bobins wrote: ↑
11 Nov 2019, 21:24
"All wind turbines are designed for a maximum wind speed, called the survival speed, above which they will be damaged. The survival speed of commercial wind turbines is in the range of 40 m/s (144 km/h, 89 MPH) to 72 m/s (259 km/h, 161 MPH). The most common survival speed is 60 m/s (216 km/h, 134 MPH). Some have been designed to survive 80 metres per second (290 km/h; 180 mph)"
My original point was actually relating to the fact that all
energy generating methods have their drawbacks and no one method is the best, nor should we rely on any one method.
And if a once in 30 year freak tsunami wipes out a few dozen offshore wind turbines nobody is injured as they're all unmanned. As they're a distributed system the ones that aren't taken down keep working once the storm has passed. Done properly, wind generation has a massive diversity factor.
Quite a different scenario than something like Fukashima where damage to the reactors both caused risk of harm to people requiring evacuations and took out the entire generation output of the Fukashima plant in one blow. One problem with nuclear is its anything but distributed. If a nuclear reactor has a problem that takes it offline, whether accident, unplanned maintenance etc, that is a large chunk of generation lost.
How many oil rigs blow over ? More than you realize....?
The Seacrest Drillship disaster in the South China Sea, 430km south of Bangkok, Thailand, killed 91 crew members on 3 November 1989. The 4,400t drillship was anchored for drilling at the Platong gas field owned and operated by Unocal. The drillship was capsized by the Typhoon Gay, which produced 40ft-high waves on the day of the accident.
I'm not sure what relevance a drilling ship capsizing has to the fixed oil platforms we're talking about ?
The Ocean Ranger
oil drilling rig disaster, which occurred in the North Atlantic Sea off the coast of Newfoundland, Canada, on 15 February 1982, is one of the deadliest offshore oil rig accidents in history. The offshore oil drilling capsized and sank, killing 84 crew members on-board.
The rig was capsized due to a very strong storm, which produced 190km/h winds and waves up to 65ft (20m) high.
The Glomar Java Sea Drillship
disaster took place on 25 October 1983 in the South China Sea. It caused the deaths of 81 people when the drillship capsized and sank at depth of 317ft, approximately 63 nautical miles south-west of Hainan Island, China, 80 nautical miles east of Vietnam.
Operations ceased prior to the arrival of tropical storm Lex as it approached from the east of the drilling site. Global Marine’s office in Houston, Texas, reported that the drillship was experiencing 75k (138.9km/h) winds over the bow, but the contact was abruptly lost."
https://www.offshore-technology.com/fea ... s-4149812/
I could go on.......
Good job wind turbines are not manned like oil platforms....
Can you find any references to capsized off shore wind turbines ? I'm sure there have been some, but I haven't heard of any. If some are occasionally damaged by freak Tsunami's then, meh, that's just the price of doing business out in the ocean. As long as nobody is injured and it doesn't cause widespread damage and loss of power.