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  • You are watching ColdFusion TV.

  • Welcome to another Coldfusion video

  • In this video we're going to take a look of a state-of-the-art in Solar power energy generation

  • Specifically solar power plants this may seem like an odd idea

  • But it's really been picking up steam in the last two years or so. In this video we'll take a look

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  • This month China, just completed the world's largest floating solar power plant, and it's now operational

  • This is kind of strange because China was once seen as the World's largest polluter, but now maybe they're cleaning up their act.

  • The plants built by Chinese photovoltaic manufacturer Sun Grow floats in water two to ten meters deep

  • Interestingly this plant was built on an old coal mining site that has been filled with rainwater

  • Because of the mining activities the water there is otherwise mostly useless

  • The Advantages of such a plant is that no land needs to be cleared and the water also provides ambient cooling for the plants environment?

  • Reducing long-term damage from heat. The downside it's only 40 megawatts of power output.

  • For comparison Australia is building a 330 Megawatt land-based solar power plant and a

  • 650 Megawatt One is Being built in India

  • But if you want to take a look at the world's largest land-based solar power plant it all circles back to China

  • They have a whopping 1,500 megawatt solar power plant and for those of you wondering one Megawatt can Power Roughly 400 homes

  • So let's zoom out on our perspective here a little bit

  • How do the largest solar power plants compared to the largest nuclear power plants?

  • Here's a general table of all the nuclear power plants over 1,000 Megawatts

  • As We can see they range from about 1,000 megawatts all the way up to almost 7,000

  • So we can say solar power plants are about half the average here

  • So let's take a look at coal.

  • The average here is a little higher

  • Maybe three to four thousand Megawatts, so the solar plant output is a bit under half here

  • So this is very interesting a lot of people usually laugh or a very skeptical of solar power

  • But as we can see the largest solar power plant already has half or just under half the energy output of the average

  • large-scale coal or Nuclear Power station

  • What's more about all of this is that if you look at the years in which these solar power plants are commissioned?

  • It's all mostly been happening in the past two to three years. This is all very new stuff

  • So what this means is that at this point?

  • The technology is at its worst efficiency

  • And the most primitive it will ever be solar power plants are only going to get better from here on.

  • Alright, so this sounds all pretty good

  • But what about the energy storage how do you store the received energy from the sun to use at night?

  • Well, there's a couple of options. You should go down the battery road with the implementation of a new use for an old technology

  • specifically battery packs like Tesla's power packs

  • They of the utility scale battery packs that are used in California and also used to currently power entire Islands in Hawaii from Solar Power

  • With this method the off demand storage issue could be solved

  • For power plants that use solar thermal energy directly storing excess energy in Molten salt is also a solution

  • one of the more interesting methods i've heard of is a little experimental it involves storing energy within rock cavities such as mountains using pressure a

  • Friend of mine who I met at the St.

  • Gallen Symposium is doing this with his company, Alacaes I've already briefly mentioned him in my europe video

  • But we'll be doing a video together on this technology. It's pretty interesting stuff

  • This experimental method could be a future solution to the off-peak energy problem with power plants that are in suitable geographical locations

  • Another problem with solar is that obviously when it's smudged or cloudy you're hardly going to get any power from the sun?

  • for this reason solar power plants are probably going to be a

  • Complementary technology to take the strain of the main power grid until energy storage solutions get perfected

  • So I know as some of you would be thinking what about the pollution caused by the actual production of solar panels

  • well as it turns out the amount of environmental damage caused by the production

  • is totally dependent on who's creating the solar panels in the first place.

  • The environmental impact ranges from virtually nothing all the way to pretty devastating in places where environmental consideration isn't a priority

  • The main Risk comes from the chemicals used

  • Fabricating solar panels requires chemicals such as sodium hydroxide hydrofluoric acid and Carbon Tetrachloride

  • Which can all lead to dangerous waste byproducts?

  • according to studies done by Stanford and the us government most of the dangers from Solar panel

  • Manufacturing come from upstream in the supply chain this is where the raw materials are being treated

  • In other words. It's most dangerous for the actual workers which using the panels however if regulations are followed. It is a safe work environment

  • But the big question is that with China being one of the world's biggest solar panel?

  • Manufacturers are they following the proper workplace and environmental regulations?

  • In the past a Chinese firm was caught dumping toxic Solar panel waste into a river

  • While this was a few years ago and since then from the limited data received China is getting much cleaner in the production pipeline

  • It still raises some questions.

  • At this point it really is up to the integrity of the firms to make sure that they're doing the right thing

  • The safe recycling of old solar panels is also an emerging industry with Australia leading the way

  • So on this point if companies obey regulations and solar panel recycling becomes commonplace

  • We could have a future with true clean energy on a large scale without waste.

  • It sure, isn't the final destination and clean energy whether it's rapidly becoming a valid Stepstone

  • So why have these solar plants only been coming online in the past two to three years?

  • Well in a video that I did a while ago on solar I did mention that there was a rule similar to moore's law called

  • Swanson's Law

  • It's a rule of thumb about how quickly the price of panels will drop in relation to time the cost of Solar panels are dropping

  • Rapidly and will continue to do so so right now and in the future. It's enabling mass-scale Solar panel production

  • So there you have it, the strange world of solar power plants

  • What was once completely unfeasible due to cost is now becoming a silent trend in the utility energy generation marketplace?

  • What are your thoughts?

  • Do you think this is the right way to go and a valid step towards clean energy or do you have some reservations?

  • Against it let me know your thoughts in the comment section below if you like this video feel free to give it a thumbs up

  • and if you need to this channel feel free to subscribe

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  • Anyway, this has been the Gogo. You've been watching coldfusion. Thanks for watching and you again soon for the next video

  • Cheers guys have a good one

  • Cold Fusion, it's new thinking

You are watching ColdFusion TV.

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B1 中級

太陽光発電所|次なる大物? (Solar Power Plants | The Next Big Thing?)

  • 84 2
    Ntiana に公開 2021 年 01 月 14 日
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