It's already cheaper to demolish an existing coal plant that's already paid for and replace it with solar + battery. Solar and battery brand new buildout, plus their maintenance overhead, dominates coal even when you only count coal's maintenance cost.
People have it in their heads that this is some bleeding heart, don't ruin the planet thing, but it's plain economics. Non-renewable energy is simply inferior, and will only become more so.
> Non-renewable energy is simply inferior, and will only become more so.
you simply can't say this. despite the lobby against it, solar and wind energy have lifespans of around 20 years and afterwards, it's a freaking mess to deal with recycling and often times, garbage we don't know what to do. not even counting the amount of NASTY chemicals going into the production of solar panels. these are sometimes permanent and will have a great long term impact on ecology if we just start destroying plants to substitute with "green" alternatives mindlessly
one can also make a point that despite wind generators metals and batteries being almost to 100% recyclable, it's heck expensive to do and we don't have infrastructure. a comparison cosidering everything involved may show that hydroelectrics, nuclear, geo-thermal and heck even gas may have a similar or better impact depending on location
Its fair to do an accounting of externalities. However, I generally find those raising externality issues with solar and wind wildly overestimate their impact and wildly underestimate the externalities of fossil fuels. You mention the 20 year lifespan, this is a huge benefit compared to fossil fuels. The externalities of oil and gas add up for every second they are used.
Sure, and none of that amounts to even close to the damage from stripping vast areas of the earth to dig up coal, grinding and transporting it to power plants, then setting it on fire, and releasing tons of CO2, and then disposing of tons of unburnt waste full of NASTY chemicals.
And having to do all that continuously, every day, for the life of the plant.
In every single solution you can point out problems. Complaining that "X isn't perfect" is the easiest and laziest thing in the world to do. Assessing the ACTUAL costs and damages IN PROPORTION is more difficult, but actually yields good results.
It can be viewed as stripping vast areas of the earth, to put them in the shadow of a solar farm. That utterly disrupts the ecosystem underneath, though in a different way. That's usually hand-waved away.
If you actually read any of the reports of current research, you would find that combining solar with agriculture improves both the health of the flock and/or crops being produced, and increases output. More shade for the fauna, and better moisture profile for the flora, for starters.
Similar effects can also be created in currently wild areas that does NOT disrupt the ecosystem, but augments it. For starters, in very dry areas which are ideal for solar deployment, the typical constraint on the ecosystem is lack of shade and moisture preservation, which is mitigated by solar deployment
There are also VAST areas of already populated or in-use areas that are ripe for deployment of solar panels, rooftops, parking areas, canals, reservoirs, and more, and ALL of them are a net improvement with solar panels
So, nobody is stripping anything from the earth, and there is no continuous transportation of materials to set them on fire. The fact that it is already CHEAPER to produce electricity by tearing down a coal plant and installing the same solar capacity shows how crazy it is.
Just because something was the best way we had to do something three technology generations ago does not mean it is still best, or even viable or recommended. Stunning to see such unscientific backwards attitudes on a site focused on science and technology.
> Complaining that "X isn't perfect" is the easiest and laziest thing in the world to do. Assessing the ACTUAL costs and damages IN PROPORTION is more difficult, but actually yields good results.
no one here typed that photovoltaics shouldn't be on play. but the way it's being paraphrase, feels like a panacea. the OP telling other skeptical opinions against mass substitution to photovoltaics is 'a shame on a tech oriented forum' probably don't even know that regulations and deals of these ballparks have a bunch of regulamentations and considerations that even needs to look for the security/reliability of the grid agaisnt (cyber)terrorism and war...
they then bring a cute little article of people producing tomatoes under laboratory settings being shaded by solar panels. we are chatting about mass production and distribution of energy. if you think it's economically viable to dismantle coal stations and substitute them for solar only shows ignorancy from a multitude of fields... as if energy was easy as comparing output of CO2/$ per watt produced! they even were ironic agaisnt (underdeveloped yet more sane than photovoltaics in the long-term for a vast majority of cases) nuclear technology :D we may shall dismiss the discussion of hooking up batteries on wind/solar, as current prices don't make recycling (batteries) any sense in a large scale that will be decentralized due the geo-location of wind/solar requirements. or do you think transporting these batteries to be recycled in specific areas is just a matter of building cargo-drones powered by solar energy and AI vision? we may also dismiss ecology on the amount of area and damaged species by exchanging any power plant to wind/solar because it's cheap. even group of populations agaisnt visual pollution coming from wind turbines, for example. we also should dismiss the amount of thrash burried by thousands and thousands of multi kilo tons wind turbines after 25 years etc. /s
Nice, a lovely screed using exactly the same Fear, Uncertainty, and Doubt techniques used by tobacco companies to promote cigarettes for decades after they were proven to be the source of mass fatal diseases costing people and society, and again reused by the fossil energy companies.
Every single claim above is at best massively outdated and/or outright wrong and disproved (and no, I won't go do your research for you and find cites for everything).
So, start from the bottom:
>> thrash burried .. multi kilo tons wind turbines
not sure if you mean buried or burned, but wind turbines are already being recycled and reused in bulk, and that is ramping up (and also offtopic from solar)
>> visual pollution coming from wind turbines
Again offtopic, and also purely a matter of taste; it doesn't affect anything
>> transporting these batteries to be recycled in specific areas is just a matter of building cargo-drones powered by solar energy and AI vision
Nice strawman argument from something I never said, and no, there are plenty of other perfectly good transport methods. And yes, recycling batteries is already becoming good business and a great feedstock for 'mining' the materials, and no it does not need to be a big deal, and siting the 'mining' facilities for recycling/recovery is vastly more flexible than siting mining for coal which is obviously necessary wherever the coal happened to form 100 million years ago.
>> they even were ironic agaisnt nuclear technology
Again, a strawman argument, as I never said I was against nuclear tech, and I am in fact for the new forms of nuclear tech, particularly the smaller even portable reactors ('tho the promise of Thorium reactors seems to have faded, but I'm not sure why).
>> if you think it's economically viable to dismantle coal stations and substitute them for solar
Again, only citing multiple studies showing that, and again, you entirely miss the point, which is not that you'd necessarily do it in every case, but that the point of coal being even the economical option has long passed, nevermind the environmental catastrophe it creates.
>> cute little article of people producing tomatoes under laboratory settings
tomatoes aren't the only thing being produced in conjunction with solar panels, and there are so many projects and studies showing its effectiveness in both improving results for farmers and improving their financial stability that it has a name: "agrivoltaics". Instead of spending your energy scoffing at things you obviously know nothing about, perhaps go read up on it and learn something.
>> security/reliability of the grid agaisnt (cyber)terrorism and war
If you want security and reliability, the best thing is widely dispersed power generation as close as possible to the use location. I have advocated for decades that a DOD project like the US Interstate Highway System should be done to ensure every household had a minimum amount of solar self-generation capacity, and stockpile transformers which have a manufacturing lead time of years. A nationwide grid outage without this is a potentially civilization-collapsing event, whereas if every household had some baseline capacity, they can still refrigerate food and communicate. Obviously just a cutout example, but the principle of diversity of power sources and locations makes a more robust system. Only bad grid planning makes solar or wind anything other than an improvement in grid reliability.
Moreover, battery tech is now sufficiently cheap that even the net cost of installing solar+batteries is lower than fossil plants, and that combination has better stability and millisecond-response rates that massively stabilize the grid (vs. ramp-up times measured in minutes-hours for gas plants and days for coal/nuclear).
>>a shame on a tech oriented forum
It is not the discussion of other options, but the disproportionate dismissal and spurious arguments that is a shame here. I'm sure there might be some exceptional situation where a new coal plant might actually be better all things considered, and if you have an actual example to discuss then bring some fats, but overall, that ship has sailed.
with agrivoataiagain, there are hundreds of article
> not sure if you mean buried or burned, but wind turbines are already being recycled and reused in bulk, and that is ramping up (and also offtopic from solar)
it seems i'm an outdated dreamer here or do you think "two million metric tons of wind turbine blades will reach the end of their operational lifetime in the United States by 2050" is a low-number? something being recyclable doesn't mean it will be, not that's economical feasible to do it. that's like saying we should produce PET plastic mindlessly just because we can recycle it 100%. ¶ https://pubs.acs.org/doi/10.1021/acssusresmgt.4c00256
> Again offtopic, and also purely a matter of taste; it doesn't affect anything
> Nice strawman argument from something I never said, and no, there are plenty of other perfectly good transport methods. And yes, recycling batteries is already becoming good business and a great feedstock for 'mining' the materials, and no it does not need to be a big deal, and siting the 'mining' facilities for recycling/recovery is vastly more flexible than siting mining for coal which is obviously necessary wherever the coal happened to form 100 million years ago.
... please, just do a quick research on the amount of batteries that actually are recycled, not if they can be recycled. do you think building biometallurgical or pyrometallurgy/hydrometallurgy facilities is cheap and easy to build a bunch of them so we compass the decentralized nature of wind and solar generation? there's a high cost of transporting dead batteries, which requires fossil fuel and if done through roads, will contribute much more to their actual state of the worst offender of micro-plastic producers/polluters worldwide. i will just point some papers on the problem of recycling vehicle batteries (which is so small on scale compared to what we are discussing); https://www.mdpi.com/2313-0105/11/3/94 ¶ https://www.sciencedirect.com/science/article/pii/S092134492... ¶ https://www.sciencemagazinedigital.org/sciencemagazine/21_ma...
> Again, only citing multiple studies showing that, and again, you entirely miss the point, which is not that you'd necessarily do it in every case, but that the point of coal being even the economical option has long passed, nevermind the environmental catastrophe it creates.
> Instead of spending your energy scoffing at things you obviously know nothing about, perhaps go read up on it and learn something.
i remember once doing volunteer for a farm based on the system of a Swiss guy who came to Brazil to execute his hypothesis. really neat. a pioneer on "regenerative agriculture". but if i actually had to became his proletariat for the rest of my life and know i would retire with a low salary and the consequences of intensive physical labor those organic places required, i wouldn't think it's revolutionary. people on GMO farms have a greater prognosis. rural exodus is an ongoing social phenomena because a thing... with that said i was quite happy to know someone i worked with invested millions USD on solar technology on their farm. really neat move. but would much better a local generator for the whole region... but our global situation doesn't seem to care much about long-term solutions, that are expensive and slower to build. every average enthusiast seems more worried about short term gains and trusting "green technology news headlines" than actually evaluating everything with skepticism
i'm all for development and implementation of greener solutions. that's why i don't even have a driver license. i don't like coal (my country doesn't even use it) but i'm not a blind upper class north American that thinks buying high-tech photovoltaics or wind turbines is the panacea nor these don't leak lead on China or India
late edit: oh by the way, you also don't see to understand what are the key topics of cyber-security on energy... this is a great start: https://www.csis.org/podcasts/power-map
Who cares if we never figure out how to recycle them? bury them in a landfill, and we’ll still be so far ahead on the pollution front than any other alternative. This is such a non issue
i'm not defending coal. i'm just saying that solution to energy is much more broad than the OP seems to pass on "being cheaper to destroy a coal plant and substitute with batteries and solar". i wouldn't be surprised trey sightread titles and didn't realized that it may be economical to re-use an OLD coal plant to produce solar energy but well... my last comment on this thread has it all, great book
then you can move on and judge what't the panorama of closed/paywalled science found out there (Nature) that evaluates impacts of solar panel not even considering numbers of last batches of thrash from ~ 2010 (which still have 10-15 years till they start filling the world with chemicals like lead)... then may dive into electricity security and distribution and recycling technology to bring up a single ignorant phrase comment downsizing nuclear generation, despite it being safer and ecological on the long-term compared to photovoltaics in LOTS of places, for example
People have it in their heads that this is some bleeding heart, don't ruin the planet thing, but it's plain economics. Non-renewable energy is simply inferior, and will only become more so.