCD Screens Used for Medical Treatment

  • One research team recovered polyvinyl alcohol from the computer screens, which can be used in medicine (Photo courtesy of the National Cancer Institute)

Some researchers want to recycle
a chemical in computer screens to
use it for a medical treatment.
Shawn Allee reports:

Transcript

Some researchers want to recycle
a chemical in computer screens to
use it for a medical treatment.
Shawn Allee reports:

Most LCD computer screens contain toxic mercury. The European Union will soon mandate those screens be recycled rather than thrown away.

There are other metals and chemicals in the LCD screens that are not dangerous.

Dr. Avtar Matharu is with Britain’s University of York.

His research team recovered polyvinyl alcohol from the computer screens.

It’s used in spongy pads that deliver medicine.

“We can take out Polyvinyl alcohol from the front and back of an LCD screen. We can take what effectively would be a waste resource and potentially use it in a medical application.”

Matharu says getting polyvinyl alcohol out of LCD screens is expensive compared to making it from crude oil, but he says it could be another reason to recycle rather than throw them into a landfill.

For The Environment Report, I’m Shawn Allee.

Related Links

Greening Your Computer Usage

  • Follow the 'turn it off' advice and save, on average, $75 a year. (Source: Julo at Wikimedia Commons)

The average personal computer is a real energy guzzler. Only about half of the power it
uses makes videogames run, or music play, or run office software. The other half goes
up in wasted heat. Shawn Allee found out there are energy-saving PCs, but maybe using
the computer correctly can save the most power and money:

Transcript

The average personal computer is a real energy guzzler. Only about half of the power it
uses makes videogames run, or music play, or run office software. The other half goes
up in wasted heat. Shawn Allee found out there are energy-saving PCs, but maybe using
the computer correctly can save the most power and money:

I want a peek at some energy-saving PCs, so I head to a Best Buy electronics store.


“We’re heading to the computers.”

“Yes.”

I’m with a store manager. He wants me to use his first name, Tim.

Shawn: “When people come to the store, what’s usually the thing they’re asking
about or looking for in their PC?”

Tim: “First thing they look for is memory and hard drive space, that’s pretty much
it, and price.”

Shawn: “So it’s like, what can this thing do, and how much is this gonna cost me?”

Tim: “Exactly.”

Shawn: “How often is it the case someone comes in and says, Tim, which one saves
the most energy?”

Tim: “I have never heard that question asked.”

Shawn: “How long you been doing this?”

Tim: “I’ve been with Best Buy for five years.”

And you know, when I ask shoppers about energy consumption and computers, I just get
blank stares.

Well, Tim’s got several computers that have thumb-sized Energy Star labels.

Energy Star rated computers cut energy use by a third, and they usually cost the same as
comparable models.

This can save an average user maybe $25 a year in energy costs.

There are people who say that’s not enough.

You can actually save three times that by using PCs right.

One guy making this case is Pat Tiernan. He directs the Climate Savers Computing
Initiative, a computer industry group.

Tiernan says no matter how you get a PC – new or hand-me down …

“Make sure power management settings are aggressively set.”

Those are in the computer’s control panel settings.

Tiernan wants people to give power-settings the once-over, just to make certain the
computer can detect when you’re not using it.

“It puts it into a lower energy state like sleep mode.”

That’s if you don’t use the computer for fifteen minutes.

That’s the biggest energy saver.

Tiernan’s next tip is to simply turn off the machine when you’re not using it.

“It’s funny to me, people don’t just leave their cars on when they’re done with them,
right? They don’t leave them running in the garage or on the street. Yet, most
people in the U.S. leave their devices on in one form or another.”

Now, Tiernan says, there’s turning off a machine and there’s really turning off a machine.

“Even though you’ve turned many devices off on your household doesn’t mean
they’re not using power.”

Tiernan says computers always sip a little electricity out of your wall socket.

Printers, computer speakers and monitors can, too.

“Put your devices on a power strip. Flip that switch off and you’ll be doing yourself
and the environment a benefit.”

Now, there are critics of turning off your PC.

Shawn: “I have heard in the past that turning your desktop on and off again is hard
on your hard drive, though.”

Tiernan: “Well, a hard drive is and spinning up and spinning down throughout its
entire use. Does it put added wear on your hard drive? It really depends. Depending
on what you have loaded on it, your disk may be spinning up and down anyway, so
there’s a good argument to be made that turning it shutting it down for 8 hours that
you sleep may be better.”

So, what’s the bottom line if you follow Tiernan’s ‘turn it off’ advice for your PC?

On average, you could save $75 a year.

You can save even more if you use an Energy Star model.

But Tiernan says cutting power doesn’t just help your bottom line.

He says there’re more than a billion PCs on the market.

Cutting their power use can take a bite out of climate change.

For The Environment Report, I’m Shawn Allee.

Related Links

Searching for E-Waste Solutions

  • Many people do not know what to do with old computers and equipment, so they end up in the trash.

If you bought a new computer over the holidays, there are plenty of places to drop off your household’s old computer. But to prevent more of the old monitors, laptops and other items from winding up in landfills, some Midwest states are looking to make sure computer makers get involved in recycling their products. One of the few manufacturers that already helps re-use old computer parts is Texas-based Dell, Incorporated. The Great Lakes Radio Consortium’s Chuck Quirmbach went to a Dell-sponsored recycling center and has this
report:

Transcript

If you bought a new computer over the holidays, there are plenty of
places to drop off your household’s old computer, but to prevent more
of the old monitors, laptops and other items from winding up in
landfills, some Midwest states are looking to make sure computer
makers get involved in recycling their products. One of the few
manufacturers that already helps re-use old computer parts is
Texas-based Dell, Incorporated. The Great Lakes Radio Consortium’s
Chuck Quirmbach went to a Dell-sponsored recycling center and has this
report:


About a year ago, Dell helped set up and publicize a computer
recycling plant at a Goodwill Industries facility in Dell’s home city
of Austin.


(Sound of clunking)


Goodwill employees and volunteers sort through the hundreds of
boxes of computers and computer parts that are dropped off – at no
charge to the consumer – at the site. Newer computers are set aside
for repairs, and hard drive memories are erased. Older computers go
to a bench where workers like Paul take apart (or demanufacture)
them.


“I’m taking apart all the useable parts. Motherboard, power sources,
cards, ports, metal goes into bins, plastic goes into bins for
recycling and what not.”


(Sound of ambience switch)


Goodwill sells the reusable parts at its retail store elsewhere in the
building. Used LCD monitors, for example, go for as low as twenty
dollars.


Manager Christine Banks says some of the equipment is under
a 30-day Goodwill warranty. Other parts can be exchanged if the
customer isn’t satisfied. Banks says Goodwill is happy this computer-
recycling program makes a profit.


“Our operation does. However, there are 7 or 8 other Goodwills
throughout the country that do this that barely break even. We’re just
fortunate we have higher tech donations, a pool of employees with
more technology, it’s very tricky.”


Some states charge high disposal costs for unwanted computer parts,
which can contain potentially harmful chemicals. Those high costs can
make it difficult for a recycling program to get off the ground, but
environmental groups say the fast-growing pile of circuit boards,
monitors, and plastic parts can leach poisons like lead, mercury, and
cadmium into the environment.


They say small-scale projects like the one in Austin have to be part of a
broader effort to keep electronic waste out of the nation’s landfills. That
effort could include government mandates forcing manufacturers to
safely dispose of old products.


Robin Schneider is with the Austin office of the National Computer
Takeback Campaign.


“So, to really deal with the environmental problems of millions of
pounds of toxins, we’re gonna need something bigger than this. This is a
piece of it…and gonna need lot of pieces of it.”


Schneider says she’s encouraged that some Midwest states are
looking into manufacturer takeback programs. She acknowledges that
recycling may drive up the cost of new computers, but she also says
manufacturers may start redesigning computers so that it’s more
profitable for the companies to take them back.


For the GLRC, I’m Chuck Quirmbach.

Related Links