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The coal mine that ate Hambacher forest

bbc.co.uk

121–130 of 133 posts

Re: The coal mine that ate Hambacher forest

#121

Earlier quoted context omitted.

> Solar apparently hasn't become viable after years of subsidization Whether that is true or not: How do you expect it to become viable when coal is subsidized? > And the problem of storing energy is still not solved. Source?

Isn't it common knowledge that the energy storage problem still isn't solved. What solution do you think exists?

For one, "isn't it common knowledge" does not strike me as a particularly well-informed position.

"The energy storage problem" really never was an energy storage problem. It is a political problem of paying for it, because everyone calculates the costs of building storage systems and pretends that the future costs of continuing the burning of fossil fuels are zero, and then decides to go the "cheaper route" that simply has future generations pay for everything, and potentially orders of magnitude more than building storage systems now would cost.

As for technological solutions that do exist, the most important thing is that there is not the solution. If your topology allows for it, pumped hydroelectric is great. If you are the Netherlands, maybe not. Or rather, it's still useful for peak loads, but not for any kind of long-term storage. Batteries have become cheaper and are great for really fast reaction times to be able to deal with fast fluctuations in production, plus they are very efficient, so they are great for daily cycling. Also, just controlling demand better ("smart grid") can solve part of the actual problem (imbalance between demand and production), so you don't actually need as much storage. Or rather, you can even use the demand side for storage: You can, for example, cool down warehouses a degree or two more when you have excess energy in the grid, thus reducing demand later. For long-term storage, Power to gas seems promising: It's pretty inefficient, but it can achieve a high energy density, and efficiency doesn't matter that much for the exceptional case of extremely low renewable production over a large area. Plus, chances are the efficiency can be increased.

Ths point is: There is no silver bullet, but lots of solutions that can be combined to achieve a stable electricity supply from renewable energy sources.

Re: The coal mine that ate Hambacher forest

#123
post #4
post #2

The scale of the scars on the earth here is pretty staggering: https://www.google.co.uk/maps/place/Hambach+Forest/@50.89999...

Impressive, aren't they? The industrial muscle keeping people warm and happy. I assume Germany has a modern program of mine rehabilitation, so you're only able to see the parts that are currently part of the active mine. The historic mine footprint of an old mine is probably twice or thrice what is visible; much larger but invisible from satellite because it has been rehabilitated. Eg, the area just north-west of Tag…

Sure, could always be worse. But coal is probably the worst form of gathering energy.

The only benefit is the quick ramp-up enabling them to jump in to gaps where e.g. atomic power ramps up to meet demand.

Re: The coal mine that ate Hambacher forest

#124

Earlier quoted context omitted.

> Cutting subsidies to coal and/or increasing subsidies to solar just raises the cost of energy for end users Source? And does that include the future costs of the environmental impact for the end users that will still be alive by then? > Germans already paying a ridiculous amount of money per kilowatt hour What exactly is ridiculous about a price that reflects the actual costs? > (in fact, we are the first world cou…

> Source? "Source" is not a magic incantation that invalidates a statement. When subsidies change, price goes up, we have seen that repeatedly happening in the German electricity market, most prominently with the EEG. > environmental impact for the end users that will still be alive by then? You try to derail my point by underhandedly claiming I want more coal, which is false. I am pro-nuclear until we get fusion (al…

> "Source" is not a magic incantation that invalidates a statement.

That is correct. The statement is already insufficiently justified all by itself. "Source?" simply points out this pre-existing problem.

> When subsidies change, price goes up, we have seen that repeatedly happening in the German electricity market, most prominently with the EEG.

So, if we were to completely subsidize electricity for all citizens ... the price paid by citizens would go up? And that is because when we forced utilities to buy certain forms of energy at a fixed price, they passed that cost on to the customer? Are you really sure that that is your argument?

> You try to derail my point by underhandedly claiming I want more coal, which is false. I am pro-nuclear until we get fusion (also technically a nuclear technology) working.

You seemed to object to cutting subsidies for coal. But well, I guess your plan then is to increase the share of nuclear energy by continuing the subsidy for coal!?

> "But the costs are hidden, deconstruction will have to be paid by the taxpayer". Maybe - but when we were nuclear and before we installed bird-shredding and insect-killing wind farms, before we made everyone pay for large amounts of money to gift to rich homeowners to put solar on their roofs, electricity was considerably cheaper.

Erm, what? So, maybe the costs are hidden and will be paid via taxes ... but the prices that didn't include those costs were considerably cheaper? And that is supposed to be an argument for what exactly? That we should pay rich homeowners with taxes rather than increased energy prices?

And shredding birds somehow also magically kills the insects that those birds don't get to eat? Or what is that argument about?

> The actual cost of power generation apparently can be a lot lower, because the hypercapitalist US pays about a third of our price.

So, how much of the long-term costs of electricity generation in the US are included in the retail price? We don't want to be comparing apples to oranges, do we?

> Also, if you need to prop up an energy source with money, obviously it is not cost-effective.

How does that follow?

> I pay about 46 Eurocents per kilowatt hour, or around 52 US-Cents, with EnBW (900 kw/h per year[1], fixed costs factored in). Arguably, I could lower that to about 42 Eurocents per kilowatt hour if I change to Yello, who are famous for buying large amounts of nuclear electricity. Which, btw, is about to end here. With my low consumption, savings of about 36 Euros are just not worth it.

Well, that's certainly not representative. I pay ~ 0.27 EUR/kWh effective, though at ~ 3000 kWh per year, which makes a big difference for the effective price--and as such, I doubt you can reasonably compare your 0.50 USD to some average 0.12 USD in the US.

> So here I am - a single who moved to a small flat, all the lights are LEDs (which are considerably more expensive than the old ones)

Wut?

If we assume your typical "60 W" LED lamp lasts 10000 hours, that's 3 EUR for the lamp (if you buy reasonable quality somewhat cheaply) plus (assuming 6 W) 60 kWh of electricity, which at 0,46 EUR/kWh costs 27.60 EUR, so a total of 29.60 EUR.

The same amount of light from incandescent lamps is 10 60 W bulbs at ~ 0,40 EUR each, plus 600 kWh of electricity, that would be 276 EUR, so a total of 280 EUR.

What kind of LED lamps do you buy where LED lamps are "considerably more expensive"?! Even if we assume cheaper electricity, or terrible lamps that blow out after 1000 h, or that the incandescent bulbs were for free ... how do you manage to make LED lamps more expensive?!

> I won't be painted as some kind of environmental monster or a right-winger because I do not support risking the social cohesion of our society to provide for some people's green renewable fantasies.

I don't care whether you are a right-winger, your suggestion amounted to implementing right-wing policies.

As for whether those "fantasies" are bad policy or not, your arguments so far have not been particularly convincing.

> So, what exactly is right-wing in not making the price of electricity rise to appease some crypto-right-wing Greens?

The unjustified assumption that this is about appeasing anyone, and not about finding the best solution for an actual problem.

Re: The coal mine that ate Hambacher forest

#125

Earlier quoted context omitted.

> Source? "Source" is not a magic incantation that invalidates a statement. When subsidies change, price goes up, we have seen that repeatedly happening in the German electricity market, most prominently with the EEG. > environmental impact for the end users that will still be alive by then? You try to derail my point by underhandedly claiming I want more coal, which is false. I am pro-nuclear until we get fusion (al…

> "Source" is not a magic incantation that invalidates a statement. That is correct. The statement is already insufficiently justified all by itself. "Source?" simply points out this pre-existing problem. > When subsidies change, price goes up, we have seen that repeatedly happening in the German electricity market, most prominently with the EEG. So, if we were to completely subsidize electricity for all citizens ...…

The rest of your post does not warrant a response, but the insect thing may be something you are not yet aware of, so ...

Dr. Franz Trieb of the DLR institute of technical thermodynamics has found some interesting correlations about the decline of insect populations and the creation of windparks, and considers them a major factor (next to pesticides) in what we call the "insect apocalypse":

"Fluginsekten - Studie zu Wechselwirkungen von Fluginsekten und Windparks" https://www.dlr.de/tt/desktopdefault.aspx/tabid-2885/4422_re...

Re: The coal mine that ate Hambacher forest

#126
post #120

Earlier quoted context omitted.

Sorry I don't understand your criticism. Is it not allowed to discuss capitalism or socialism, it is automatically an "ideological battle"? That doesn't make sense imo.

It's not allowed to foment generic ideological tangents with indignant rhetoric. "Socialism starved a couple million people" is a classic example. All of that has been repeated countless times. It is predictable, therefore it does not gratify curiosity, therefore it's not what HN is for, and that means it's off topic. If you have something genuinely new to say, that might be ok—but then an internet forum is not a goo…

It seems to be news for the person blaming capitalism for the woes of the world, though. So discussion is not welcome? Why can't people just ignore threads they are not interested in?

Afaik a lot of stories repeat on HN, so the "newsworthiness" criterion seems a bit arbitrary. Also, shouldn't it make a difference if it is a top level thread? I wouldn't submit a story about "socialism starving millions of people".

I know, your "new" policies have been in place for a while, but I think you really kind of destroyed Hacker News. I don't understand why you worry about curbing discussions in deeply nested threads, as they would be easy to ignore by people who don't care. I don't think you worry about SEO or anything like that, so really, what is your incentive?

Also, there are lots of "boring" and repetitive threads on HN (like on global warming), I think you may actually single out "capitalism vs socialism" for ideological reasons. I don't believe you that nobody is curious about capitalism vs socialism anymore. On the contrary, the "battle" is more relevant than ever, with socialist having a real shot at the US elections. It is a question that affects most of us a lot more than most topics would.

Re: The coal mine that ate Hambacher forest

#127

Earlier quoted context omitted.

> You already can't use the land for plants/nature You can put plants on rooftops, we just don't.

You ever see those projects where they generate biofuel from algae growing ontop / against building using special build tanks? Its really cool.

Cool, but also energy efficient?

Re: The coal mine that ate Hambacher forest

#128

Earlier quoted context omitted.

I'm not the one claiming there is an easy solution. I think Bill Gates also said the people claiming there is an easy solution is the biggest problem with fighting climate change, so maybe read his essays on the topic.

But you claimed that protesters demanding a solution were a problem, or that they were unjustified because they couldn't offer a solution. Why would people have to present a solution in order to demand for their future to not be destroyed? After all, "solving climate change" is technologically a solved problem. Humanity has all the technological knowledge to switch to carbon-free energy production. The problem are th…

No I said the protestors claiming there is an easy solution is the problem. They believe everything could just be switched over to renewables at no cost, in fact, they think it would be cheaper to do so.

You do the same. You claim it is "technically a solved problem". It really isn't. You are just naive about "renewable energy".

Re: The coal mine that ate Hambacher forest

#129

Earlier quoted context omitted.

You ever see those projects where they generate biofuel from algae growing ontop / against building using special build tanks? Its really cool.

Cool, but also energy efficient?

It certainly beats bare roofs. AFAIK photosynthesis is still more efficient than photovoltaic, too. In any case, it's easier to store biofuel than electricity.

Re: The coal mine that ate Hambacher forest

#130

Earlier quoted context omitted.

But you claimed that protesters demanding a solution were a problem, or that they were unjustified because they couldn't offer a solution. Why would people have to present a solution in order to demand for their future to not be destroyed? After all, "solving climate change" is technologically a solved problem. Humanity has all the technological knowledge to switch to carbon-free energy production. The problem are th…

No I said the protestors claiming there is an easy solution is the problem. They believe everything could just be switched over to renewables at no cost, in fact, they think it would be cheaper to do so. You do the same. You claim it is "technically a solved problem". It really isn't. You are just naive about "renewable energy".

> No I said the protestors claiming there is an easy solution is the problem.

Source?

> They believe everything could just be switched over to renewables at no cost,

Source?

> in fact, they think it would be cheaper to do so.

So, how do you know that is not the case? (And no, pretending that climate change won't cause any costs is not how this works. If your stance is that climate change won't have any costs, that's on you to demonstrate.)

> You do the same. You claim it is "technically a solved problem". It really isn't.

So, which part of it is not technically solved?

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