251–260 of 597 posts
Back up to 60.080. They'll run a little fast if they can to make the remaining synchronous clocks catch up.
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No, not really. As far as I'm aware HVDC links are more efficient than AC links (even with AC/DC/AC conversion).
It looks like a tradeoff. The only place in the world doing a significant amount of long distance transmission is China. Their wind and coal resources are in the west, and demand is in the east, and transporting coal by rail just further increases air quality problems in the east. Based on what they are implementing, HVDC make sense at 800km+, and AC for shorter runs. I think it comes down to HVDC requires less condu…
https://en.wikipedia.org/wiki/Pacific_DC_Intertie
More interestingly--it dates to the Kennedy Administration.
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The second link says: "each utility is required to lower the demand on its system based on its percentage of the historic ERCOT peak demand. "each utility is responsible for determining how to implement the required demand reduction, most utilities use rotating outages for this purpose." There's about 25 different utilities, so who knows what each does. I'm surprised voltage reduction isn't used. It's very effective…
The grid has basically zero capability to change the voltage; frequency is all that matters. Frequency is so low that in the past hour any power line time base has fallen over 5.5 seconds behind. That’s a massive drop in frequency.
Problem is that: 1) People's use of energy is relatively insensitive to price, or they don't know the price, or few people care about the price when it comes time to need it 2) When you need the energy, it's too late to make the equipment/house more efficient, and when you don't need it, people don't think it's important to make it more efficient 3) Mandating that people upgrade their equipment is unpopular, they vot…
My parents live in Dallas and rarely use the heating because of cost; instead they wear scarves and mittens inside. They are running it now, because it is the coldest they've ever seen. When your alternative is to freeze to death, you pay. Finding fault with people because of that is insensitive and lacking in empathy. They know the cost, they also know what the temperature outside is. Resilience is an important prin…
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Holy cow! How in the world do you use that much? My old house in Colorado would use ~350kwh/month. Swap out that electric heater for a heat pump asap!
Big house (3700sqft or so), tall ceilings, four people working/schooling from home and an electric car as the primary family car. In 2019 I literally did not turn the heater on a single time, I don't think the investment in a heat pump would be worth it.
Does the the car that drives up your electricity usage that much?
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Except in places where the power is being stolen.
Example? I'm not sure what you mean by "stolen" but I'm sure there's a ton of mining that is occurring at a statutory or downstream low-rate (as opposed to C&I based on peak or wholesale subject to the real-time market). In those cases, the electric providers should be able to pay them to curtail load but it's frankly a travesty on all accounts.
Basically using electricity that isn't "yours" without paying for it.
Problem is that: 1) People's use of energy is relatively insensitive to price, or they don't know the price, or few people care about the price when it comes time to need it 2) When you need the energy, it's too late to make the equipment/house more efficient, and when you don't need it, people don't think it's important to make it more efficient 3) Mandating that people upgrade their equipment is unpopular, they vot…
The problem is it's the coldest night in about 30 years. Here in Austin, it's just past midnight, and it's already down to 13°F (-10.5°C). It hasn't been that cold here since December 23, 1989. Also, a lot of Texas homes have electric heat (except in the northern part of the state). Winters are relatively short and mild. Many homes use electric heat pumps as the heating source. They're energy-efficient and easy to in…
I've lived in Texas all my life and can't remember the last time that happened.
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A don't think a heat pump would help them in this weather.
Modern ones and designed for purpose go to -20C.
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Its pretty much LED bulbs and fixtures in the US. I think Trump administration reversed the original law but there are a few state laws that are even stricter. The manufacturers have all moved onto LEDs so no going back.
It would have been an executive order the Trump administration reversed, he wouldn’t have had the authority to reverse a congressional passed law.
> In 2014, the Department of Energy issued regulations that would extend the efficiency standards of the 2007 EISA law to some specialty bulbs, effective January 2020.[91] The new standards would apply to Edison, globe, and candelabra bulbs among others. In February 2019, the Department of Energy announced a proposal to withdraw this change. In September 2019 the Trump administration rolled-back these energy efficiency standards for lightbulbs with the Energy Department's publication of regulations in the Federal Register.[92][93] The Energy Department announced the reversal of the 2014 regulation that would have taken effect on January 1, 2020 and implemented the last round of energy-saving light bulb regulations outlined by the Energy Independence and Security Act of 2007.[94]EISA law to some specialty bulbs, effective January 2020
https://en.wikipedia.org/wiki/Phase-out_of_incandescent_ligh...