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RegGuheert last won the day on February 17

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About RegGuheert

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  1. Bump. A friend of mine has just shown me the website desmos.com . I have now added links to the posts above for the line, the parabola, and the circle to online interactive graphs that I created to match my equation sheets. There are five graphs in total. These graphs contain sliders which allow you to adjust the coefficients in the equations and see their effects on the graphs. Please try out these links and let me know whether you think these graphs will be useful learning aids for students.
  2. While the controversy surrounding Griddy is understandable, I want to point out a trend that I have seen for some time now: Obfuscation of electricity bills. While I live in an area where I have exactly one choice and no time-of-use metering, I have communicated over the years with solar users from around the country. Some of the plans available are so complicated that it is nearly impossible to determine which plan is best for a given customer. Specifically, I am talking about plans I have seen from PG&E where the solar customer COULD NOT DETERMINE whether he/she was better off wi
  3. I showed a map of both states. Do you really think that this event was somehow much more of an outlier in one county in Texas than it was in the adjacent county in Oklahoma? Because I think it was equally as rare in both places. The ONLY difference was that the county in Texas had nearly 100% of their customers blacked out while the county in Oklahoma had NONE. I don't understand your question about who pays for the extra capacity in Oklahoma given that electricity is CHEAPER in Oklahoma. Here are the electricity rates in those two states as of June 2018: Texas: 11.36 cents/kWh
  4. Of course I can. Oklahoma both maintains a capacity market AND does NOT ALLOW power plants to charge $9000/MWh for electricity. That's a "feature" of the Texas plan, as I posted above. Put another way, In Oklahoma, power providers are paid to maintain margin to be able to address emergency needs as a matter of course. In Texas, NO ONE GETS PAID TO PROVIDE SUCH CAPACITY. The result is that Oklahoma utilities incurred extra costs to maintain standby capacity but were already paid for that, so they are not allowed to gouge their customer when their standby capacity is put into play.
  5. I suppose you can imagine that they are separate costs until you consider that electricity is an essential service in modern America. Our cities are not structured like those in parts of India where the power goes out several times every day (literally). Our systems depend on power being available 24/7. Anything less than that is a failure and results in costs being incurred by the electricity customers. I will plot the maps of Texas and Oklahoma outages from last Tuesday morning for everyone's benefit (the first two were at the same point in time): Texas (no capacity market and
  6. Serious question: Is this only a Griddy thing? What is happening to customers of other providers?
  7. I believe you are completely ignoring the GIGANTIC costs which have just been foisted onto every single electricity customer in the form of destroyed property which must now be repaired or replaced. Or do ERCOT and the electricity generators pay for all of those repairs? As far as whether the capacity market solves the problem: It always has in the past. Please note that this recent event in Texas has been predicted for decades for Texas: ever since they eliminated the capacity market.
  8. That sounds like a statement of faith, but you have not provided evidence. I will point out that every other state in the U.S. has a capacity market and that some of those states have lower electricity prices than Texas.
  9. I personally think that ERCOT has created a system under which electricity customers are on the hook for both the consequences AND the costs of failures during extreme conditions. To use an economics term, they have allowed the electricity providers to externalize those costs and risks associated with extreme conditions onto the consumer. The problem is that THEY NEVER INFORMED THE CONSUMER THAT THIS IS WHAT THEY WERE DOING. Have a look at this article and see how they have presented the idea of an energy-only electricity market: Summer price spikes are a feature of Texas' power market,
  10. Wow! That's the best part of pot roast! File this under "Reg can't help himself": I wonder if it is the lead leaching out of the crock that makes the potatoes and carrots so soft. 💨
  11. Note that the utilities were paying $9000/MWh for electricity for a couple of days during the worst of the outages. That is $9/kWh, or about 100 times what we normally pay here in VA. On colds days like today when it got down to 10° F (just briefly), our all-electric home will consume over 100 kWh of electricity. Assuming a small markup to $10/kWh, that would cost over $1000 dollars for one day's worth of electricity!! Here is an article with some more discussion of what may be coming to Texans who are already suffering from this event: As Texas deep freeze subsides, some househol
  12. I just want to point out again that you can have all the insulation in the world and your pipes can freeze in cold weather. The simple fact is that many houses are built "up north" that have a pipe or two that has been improperly insulated and that fact is not discovered for YEARS because the right weather conditions did not exist for that pipe to freeze. Those problems are handled on a case-by-case basis, corrected, and then that house is good going forward. Since Texas recently received weather that was more extreme than had occurred since many (most?) of the houses there had b
  13. I get that. That is what my sister installed. I had a bunch of issues with that thing: - Her well was hand-dug in the 18th century and is only about 60 feet deep. Mine was drilled at the end of the 20th century and is 250 feet deep with the main pump at 240 feet. I think our water level is pretty far above that level, but still it is much farther down than theirs, meaning that pumping would be more difficult. - Most modern wells have plastic do-dads every 30 feet or so to dampen the twisting of the pipe in the borehole at pump stratup. Those would make it hard to insert another
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