How to reduce PC energy consumption?


I'm looking at ways to reduce my company's energy consumption. One it's good for the environment, but Two and more importantly, we're looking to save some money. I know that LCD's use much less electricity than CRT's, but what else can I do besides setting up a group policy under Active Directory to sleep our workstations every night after 8pm?

Topic: Green IT
Answer this Question


6 total
Vote Up (31)

You're probably using a lot more power for your multi-cpu, multi-core servers and hard drive collection /NAS / SAN than you are for a few office workstations. Maybe you should look into migrating some of your servers to the cloud? LOL Oh right, then the power consumption is just taking place elsewhere.

Vote Up (31)

You might want to inventory all your computers and remove whatever expansion cards that you're not using. It's probably not such a big deal with newer pc's running Windows 7, but we found that our older users on XP machines sometimes have modems or soundcards or such attached to their computers that they don't use/need. Eliminating those cards will reduce a pc's power draw.

Vote Up (31)


Our company banned plugging in personal items at your desk that aren't work-related. It's kind of a creepy rule but we had one guy (won't name names) who nearly set his cubicle on fire with a hotplate he used to heat up his soup rather than going to the break room and eating with the rest of us. With this new rule in place, I started looking up ways to reduce power consumption at home and learned that a lot of household devices are drawing power even when not in use - like the dvr, the toaster, etc. There's no way I'm unplugging the coffee pot every day - I'll never remember all that. But I discovered that some companies like Belkin are making new surge suppressors that can monitor or turn off the devices that are plugged into them. This might be an option for your office, even though it wasn't for mine.


Vote Up (28)

One of the biggest sources of heat (which must be cooled) and noise in pc's is the power supply (PSU). Traditionally, when modders talk about hot-rodding their systems, they emphasize the case design or the flashy fast/new parts that use lots of power. However, there's a growing movement towards making "silent pc's" which is also dovetailing quite nicely with our shared concerns regarding energy reduction and saving the environment. Perhaps the PSU is overlooked by most people except for gamers, who want / need more power. But the green/quiet movements are inspiring fanless, energy-efficient power supplies for desktop computers. I recommend checking out the Corsair VX450W. Now it costs $80 or so online, so if you were planning to outfit an entire office that will cost a bunch of money up front. But you'll get that money back over the course of the 3-5 years that your office keeps your computers running. And as an added bonus, your pc's will run quieter as well.

Vote Up (17)

Your idea is entirely great, replacing CRT into LCD or LED monitor is way effective in saving energy, and for the old one, you can sell or donate them instead to a company that are using anaerobic digester for scrap or waste product. For the energy consumption, you can always turn off every system once they are not being used, unplug them if necessary.

Vote Up (17)

You might want to consider doing an inventory of these machines and asking yourself if you really need all of them. Are they all worth keeping up and running? You may have vampire computers leeching power that aren't even being used that much.

Sometimes it's a good idea to step back and start from scratch. Figure carefully if you really need every computer that is currently running in your facility. Shut down the ones that aren't performing necessary, useful functions and get rid of them if you can.

Ask a question

Join Now or Sign In to ask a question.
Greenpeace has marked Google, Apple, and Facebook as the cleanest datacentre operators for transparency, policy, efficiency, and advocacy in its most recent Clicking Clean report, published this month.
Intel and SGI have been testing a supercomputer that's kept cool by submerging the electronics completely in fluid, a system they say can dramatically reduce energy bills.
Jules Verne would be impressed, but it's only one step toward an attempt to provide Internet access to remote areas.
Along with more air turbulence and flight delays, global warming presents multiple tech market opportunities.
Not to be outdone by rival LG, Samsung is getting in on the smart lightbulb market.
MIT researchers have taken the first steps toward creating solar panels from living material by combining bacteria with nonliving materials such as gold that can conduct electricity and emit light.
White House, tech firms to cooperate on turning environmental data into easy-to-use tools.
Nissan has found a green avenue to solve a potential end-of-life cycle problem of lithium-ion batteries installed in electric vehicles.
CIOs need to ditch a "server mentality" in favour of a service model for a greener IT agenda to take hold, according to a Credit Suisse IT veteran.
Green America, a D.C.-based non-profit group, and The Nation magazine launched a campaign Wednesday intended to persuade consumers to boycott Apple products unless the company makes changes in its production and supply chain operations.

White Papers & Webcasts

See more White Papers | Webcasts

Join us: