Mvandenbergh

13 ms·

61.
by Mvandenbergh 4y ago
I agree that at current CapEx you could never run a plant 1/3 of the time and make it look good but I think this ignore two things: 1) If you take net zero as a hard goal, i.e. not one that is subject to economic tests except in relati
62.
by Mvandenbergh 4y ago
They would also allow 95% of a route to be electrified, leaving tunnels and sections under pedestrian and other bridges un-electrified and covered by small capacity batteries. Especially since the train is unlikely to be accelerating during
63.
by Mvandenbergh 4y ago
Interesting. Do you find that the mathematics of delays shows soliton properties? I know that highway traffic does.
64.
by Mvandenbergh 4y ago
Makes sense, most of my friends who are "almost buyers" of EVs i.e. they want to buy one but aren't sure whether this car or their next car will be their first EV are most concerned by charge point availability rather than an
65.
by Mvandenbergh 4y ago
Conceptually it is very simple to understand. The point that Moxie was making at the time was that, pragmatically, most users would end up not doing this. Just as most people share their thoughts on Facebook or Twitter and not on their own
66.
by Mvandenbergh 4y ago
In the case of Georgia, that must be a definition of "feel ok" that I've not encountered before.
67.
by Mvandenbergh 4y ago
The grid is sized on peak rather than average loads and at every voltage level spends many hours a day comfortably below a third of its capacity almost everywhere. In places with non-electric heating it can easily be at single digit % load
68.
by Mvandenbergh 4y ago
Assuming that no more than 50% of the 100kWh battery is used, and a full use of the 50kWh every day as part of diurnal power management, that's $0.032 / kWh. $32 / MWh wholesale is an arbitrage that could be done on many days
69.
by Mvandenbergh 4y ago
I will take you at your own word. Where could someone read your meta-research if one wanted to? Even if that is on a non peer-reviewed Arxiv type site?
70.
by Mvandenbergh 4y ago
*nah man, I voted it down.
71.
by Mvandenbergh 4y ago
Sure, but: 1) The writer, Cal Newport, gets his news from reading a broadsheet newspaper cover to cover every morning. (Not in the link but he's written about it elsewhere). I think it would be hard to argue that he's less well in
72.
by Mvandenbergh 4y ago
The reasons this is nonsense are twofold: First, I have never actually seen any comments here disavowing themselves of responsibility. It is always aimed at protecting others and this is rooted in the obvious fact that a very large number
73.
by Mvandenbergh 4y ago
I think it can be difficult to calculate the actual added value on this basis or at least, I've found it hard to do so for my own blogging which has also led to substantial paid work. That's because, although I can trace specific
74.
by Mvandenbergh 4y ago
As others have said, the fundamental challenge is that teaching, as usually defined, doesn't scale like that and that turning it into a non-interactive process removes much of what makes it more effective than just giving out a textboo
75.
by Mvandenbergh 4y ago
It isn't disingenuous at all if you compare per capita metrics. Yes, you may have to exclude some very anomalous countries that have models that couldn't scale - Luxembourg for instance - but a country like Sweden is a mix of citi
76.
by Mvandenbergh 4y ago
A lot of this work doesn't distinguish between styles of cohabitation. There has been other work done that shows a link between financial stability and length of relationship. Well off people in countries that have less strong marriage
77.
by Mvandenbergh 4y ago
There's not a rule against deliberately crashing a plane because it's not anticipated that anyone would. Of course there are a whole host of rules that would be inevitably violated by doing so in almost all circumstances.
78.
by Mvandenbergh 5y ago
That is all the capacity added together before de-rating. Capacity is de-rated based on how likely it is to produce during a system load peak. So a nuclear plant might be counted as 75% of nameplate to account for outage risk. Renewables ar
79.
by Mvandenbergh 5y ago
That might be true for what your direct boss writes on your annual performance review but what do his peers and his bosses think? What do other potential collaborators, bosses, and investors in your local area or your industry think? I thin
80.
by Mvandenbergh 5y ago
I think a lot of people, without meaning to be disrespectful of Ukrainian identity and sovereignty, looked at the conflict in the Donbas and Crimea and thought: "well, this isn't really acceptable in terms of respecting settled bo
81.
by Mvandenbergh 5y ago
The main difference (although that is not clear from the article) that this system is based on fixed proportions of usable water volume whereas water rights in the Western US states are mostly setup in order of seniority and (at least histo
82.
by Mvandenbergh 5y ago
I'm close to someone who has it, and I have to admit that my first response was also: "uh, what?". However it can happen. I guess my main reason for believing it is that I can think of many more plausible sudden death explana
83.
by Mvandenbergh 5y ago
This isn't true. The Transport Select Committee found that the loss of fuel duty from full electrification would need to be replaced by either a 5% rise in the base rate of income tax, or something else. Given that: 1) 5% on the base r
84.
by Mvandenbergh 5y ago
I would assume that class that is described as: "4 hours a night 6 days of week and I got a C. Less the 25% made it to end. Don’t think many of remaining passed. Got a lot out of it though." Actually is abstract algebra and not hi
85.
by Mvandenbergh 5y ago
Sure, that's an approach that has led to the success of Silicon Valley and the employment of most of the people on HN (as well as the fortunes of Y combinator).
86.
by Mvandenbergh 5y ago
The actual paper as well as the press release points something out that I think a lot of the "lol, Texas" discussion here is missing - many markets globally are Energy Only including all EU markets. (the only European capacity mar
87.
by Mvandenbergh 5y ago
and every single EU market is energy-only. (only UK has capacity market and that was held up in the courts for a while. obviously no longer in the EU)
88.
by Mvandenbergh 5y ago
At what IC50?
89.
by Mvandenbergh 5y ago
Fast travel and recording media lead to gains for the very best or most popular musicians who are now able to sell their music much more widely and play large venues in many cities more easily. It doesn't make the equivalent of the tal
90.
by Mvandenbergh 5y ago
Well, the Drinking Water Inspectorate talks about it all the time and carry out a pretty comprehensive survey programme to make sure that orthophospate is being added in areas likely to have remaining lead pipes. Lead service pipes are gett

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