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I remember there was a huge lignite strip mine right off I45 near Buffalo. The power plant was right next to the mine. Someone joked that it was a dirt fired plant. Then there was the Alcoa Aluminum plant in Milam County that generated electricity for its own use from the local lignite. It was the major tax payer in the county. Now that it is all closed down, our taxes on the property have gone through the roof. I need to run some goats on the property to get an agricultural exemption. I could try to claim the armadillos as live stock but I doubt that would fly.
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Deer qualify as live stock for ag exemption, why not dillos? Did some pig hunting in Rockdale on the plant grounds. The water would shock you.
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Ones that are down for "inspections" or minor overhaul activities might be able to be sorted out quickly and returned to service. It is in the interest of the power producers because the cost of power was WAY up during this episode. Finally, many of the peaking units that are around and only fired up during summer peak, are on interruptible gas sources. In the summer, this is not a problem. But in winter, if gas is curtailed, you shutdown. And they were shutdown to allow gas for heating. The meaning is that the system capacity is not the same year round. |
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The single shaft combined cycles and many of the non-bypass HRSGs can't be cycled as well as easily the stack/bypass HRSG systems. The units I worked on in Pakistan had stack bypasses and they has serious control and sealing issues. Poor damper design required lots of torque to close against the exhaust flow. Every time the manufacturer fixed a break in the system, the next weakest link would fail! Oh and most of the REALLY new Gas Turbines are pre-mix Dry low NOx systems and they are nowhere near as capable as they used to be. I've been out of that game for 15 years, but I don't think the tech has moved on that much. |
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https://i.pinimg.com/originals/cc/f8...e8fbf73d63.jpg |
Looking at those power consumption charts...
Seems that Texans (and everyone) should be thinking more about insulation. |
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I am comparing capacity as reported in the immediate preceding days and that indicates a significant drop in capacity overnight. |
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Most of the houses around here are wood frame on concrete slab. All walls and attics are insulated with newer houses using spray foam insulation in walls and attic rafters. Most exterior walls are 2x4 on 1 and 2 story houses. |
A lot more insulation, even slabs, and attention to air leaks. Further North add double double-pane windows. (windows lose a lot of heat compared to a wall)
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I think one of the big problems is we always prepare to fight our last war. And none of our last freeze wars were anything like this. You can be assured plants will have a big list of lessons learned after this. |
My wife talks about shrink wrapping the windows in the winter in Wisconsin to add an extra seal.
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My wife was a student living in a crappy old house back then :)
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It's still done in houses w old windows in extremely cold places like MN or WI...doesn't even have to be a crappy house. :)
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yep. https://youtu.be/F9Ne50TfPn4?t=8 (for those who are asking WTF are they talking about?)
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Building an air tight house will allow mold to grow. I'm at 50F and 45% humidity in my garage. It'll be back into the 70% range pretty quick.
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There are heat recovery ventilation systems. Which move stale air out and fresh air in thru a cross or counter-flow heat exchanger.
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Almost all homes here have masonry basement under wood framed structure and asphalt shingled roofs. 6” pink insulation, possibly 1” blue board insul. Completely wrapped (Tyvex), with vinyl siding and trim. All seams caulked. Sometimes heated water is piped through the concrete basement floor. Min. 12” pink in roof. If the plumbing is inside the envelope, not much of it will ever freeze. |
And the Water lines come in below the frost line.
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