Recent comments in /f/Futurology

SandAndAlum t1_jaqsy07 wrote

It's ambiguous then as to what cf they mean.

New western offshore wind is in the 40-50% cf range. EU solar is 13% so there's a big range there.

10TW net final energy to replace existing 18TW of world wide primary energy and cover some growth sounds pretty close to most ballparks so 30TW of 30% cf sounds reasonable.

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SandAndAlum t1_jaqrcr1 wrote

30 * 8.760 is 260 not 26.

Net implying average output over the year. Ie. A 3.3kW nameplate tilting solar system in California is 1kW net. Primary energy is input, final energy is what is achieved. A 25% efficient gas engine running on tar sand oil with an EROI of 3 needs about 6kW of primary energy for 1kW of output. The 500GW or so of primary energy powering US transport can be replaced by 100GW of electricity. Similarly 200GW of gas heating can be 50GW of electric heat pump.

If the 30TW is nameplate then the capacity factor cancels some of the waste heat, so it's merely 10x what the US uses not 30x.

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Alejandro_Meliche t1_jaqiojl wrote

If you make in the long run, an AI-based app that gives you laws that you might break and potential sanction if you do something in your country, but be sure to specify that information won't be given to the third parties. As a law student, add ability to see which laws exactly will affect your situation. If it's short-term, make an app that makes recipes for random dishes

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BenjaminHamnett t1_jaqdkh0 wrote

Where are we getting these? How come I never see a wind turbine or solar panel factory run on alternative energy? I hope we can build these all next to hydro dams and geothermal plants, tidal etc but something tells me those are expensive exceptions and not the norm

Until then, these are batteries that we probably don’t want to see how they’re made

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VincentGrinn t1_jaqccyc wrote

bruh how tf you going claim a solar farm is an eyesore

do they commute to work in a helicopter or something?

its not even at ground level or anything! it was suppose to be ontop of a mesa with a setback from the edge that made it out of line of sight

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VincentGrinn t1_jaqbzg9 wrote

south australia is somewhere around 15-25% renewables from what i can see

iceland is 25% geothermal 75% hydro

paraguay is 99.8% hydro and 0.2% biofuel which is honestly incredible, they use like 3x as much power as iceland

also apparently albania and the DRC are 100% hydro but that seems odd

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VincentGrinn t1_jaqbf65 wrote

not exactly hard to be cheaper than fossil fuels, i mean the global fossil fuel industry is subsidized 16 billion dollars PER DAY, and is still more expensive than renewables

on an entirely unrelated note the global fossil fuel industry makes a profit of 6 billion dollars per day, way to go guys

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Psychological-Sport1 t1_jaq9p39 wrote

Initially yes, but once the rich demonstrate successful aging reversal tech, and use it on themselves then all their followers will sit up and take notice, if bill gates made many billions selling Microsoft Windows with every new computer then how much would insurance companies charge if you got your anti-aging tuneup every 10 years ???

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Radulescu1999 t1_jaq5yy1 wrote

>The current petroleum product mix being consumed is 130,000 TWh of coal, oil, and gas. It’s growing at a rate of 1000 TWh per year.
>
>Where does he get 30 TWh?

"Normally the consumption is given in TWh, which is an energy unit. One TW corresponds to 8,760 TWh per year."

130,000TWh/8760TWh = 14.84TW

30TW > 14.84 TW

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