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What's a Watt?

by thriftyT / February 23, 2007 2:47 PM PST

A watt is a unit of power: energy/time
power x time = energy

e.g. 100 watt light bulb left on for 10 hours uses how much energy?
100 watt x 10 hours = 1000 watt hours (otherwise known as 1 kilowatt hour)

Tom was wondering about the wattage ratings for the PS3, Wii, xbox. It doesn't matter how much time you use (the power has nothing to do with that 30 minutes you mentioned in the podcast)

PS3 193 watts
xbox 183 watts
Wii 17 watts

ENERGY CONSUMPTION (for one hour of use)
PS3 193 watt hours
xbox 183 watt hours
Wii 17 watt hours

Pretty easy, but pretty easy to confuse to.

Part of the power differential may be due to the fact that the Wii controllers have their own energy supply (or is it "power" supply?); i.e. batteries. But the big differential (if those figures are accurate) would have to be the CPU right?

In any case, the power differentials of the consoles are reduced when one factors in the amount of power that the players exert playing Wii vs. sitting down and playing the PS3 =)

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360 and ps3 use wireless remotes too :)
by robstak / February 24, 2007 2:44 AM PST
In reply to: What's a Watt?

the power consumption is roughly proportionate to the physical size, no? lol more parts to power, just don't compare them to a hair dryer Happy

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No. The big difference is that Wii was designed for...
by Owyn / February 24, 2007 4:28 AM PST
In reply to: What's a Watt?

Low power consumption and heat dissipation.

e.g. A design requirement for the Wii was passive cooling, i.e. no fan.

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But it's 3d hardware is pretty weak
by Nicholas Buenk / February 24, 2007 5:14 AM PST

No state of the art graphics on the Wii.
Anyway, I heard from a friend who moved to Japan, that electricity is extremely expensive there, so power efficiency matters a lot.

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good point
by thriftyT / February 26, 2007 3:02 AM PST

in this case the lower processing power of the Wii probably contributes to lower power consumption, lower energy wasted as heat, and no fan.

Kinda curious how what the peak power consumption is for the PS 1 or PS 2 or xbox...

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hybrid on the grid
by thriftyT / April 13, 2007 11:01 PM PDT
In reply to: What's a Watt?

re: 4/10 BOL
Veronica said that a plug-in hybrid could return "9 kilowatts per hour" back to the home electrical system.

I'm pretty sure she meant 9 kilowatt-hours (kwh) of energy.
Tom was right in that it is a significant amount of energy (after all it is enough to propel a car).

For perspective 9 kwh can:
- keep ten 100-watt lights on for 9 hours
- run a Nintendo Wii for 450 hours

However, this is not enough energy to power a lethal ray-gun or laser-gun. =)

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