electricityUser
electricityUser on Hacker News
Re:Speek – in the spirit of Ricochet: a new messenger using Tor hidden...
on Friday March 25, 2022 @12:01PM (#30803796)
By quickly skimming through the README, I couldn't tell if it supports 1on1 chats or group chats as well.
Re:Threads Are a Bad Idea for Most Purposes (1995) [pdf]
on Tuesday January 28, 2020 @11:38AM (#22170994)
Did you click on the links in the comment above yours? ;-)
Re:Wind provided 37 per cent of Ireland’s electricity in Q1 2019
on Friday May 17, 2019 @07:33AM (#19938506)
Since 37% is an average there ought to be periods with a lot more than 37% coming from wind if 5% phases happen from time to time as well.
How is this greenwashing exactly?
Re:Tesla's Screen Saga Shows Why Automotive Grade Matters
on Tuesday May 14, 2019 @06:10AM (#19908176)
I bought mine in october 2007 for $300 with the unlockable AT&T sim card.
Re:CO2 in the atmosphere just exceeded 415ppm for the first time in hu...
on Tuesday May 14, 2019 @05:37AM (#19908037)
You only need a third of that to get the same amount of electricity out of them as by burning 10 kW of fossil fuels. Spread over 20 to 30 years that's suddenly not so much anymore. How much does the US spend on energy each year now? How much to secure the imports?
Re:CO2 in the atmosphere just exceeded 415ppm for the first time in hu...
on Tuesday May 14, 2019 @05:34AM (#19908026)
You forgot that this is primary energy consumption you two are writing about. 10 kW of primary energy consumption if replaced with solar requires only about a third of that to yield the same results since about two thirds are heat losses when converting fossil fuels to useable energy.
Re:Pinterest to price IPO below last valuation
on Monday April 08, 2019 @09:39AM (#19605058)
The website that made Google image search suck does an IPO?
Re:China wants to put a solar farm in space by 2025
on Monday February 18, 2019 @11:26AM (#19191800)
How do satellites prevent overheating? Radiators!
Re:What It Takes to Be in the 1% Around the World
on Tuesday February 05, 2019 @05:42AM (#19084175)
I am going to become a Nanny in Monaco then ...
Re:Magic Leap is real and it’s a janky marvel
on Wednesday October 10, 2018 @11:41AM (#18185909)
But is Techcrunch real anymore? 5 comments on their article and 4 of them are spam?
Re:SoftBank Group and Saudi Arabia plan to spend $200B building a sola...
on Thursday March 29, 2018 @06:29AM (#16705903)
If you get 2000 kWh/yr per kWp from PV there and have an installation of 200 GWp you'll end up with 400 TWh per year. If we assume a 25 year lifetime for this installation that's 9600 TWh. At cost of 200 billion dollars, wouldn't a MWh from this system cost close to $21 instead of $1?
Or - taking your numbers - the installation would have to last 400 years without operational costs considered. Isn't that a loss for whoever invests in something like this?
Re:Tesla has finished building the biggest battery in the world
on Thursday November 23, 2017 @08:23AM (#15764852)
I don't know what Australian electricity needs are, but we averaged 500 W over the last year in our 2-person household. This battery would be good for 10000 similar households for a day or 200000 households "for an hour and 20 minutes...ish".