This post is partially motivated by my colleague(I hope he is not reading this) who spent all his Christmas and New year Vacations at home with his PC still running next to my desk. I am amazed to calculate how much electricity he just wasted. Well, you wouldn’t leave your television ON for all day while you are at the office, and yet, across the world, millions of work PCs are left on all night—wasting energy, costing owners millions in utility costs, and contributing to global climate change.

Generating the electricity needed to power those computers requires hundreds of power plants that produce billions of tons of CO2 emissions. Many of those machines sit idle for 12 to 16 hours per day, burning electricity, but not doing any work, because businesses habitually leave their computers running overnight.So how much does this one click matters? Here is an awesome report published by Harris Interactive some time back.

Some Numbers Worth Understanding

A mid-sized company with nearly 10000 PCs,  wastes more than $165,000 a year in electricity costs for computers that have been left on overnight. By turning these computers off, an employer can keep more than 1,381 tons of carbon dioxide (C02) out of the atmosphere.  Across the nation(read USA), this adds up to more than $1.72 billion dollars and almost 15 million tons of CO2 . When calculated using EPA’s  Green House Calculator the emitted Carbon is equivalent to  Annual CO2 emissions of  4  coal fired power plants.

As of April 2007,  145,800,000 Americans have full-time jobs. 72 percent of all employed adults regularly use a PC for work purposes at their jobs. Combining these findings suggests that more than 104 million workers reach the end of the work day with a PC to shut off—or not to. Next most important things is to analyse the reason for this type of behavior from the office goers.

Workers Attitudes behind this Wastage:

In an enterprise like situation, when asked whose responsibility it should be to save energy in the workplace, 28 percent of PC users said it should be down to management or the IT department. More than half (53 percent) said they were not at all concerned about their companies’ carbon footprints, indicating that effecting change in “shut down” practices at the behavioral level might yield disappointing results.

Making Business Out of IT:

Almost all the industries (be it mid or large sized) are facing similar challenges of harnessing maximum output with minimum power and infrastructural expenditures. And with global recession the idea of Cost cuttings also include supervised use of Power and Infrastructures in the enterprises and commercial centers. No  company likes to waste money. On the surface, the financial impact of 24-hour computer power consumption may seem insignificant compared to traditional concerns such as payroll, supply, and rent—but the waste is actually substantial. A few important findings from enterprise point of view :

• Energy costs—typically 10 percent of the corporate technology budget—could rise to as much as 50 percent in the next few years.
• If not exaggerating, a good  Power management software can reduce a PC’s power consumption by 80 percent, allowing companies to save between $25 – $75 per desktop PC.
• Turning off PCs, with their heat-intensive power supplies, will also reduce the load on air conditioning equipment, leading to even more energy savings.

If you are working in/for an enterprise, its your responsibility to turn off/hibernate  your PC when you are not working. On the funnier side, Gary Hird, IT strategy manager at UK retailer, John Lewis, says “I joined the company in 1989 and one of the first things I noticed was that every light switch had a sticker next to it, reading ‘switch off, you’re burning my bonus” .

But on a Serious Note “It takes between 60 and 300 trees to absorb the yearly CO2 emissions generated by a single PC left on 24 hours a day. That means it would take between 1.24 and 6.24 billion trees to absorb the emissions caused by the nation’s office computers that are never shut down.”

Take one step towards being Green, try to hibernate the PC whenever possible.

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Briefly. With all this Chrome OS and HTML 5 talk, you’d think that we were already at the stage where we could run all apps in our browsers. Close, but one thing that I think is terrible about the current state of browsers is that they become so damn bloated the more you use them. Here’s Firefox, for instance, after just loading it and about 30 tabs:

My Macbook’s fans are running like crazy.

Apart from the obvious, that there needs to be better memory / processor management for tabs—optimally, unused tabs should use minimal percent of both—another big problem is the lack of visibility of what you have open in your browser. As soon as I have 10+ tabs open and a number disappear of the page or are in different browser-windows, I have no overview, not to mention little idea of what little flash- and other widgets are being opened in each page.

Some innovations, I’d like, are:

1. Grouping of tabs by domain-names, similarly to how Windows allows you to group windows by app.
2. The ability to control whether Flash is being loaded, what kind of flash, and what kind of other apps. Yes, I know about flash- and ad-blocking, but something more elaborate.
3. Better than 2, a common webpage standard for how much memory / processing a web-page should typically take. And perhaps a browser-imposed limit as to what pages get loaded or not.
4. An indication of where a tab is when I’m trying to load the same webpage or domain-page. E.g. I use Netvibes often, each of which has 5-15 widgets in each tab and thus consumes a fair amount of power. When I can’t find the right tab, I open multiple instances, which obviously slows down the browser some more.

All of this is relevant, I feel, both because of the “shift” we are seeing towards “Browser-OSs,” but also because there is a trend towards buying less powerful single-purpose machines often for use on the road. A bloated browser can use as much battery as running a game, the difference being that most mobile travellers know better than to run a game on the road.

Rant over. Would love to hear about Firefox extensions or Browser innovations that overcome some of these problems.

Vincent

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