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Comment Re: 2050 is right along the corner (Score 1) 58

There's not a lot of surface coal any more and the amount of oil which could be pumped in an apocalyptical situation is minimal. Deforestation is self limiting.

Technologically advanced civilisation is also a luxury. If WMD, or epidemic, or demographic collapse, or ecological collapse drag down supply chains with them, we'll get pretty close to net zero.

Comment Re:Why for only solar power? (Score 1) 58

PS. there are grid forming electronic statcoms in commercial service, that is a fact. It's complete fantasy that an electronic control system somehow couldn't respond fast enough to a fucking 60 Hz sine. Grid following systems obviously are dog slow, because they are designed to be. Grid forming ones are instant relative to 60 Hz, limited only by the self resonance of the gate drivers, a millisecond or so. A msec distortion on the sine at the source is not a spike, it's irrelevant, it will be low pass filtered away by the grid at negligible distance.

Comment Re:Why for only solar power? (Score 1) 58

Spain and the rest of the world runs most inverters as grid following. That's not down to cost, but down to planning.

There is nothing magical about mechanical inertia which makes it impossible to do it electronically. Material wise any existing grid following inverter can move power arbitrarily across a single cycle, that's just the nature of a bidirectional DC/AC convertor. It's relatively cheap to add enough storage to give an inverter the same time-constant inertia as generator too ... what is lacking are incentives to build inverters that way.

Longer term storage is a fundamentally costly, inertia is not.

Comment 2050 is right along the corner (Score 1) 58

Nothing which is needed for net zero by 2050 is wasted, because a little more or a little less emission savings in such a short timeframe are irrelevant. New England, the central U.S., and Tennessee need to get to net zero too a cross nation HVDC network making the whole US dependent on a couple southern states is probably not how those states want to get there.

So build more solar, build more electrolyzers, build more storage (straight hydrogen, or chemically stored in some other form) everywhere. That's how you get to net zero with renewables. The united states is already behind schedule, worrying about optimality of emission savings is missing the forest for the trees.

Comment Re:It *is* social media ... (Score 1) 125

I'm conflating recommend with recommend? Netflix doesn't just recommend within a category, they have a ML personalised recommendation system, aka engagement algorithm. Of course movies and series have somewhat reliable age ratings and youtube videos don't.

Youtube is democratised media more than social media. A very low barrier to entry distributor.

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