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.
