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Japan enacts law to restrict onshore wind farm construction


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wind power generation facilities raise concerns about interference with radar monitoring of the sea as well as wireless communication between satellites and ground stations.

Of course defense come first!

-11 ( +1 / -12 )

Or is this just another excuse so they can force the restart of the dangerous nuclear plants on the Japanese people!?

-5 ( +3 / -8 )

The problems with radar and wind turbines are due to the rotating blades. At some distance, say 40 or 50 km, the wind turbines will be below the horizon as far as the radar is concerned, thus posing minimal interference.

The article states that there are about 28 radar stations, not counting those operated by the US military, that are of concern in Japan. It should be relatively simple to calculate how far away wind turbines need to be so as to be below the line of sight of a given radar system, calculating based upon the height of the tips of wind turbine blades. Once calculations have been completed and circulated, it should be simple to approve permits for wind farms, so long as they comply with given restrictions.

5 ( +5 / -0 )

I am curious to know whether a wind turbine in a radar's blind spot would be able to be situated nearby the radar system. For instance, a turbine in a valley created by a mountain, or behind a tall and wide building, might not interfere with the radar signals. Surely it is worth a go see.

2 ( +2 / -0 )

Japan is great at telling people what they must not do.

-7 ( +2 / -9 )

Excellent news. Wind-farms with their ‘bat chomping, bird killing, eco crucifixes’ as someone once called them are not only a blight on the landscape but of zero (yes zero) environmental value. The concrete needed for their towers, the oil needed to lubricate the blades, and the electricity back up required to compensate for when the wind isn’t blowing (plus the fact that they only last about twenty years) totally negates any supposed benefit (even if you believe there is a climate crisis - there isn’t). They are a massive con and if the Japanese government has found a clever way to stop them without having to say anything heretical about the climate religion then well done them.

-5 ( +1 / -6 )

Solid-state turbines without blades


1 ( +2 / -1 )

even if you believe there is a climate crisis - there isn’t)

On one side the scientific community of the world clearly concluded there is a huge climate crisis and that wind is considered a sustainable, renewable energy source presenting clear and abundant evidence for both conclusions.

On the other side nameless people on the internet say all the scientists of the world are wrong, and their source is "dude, trust me".

It is very simple to understand which side is wrong.

6 ( +8 / -2 )

Just go for offshore then , problem solved ,but lets not take 20 years thinking about it

2 ( +2 / -0 )

Japan has no continental shelf at the coast. This means offshore wind for Japan is deep sea offshore wind, which is way more expensive. Onshore wind is cheap.

We live in a very scenic place but a few turbines in our view wouldn't bother me. I'd be up in arms if they wanted to build a new expressway or Shinkansen line.

1 ( +1 / -0 )

New offshore wind turbines can be located without attachment to the sea bed. Floating turbines.


1 ( +1 / -0 )

Those floating turbines still have to anchored to the seafloor and their power transmitted to land via undersea cables. That is harder and more expensive to in deep water than someplace shallow like the North Sea

0 ( +0 / -0 )

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