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US blocks all offshore wind construction, says reason is classified

arstechnica.com

201–210 of 585 posts

Re: US blocks all offshore wind construction, says reason is classified

#201

Earlier quoted context omitted.

Yea... I don't trust the motivations, but can confirm that on AA radars looking low (Where you might find UAS or just low-flying aircraft), wind farms show up as clusters of false hits.

It's not like they're moving around though.

Yea; it will be obvious if you've accidentally locked into one, then look at it with eyes or other equipment. And the 0 ground speed. But UAS could hide in them effectively I speculate?

Re: US blocks all offshore wind construction, says reason is classified

#202

Earlier quoted context omitted.

Nuclear is insane levels of expensive likely due to overregulation. It is important for base load power and overnight power and should always be the backing of the grid frequency. Total loss of grid frequency is much more difficult to recover from with synthetic inertia. A healthy grid should have all of the following - Nuclear base load that keeps the grid stable and pick up from low solar - Gas plants for surge pow…

> overregulation. Americans love to remove regulation to make things cheaper (and to enable capitalistic monopolies, but that's a different matter), then cry when people die (or worse). Some things needs to be regulated, esp. if mistakes are costly to the planet and/or people on the said planet. So yes, nuclear should be regulated, and even overregulated to keep it safe. We have seen what Boeing has become when it's…

So yes, nuclear should be regulated, and even overregulated to keep it safe.

Here's what overregulation of nuclear power has done for us over the past several decades: "We can't risk releasing radioactive pollution in an accident, so we'll build coal plants that spew it into the air during normal operation instead."

Re: US blocks all offshore wind construction, says reason is classified

#203

I looked into this a little because I was curious. I guess the ostensible "national security" rationale (which clearly is not the only reason!) for this is that turbines severely degrade the utility of radar surveillance along the coastlines. This is particularly relevant for low-altitude incursions and drones. Now, other large governments (UK) have resolved this in several ways, including the deployment of additiona…

Here in Sweden a bunch of offshore wind farm project and even residential PV installations are blocked by the military for unspecified reasons that everyone assumes is that it blocks radar and other signal intelligence. Even though you can partially work around the issue with better onshore equipment or just placing the stuff on the other side of the interfering equipment it is still a step down from not having any i…

I'm surprised residential PV even interacts with radar -- or is that the other signal intelligence part?

Re: US blocks all offshore wind construction, says reason is classified

#204
post #133

I looked into this a little because I was curious. I guess the ostensible "national security" rationale (which clearly is not the only reason!) for this is that turbines severely degrade the utility of radar surveillance along the coastlines. This is particularly relevant for low-altitude incursions and drones. Now, other large governments (UK) have resolved this in several ways, including the deployment of additiona…

So clearly this is politically motivated Trump has been charging at windmills ever since he was defeated in UK courts in a case where he didn't like that wind turbines (that provide enough power for 80,000 homes) could be seen from his golf course. https://www.bbc.com/news/articles/c15l3knp4xyo

Combination of he's vindictive and he's making an example of what happens when you don't preemptively pay him a bribe.

Re: US blocks all offshore wind construction, says reason is classified

#205

Earlier quoted context omitted.

US deploys nuclear energy at over $10/watt meanwhile solar and wind are deployed around $2/watt (for levelized cost of electricity) including battery storage which means they are deployed for roughly the same cost as natural gas (so, direct competitors). Don't let comments like this fool you, nuclear is far from being competitive with natural gas. Even in countries like south korea that can deploy nuclear the cheapes…

> US deploys nuclear energy at over $10/watt meanwhile solar and wind are deployed around $2/watt (for levelized cost of electricity) That's when storage is not considered. Once storage is factored in, the LCOE becomes anywhere between $5 to $20. In the US, solar makes a lot of sense in the southern states, less sense in Midwest and WA. That being said, the US still has plenty of capacity to accommodate more "sewer g…

That is not correct, and doesn't even pass the sniff test. Solar is deployed at ~$2/watt and you're saying batteries are increasing that cost 2.5x to 10x? So, someone installing a home battery system is paying up to 10x their solar install cost to also have battery backup? No way.

Also, battery tech continues to improve rapidly, we're seeing breakthroughs like this rapidly reduce the price: https://spectrum.ieee.org/co2-battery-energy-storage

A good video on LCOE: https://www.youtube.com/watch?v=i-891blV02c

Re: US blocks all offshore wind construction, says reason is classified

#206

Earlier quoted context omitted.

US deploys nuclear energy at over $10/watt meanwhile solar and wind are deployed around $2/watt (for levelized cost of electricity) including battery storage which means they are deployed for roughly the same cost as natural gas (so, direct competitors). Don't let comments like this fool you, nuclear is far from being competitive with natural gas. Even in countries like south korea that can deploy nuclear the cheapes…

Nuclear is insane levels of expensive likely due to overregulation. It is important for base load power and overnight power and should always be the backing of the grid frequency. Total loss of grid frequency is much more difficult to recover from with synthetic inertia. A healthy grid should have all of the following - Nuclear base load that keeps the grid stable and pick up from low solar - Gas plants for surge pow…

Nuclear is insane levels of expensive likely due to overregulation.

It's not just a matter of "overregulation". ALARA, aka As Expensive As Reasonably Achievable is an explicit goal of nuclear regulation.

Re: US blocks all offshore wind construction, says reason is classified

#207
post #174

Earlier quoted context omitted.

there are at least two reasons trump is pushing for oil: 1) the US has lots of oil reserves, which would lose lots of value if everybody was using renewables 2) oil is the main driver for dollar demand, as oil is paid in dollar, allowing the US to have lots of debt relatively cheaply That's also the reason why he wants to tell Europe to stop using renewables, and that's the reason why he is threatening Venezuela - be…

> That's also the reason why he wants to tell Europe to stop using renewables, and that's the reason why he is threatening Venezuela - because they have the biggest oil reserve and started selling them not in USD. What's interesting is that the strategy you suggest (tell Europe to stop using renewables, attack nations that compete with US oil sales) only motivates other nations to move away from oil. It's a terrible…

it could very well be that it backfires. I guess time will tell. A lot of his actions seem to be trimmed into this direction, and it's not a new one. He left the paris climate agreement quite a while back as far as I remember. blocking offshore wind construction just fits this agenda, as supporting companies to manufacture these windmills would just make everything cheaper (more demand, rising production capacity etc.) and demonstrate actual use of it.

At least that's how I see this.

Re: US blocks all offshore wind construction, says reason is classified

#208

Earlier quoted context omitted.

> nuclear is not renewable It can be effectively renewable for all practical purposes, but there's an aversion to breeder reactors. Over 95% of the existing 'waste' could also be consumed by breeders.

> It can be effectively renewable for all practical purposes, but there's an aversion to breeder reactors. Breeder reactors reduce long-term waste issues, but they don't make nuclear renewable.

They push the timeline out so far that it's effectively renewable. The sun will burn out at some point, too, but we don't say solar is non-renewable.

Re: US blocks all offshore wind construction, says reason is classified

#209
post #145

Earlier quoted context omitted.

The UK has tons of wind power but prices there are exceptionally high. Offshore wind isn't as cost effective as solar, it's the poster boy for high-cost, low-value renewable energy

UK energy prices are set by the most expensive energy source in the mix that contributes to the National Grid, which happens to be gas.

Which also sets broken incentives where nobody (not even renewables) are actually incentivized to dethrone gas/etc as it would reduce their own profit margin.

Re: US blocks all offshore wind construction, says reason is classified

#210

Earlier quoted context omitted.

US deploys nuclear energy at over $10/watt meanwhile solar and wind are deployed around $2/watt (for levelized cost of electricity) including battery storage which means they are deployed for roughly the same cost as natural gas (so, direct competitors). Don't let comments like this fool you, nuclear is far from being competitive with natural gas. Even in countries like south korea that can deploy nuclear the cheapes…

Nuclear is insane levels of expensive likely due to overregulation. It is important for base load power and overnight power and should always be the backing of the grid frequency. Total loss of grid frequency is much more difficult to recover from with synthetic inertia. A healthy grid should have all of the following - Nuclear base load that keeps the grid stable and pick up from low solar - Gas plants for surge pow…

Or maybe it's expensive because it doesn't scale. The per-unit cost of nuclear power plants is extremely high, making it hard to get economies of scale in building more of them. And if we /do/ hit economies of scale, uranium availability is likely to become a problem...
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