ghouse

7 ms·

31.
by ghouse 3y ago
Rectifiers (which convert AC to DC) are quite efficient. Apparently up to 98% [0] And then there is the voltage conversion, which traditionally happened on the AC side (inexpensive and simple AC transformers are generally why the transmiss
32.
by ghouse 4y ago
If a Real Estate Investment Truest (REIT), then yes.
33.
by ghouse 4y ago
I am a frequent flyer. When traveling by myself, I don't check. When traveling with my family, I do check. In the past 10 years, at least five times we've had bags delayed more than 48 hours. Like the linked article, I also had
34.
by ghouse 4y ago
Not all architects know. Source -- Am in month 21 of a construction project. Have caught more than a dozen mistakes made by both the architect and the GC's subcontractors.
35.
by ghouse 4y ago
Can't take knitting needles past TSA.
36.
by ghouse 4y ago
All of these costs need to be adjusted for capacity factor. The 3.2 GW is the maximum rating of the line. The line will almost never be at the maximum rating (due to security-constrained economic dispatch). And obviously solar only genera
37.
by ghouse 4y ago
Yes, that can be accurate in the spring, though with more than 2 GW of batteries now in CA, it's less common. One solution would be for them to charge less for electricity in the middle of the day (as the grid is awash) and thus provi
38.
by ghouse 4y ago
To be clear, net metering was never "paying" customers, but instead providing them a credit for the energy they delivered during the period they delivered it. So, export power during the "off-peak" period, you build a c
39.
by ghouse 4y ago
Yes. Other California, US examples are SMUD (Sacramento), TID (Turlock), MID (Modesto), IID (Imperial Valley), Redding, and Needles. Generally all have lower rates than PG&E, SCE, or SDG&E.
40.
by ghouse 4y ago
Alas the economic evaluation is more complicated than that. Grid solar requires transmission lines. The largest transmission line in construction right now for California load is called the Ten West Link. It will be 125 miles, have a max
41.
by ghouse 4y ago
Investor-owned utility monopolies are regulated by the state. Either Public Utility Commissions or Corporation Commissions. The alternative is publicly-owned utilities, like munis or coops. Typically the publicly-owned utilities have materi
42.
by ghouse 4y ago
Soil fertility is similar to irrigation. As fertility decreases, it can be compensated (to a point) by fertilizer, but at an increased cost. As the aquifers are pumped faster than they are replenished, water can be pumped from deeper dept
43.
by ghouse 4y ago
Yet the supply of office buildings continues to increase, exacerbating the imbalance.
44.
by ghouse 4y ago
Would be helpful to see this graph on a per-capita basis. Without accounting for differences in population, the utility is somewhat limited.
45.
by ghouse 4y ago
It will only get worse from here. Maybe instead of arguing whether externalities should be internalized, maybe we consider how much of the externality should be internalized.
46.
by ghouse 4y ago
So internalize the externality. The status quo is that the non-rich subsidize the carbon footprint of the rich. I have no problem with <celebrity> flying privately. I have a problem with subsidizing that flight.
47.
by ghouse 4y ago
Check the conversion of the energy content to usable energy. More of the Wh of the batteries become motive force than the Wh of the bunker fuel. Your conclusion isn't wrong; the density of the energy storage (be it bunker fuel as chemi
48.
by ghouse 4y ago
re: "prohibiting solar" -- many utilities are able to convince their public utilities commission or legislature that it's in the best interest of the state to prevent competition to protect their natural monopoly.
49.
by ghouse 4y ago
Please email me -- address in my about. Looking to hire someone to sell a Cu/Zn mine.
50.
by ghouse 4y ago
Are you based in the US? If so, please drop me a note regarding a previous producer in NW Arizona.
51.
by ghouse 4y ago
I just got back from a long hike in Rocky Mountain National Park outside of Estes Park, CO. Most of the hike was above treeline. We spotted a heard of elk and a local with whom I was hiking told me the elk were up there because the area h
52.
by ghouse 5y ago
In the US, most of the pumped hydro energy storage was built during the nuclear build out (because of the operating characteristics you note above). While chemical energy storage is growing quickly in the US, pumped hydro energy storage re
53.
US DOE to offer $6B to keep struggling nuclear reactors online(utilitydive.com)
175 points by ghouse 5y ago|405 comments
54.
by ghouse 5y ago
But the US is 120V, not 110V.
55.
by ghouse 5y ago
From the FAQ: > At a minimum, you need to provide 110-volt AC power outlets, public internet access.... In the US, 120 or 240 volts are used. Per ANSI C84.1-2020
56.
by ghouse 5y ago
> Grid scale batteries are definitely not cost effective or in existence. California has more than 1.5 GW of utility-scale chemical batteries interconnected to it's grid with another 1 GW anticipated to enter service by the end of t
57.
by ghouse 5y ago
> Because government regulation doesn't allow fixed power plants to charge a fixed yearly fee. If the government did allow this then the market would indeed price everything correctly. In the US, in most markets (except ERCOT/T
58.
by ghouse 5y ago
Only recently did PV becomes the least-cost source of new electric generation.[0] And new utility-scale projects take 2-7 years to develop. For example, TX is anticipated to add 10 GW of new solar generation in 2022.[1] As I write this (wh
59.
by ghouse 5y ago
In part, because the fixed infrastructure is built to serve peak demand, not average consumption. Bring down the peak (flatten the curve) and the rates will come down too. Or, put differently, rates are high exactly because California per-
60.
I Paid for My MBA with Pennies(mateocafe.com)
7 points by ghouse 5y ago|0 comments

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