在手机上保存，获得更好体验
本字幕由TME AI技术生成
Have you ever thought about how much energy we used
Whether it's watching cat videos on our phones
Buying a burger from a takeaway or going somewhere in the car
Pretty much everything we do involves energy
But what does it all come from
Well i've been checking this out for most of human history
Our energy use has been pretty low
But over the last hundred years
Also it's
It's skrocted quite literally at the moment
Most of the energy we use come from things like gas
Oil and coal
They're often called fossil fuels
Because they come from the remains a prehistoric plants and animals
These remains contain carbon
Which when we bring it up from underground
Can be burn to make energy and fuel imagine that we're using dead dinosaurs to move all our stuff found and generate electricity crazy
But burning fossil fuels also sends harmful gases into the atmosphere
Causing our climate to change
Luckily though there's another type of energy called green energy or renewable energy
It creates electuse to using winter band and solar panels
Which use the heat of the sun plus
There's also hydo power created by the flow of water in rivers and oceans
The good thing is these swarms of energy aren't is harmful for the environment
But that doesn't mean there a't some some chenenges for amamwhat happenenwhen when wind isn't blowing
And what if theno no sunshine like at night time
Well let's talk to expert one of the u ky's green energy pioneers
Dail winins
Hi dale
So can you solve some of these problems for us
A winter binds
Any good when the wind isn't blowing
But it's a good question and a funny one
Because obviously wdmills ls i'i'd vererticle m don't go around
When there's no wind
But it's not such a big problem
That doesn't very often when
When it does we big big cabconconnecting the countries of europe
And we can take electricity from somewhere
Where it is windy
And give it back
When we have the wind
And they don't
And what about all the steel and winter tabines doesn't that have to be made with fossil fuels
Another good question
Winter abuans are made from steel and concrete
Most things are today
But that's not the problem
That it might appear to be
Because if you look at the carbon cost of all of those materials
When you put up one wimmeal within six months
You've got that back through carbon savings
And for the next thirty years
You make a net saving of carbon and steel is beginning to be made without fossil fuels as well
But what about solar panels
When there's no sun light
Of course
Solar panels don't work
When there's no sun at night time
But that's not such a big problem
People on their homes today are putting in batteraries and solar panels
So that when they make enererdoing the day
That they don't need
They can keep it and use it at night
So which country is doing the best with renewable energy
But i'm be looking into this
And i see if you can guess from these ball
Which one it is
Is it the uk
The usa
Norway or india
Well the answer is no way nearly all of its electricity comes from hydropower created by water are flowing down steep
Values from as high mountains
And guess what they're supporting some of their hydropower to the uk
Using giant wires across the north sea 好的好的
So deal could we be doing more in the uk
To make sure that we don't use fossil fuels
Absolutely there's two things we could do here one is to use less energy
We can probably save twenty to twenty five percent at home by turning things off turtwenty things down like thermosttes and meanwhile we've got fifty percent green electtricity on the grid
We could get to one hundred percent in the ten years
And we have enough wind and sun to power the whole country to hear our times
And
And what about innovations for the future
So we have a new way to make electtures s eat something goled a titilelegon using underwater propellous driving generators that looks really exciting
But up until now we've only been talking about elecctoricity
We also use a lot of fossil fuel gas to heat our homes and run businesses
We find a new way to make back gas from grgrass
And we have enough grass in the country to make all of the gas that we need
So that we can free ourselves from fossil gas
Completely thank you
Deal uh that was my plaser thank you
So it seems like green energy really is the way forward
If we want to protect our planet
And before too long the fossil fuels that we rely on the moment
Will become a thing of the past
Just like dinosaurs
