Shadowing Practice: How Pumped Storage Power Plants Work (Hydropower) - Learn English Speaking with Video

So in this lesson, we're going to have a look at a special type of hydropower plant known as a pump storage power plant.

We've already looked at how various types of hydropower plant work, and this type is not much different from some of the others we've seen.

However, it's got quite a unique operating characteristic, which I'm going to discuss with you in a moment.

So we can see we've got our water inlet, and that is on the opposite side of this reservoir wall.

I'll spin around so we can actually go down and have a look at the inlet.

There is the inlet.

We can see we've also got a gate so we can close off the water inlet to the penstock.

We've then got our penstock which comes down, comes all the way down the hill.

This is actually quite a large head of pressure or a large head to have with this type of power plant.

Now having a large to medium head is a characteristic of a pump storage power plant.

What's unusual here is that the penstock is split into two and feeds two separate turbines.

Remember, you don't normally see that on power plants where you have a medium to large head.

Normally, one penstock will supply one turbine.

Now, I'm gonna go and have a look at the turbines and generators from the outside, because I did actually try and look earlier from inside and it's quite cramped.

We can see that we've got a turbine runner which is housed within this casing, and the water itself comes from the penstock.

You can see it coming in here.

It's fed to the turbine runner, And then it's discharged and it will go out through the draft tube and into the river.

See if we can find the draft tube.

And this is it here, and on the opposite side, we also have another draft tube.

So this is very similar in a way to some of the other hydro plants that we looked at.

It's just that the head is much larger.

If we've got a larger head, then that means we can have either a Pelton type turbine

or a Francis type turbine we're not going to have a Kaplan type turbine because the head is simply too large.

Pump storage power plants though only utilize a Francis type turbine.

They do not use Pelton type turbines or Kaplan.

And there's a very simple reason for this.

Francis type turbines can be used to pump water back up the mountain.

That means we can generate electricity when water flows down the mountain

and then we can pump the water back up again to the upper reservoir in order to refill the upper reservoir.

But why would we do this?

Why would we pump water back up and then let water back down again later?

Well a pump storage hydropower plant is very similar to a battery, except we're not storing chemical energy.

We're actually storing the potential energy of the water at a higher elevation.

Let's imagine for a moment that it's a very sunny, windy day.

And that means that we're generating a lot of electricity from wind turbines and solar power.

This also means that electricity is cheap.

It's in abundance.

So imagine we're paying one cent per kilowatt hour just to keep things simple.

Now it might be that the people operating this pump storage plant think

that one cent per kilowatt hour is very cheap

and they'll buy the electricity in order that they can power the Francis turbines and pump the water from the lower reservoir,

in this case a river, up to the upper reservoir.

And they'll do this all day because it's been sunny all day and there's also been a lot of wind, so we've got a lot of cheap electricity.

When the upper reservoir's full, and this may take eight to 10 hours,

maybe more, maybe less, we'll hold on to all of this stored potential energy.

And what we'll do, we'll wait until it's dark And all of a sudden, all of that abundant electrical supply that was provided by the sun from solar power,

and maybe the wind dies down as well, all of that abundant electrical power will disappear.

It'll no longer be available in the national grid.

If you like this video and would like to see more engineering related tutorials, then check out some of the links in the video description area.

And if you click on these links, you'll get a special discount price for all of our engineering video courses.

If you wanna support the channel, then please do like this video or share it on social media.

Really does help us out.

You can also leave a comment in the comment section.

And if you've got any questions, then please just ask, and I will try to respond to you within 48 hours.

Thanks very much for your time.

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Why practice speaking with this video?

This video on how pumped storage power plants operate provides an engaging context for English learners to practice speaking. By discussing a specialized topic like hydropower, it introduces technical vocabulary and concepts that can enhance your English communication skills in scientific discussions. As you practice your speaking using this video, you'll not only improve your vocabulary but also develop your ability to explain complex subjects clearly and concisely. Furthermore, this lesson encourages learners to shadow speak alongside the speaker, which is an effective method to enhance fluency and confidence in English. Engaging with the material in this way allows learners to mimic sentence structures and intonation, making it easier to improve English pronunciation over time.

Grammar & Expressions in Context

In the transcript, several key grammatical structures and expressions stand out:

Present Continuous Tense: The speaker uses it to describe ongoing activities, as seen in phrases like "we're going to have a look" and "we’re generating a lot of electricity." This tense is vital for expressing actions happening in the moment, making it a great addition to your speaking toolkit.
Modals for Future Plans: The use of modals, such as "we can" and "we'll wait," indicates possibility and future intentions. Understanding modals will help learners articulate plans and possibilities more effectively in their speech.
Transition Words: The video employs words like "however," "but," and "for example." These connectors improve the flow of speech and help to structure arguments clearly, which is crucial for effective communication.

Common Pronunciation Traps

When mimicking the speaker, pay attention to certain tricky words and pronunciation patterns:

Pumped Storage: This phrase may be difficult because of the enunciation of "pumped" and "storage." Practice saying it slowly, then gradually increase your speed while maintaining clarity.
Turbine: The word "turbine" can be challenging due to its vowel sounds. To master it, try breaking it down into syllables: “tur-bine.” Repeat it using shadow speech techniques until it feels natural.
Electricity: The emphasis placed on different syllables can vary in native speakers, leading to confusion. Practice varying your intonation to sound more natural. Listening closely while shadowing can greatly help with this.

By focusing on these aspects during your practice, you're more likely to succeed in your journey to improve English pronunciation and fluency. Remember, learning is a process, and utilizing techniques like shadowspeak ensures that you engage deeply with the language.

Bu videodaki dil bilgisi

Konuşmacının en çok kullandığı yapılar, videodaki sözcüklerin aynısıyla:

Yapı	Videoda
Koşul cümleleri if + cümle, will/would + fiil — bir koşul ve sonucu	If you like this video and would like · if you click on these links, you'll get
Edilgen yapı be + fiilin üçüncü hâli — kimin yaptığı değil, ne olduğu önemli	is split · is housed · was provided

Gölgeleme Tekniği Nedir?

Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.

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Why practice speaking with this video?

Grammar & Expressions in Context

Common Pronunciation Traps

Bu videodaki dil bilgisi

Gölgeleme Tekniği Nedir?