this post was submitted on 25 Dec 2024
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101
how much power does your system need? (lemmy.ml)
submitted 2 days ago by [email protected] to c/[email protected]
132 comments fedilink hide all child comments
 

I wonder if my system is good or bad. My server needs 0.1kWh.

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[–] [email protected] 5 points 1 day ago (2 children)

Watt hours makes sense to me. A watt hour is just a watt draw that runs for an hour, it's right in the name.

Maybe you've just whooooshed me or something, I've never looked into Joules or why they're better/worse.

[–] [email protected] 4 points 21 hours ago (2 children)

Joules (J) are the official unit of energy. 1W=1J/s. That means 1Wh=3600J or that 1J is kinda like "1 Watt second". You're right that Wh is easier since everything is rated in Watts and it would be insane to measure energy consumption by seconds. Imagine getting your electric bill and it says you've used 3,157,200,000J.

[–] [email protected] 6 points 18 hours ago (1 children)

3,157,200,000J

Or just 3.1572GJ.

Which apparently is how this Canadian natural gas company bills its customers: https://www.fortisbc.com/about-us/facilities-operations-and-energy-information/how-gas-is-measured

[–] [email protected] 1 points 15 hours ago

I guess it wouldn't make sense to measure energy used by gas-powered appliances in Wh since they're not rated in Watts. Still, measuring volume and then converting to energy seems unnecessarily complicated.

[–] [email protected] 2 points 19 hours ago

Thanks for the explainer, that makes a lot of sense.