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| bruce bowser <bruce2bowser@gmail.com>: Oct 30 03:49PM -0700 Peter, solar and wind are growing, the rest are dead (or they just don't know it, yet) |
| Jeff Layman <Jeff@invalid.invalid>: Oct 31 08:46AM On 30/10/2022 22:49, bruce bowser wrote: > Peter, > solar and wind are growing, the rest are dead (or they just don't know it, yet) Unless battery storage is improved and expanded exponentially, that would only work with a world-wide grid. Wind power is not predictable or reliable, and in winter when you most need it you can get cols when no wind blows for days. So you have a world-wide grid to link vast solar arrays on both sides of the globe to ensure that power is available everywhere day and night. It would be similar to the gas pipeline "grid" we have at present in Europe. That's working well with Russian gas, isn't it?... -- Jeff |
| "Peter W." <peterwieck33@gmail.com>: Oct 31 04:09AM -0700 On Monday, October 31, 2022 at 4:47:01 AM UTC-4, Jeff Layman wrote: > On 30/10/2022 22:49, bruce bowser wrote: > > Peter, > > solar and wind are growing, the rest are dead (or they just don't know it, yet) Against stupidity the very gods themselves contend in vain. Schiller Both wind and solar require pretty large footprints to make power at utility quantities. Wind requires roughly one acre per megawatt - this assuming that the other open land required for clearances may also be used for farming or other similar purposes - just not housing, public buildings or schools. A solar farm requires between five (5) and ten (10) acres per megawatt depending on location. Use 7.5. Nuclear power requires very roughly 10% of the footprint of solar, but the plants produce far more power per acre, so the footprints for a large nuclear plant seem large - but they are not. There is enough nuclear fuel on the planet *right now* to last very nearly 1,000 years at present levels of consumption. Put another way, present technology uses about 9.5% of the energy in the fuel. Using presently available processes and technologies, that may be extended to well over 50%. There are over 1,500 boreholes in Nevada, alone that will be radioactive for the next 30,000 years or so. One (1) of the larger ones is capable of holding all the nuclear waste generated from all nuclear power plants world-wide. There are 1,500 of them, once again. In Nevada, alone. Once again. 93 US-based nuclear plants produce 19% of the total power used in the US. Electricity consumption in the United States totaled 3,930 terawatt hours in 2021. Of that, 746.7 terawatt-hours were generated by nuclear plants. One (1) Terawatt = One Million (1,000,000) megawatts. So, vastly oversimplified, the standing capacity for power generation must be 1/24th of 1/365th of total consumption. That comes to 85,240 MW for nuclear. That comes to 448,639 MW entirely. 490 nuclear plants using present-day technology would do it, at an average of 100 acres each, or 49,000 acres. That comes to 3,364,726 acres for solar. That comes to 4.3 Rhode Islands. Very nearly four times that in actual practice, as last I looked the sun does not shine at night, weather still happens, and above the tropics, seasonal variations are an issue. As to wind, those locations where it is practical are limited such that it is doubtful that, for instance, whether any of several interior US states would have sufficient capacity, and areas where there are regular high winds, deep cold or other conditions would also be limited. Any nuclear ship or submarine will demonstrate the portability of nuclear power. Peter Wieck Melrose Park, PA |
| James Yuan <unionwellchina@gmail.com>: Oct 31 12:56AM -0700 在 2009年4月28日星期二 UTC+8 06:52:05，<Dave Plowman (News)> 写道： > *I used up all my sick days so I called in dead > Dave Plowman da...@davenoise.co.uk London SW > To e-mail, change noise into sound. Deepmaterial is reactive hot melt pressure sensitive adhesive manufacturer and supplier, manufacturing one component epoxy underfill adhesives, hot melt adhesives glue, uv curing adhesives,high refractive index optical adhesive, magnet bonding adhesives, best top waterproof structural adhesive glue for plastic to metal and glass, electronic adhesives glue for electric motor and micro motors in home appliance. For more visit: https://www.epoxyadhesiveglue.com/ https://www.deepmaterialcn.com/ |
| James Yuan <unionwellchina@gmail.com>: Oct 31 12:50AM -0700 在 2020年4月15日星期三 UTC+8 12:07:42，<Mike S> 写道： > please be aware that there are certain types - including polyethylene > and polypropylene sheet - that it will not adhere to. > https://www.acplasticsinc.com/informationcenter/r/the-best-adhesives-for-plastics Deepmaterial is reactive hot melt pressure sensitive adhesive manufacturer and supplier, manufacturing one component epoxy underfill adhesives, hot melt adhesives glue, uv curing adhesives,high refractive index optical adhesive, magnet bonding adhesives, best top waterproof structural adhesive glue for plastic to metal and glass, electronic adhesives glue for electric motor and micro motors in home appliance. For more visit: https://www.epoxyadhesiveglue.com/ https://www.deepmaterialcn.com/ |
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