The Engineering Challenges of Renewable Energy: Crash Course Engineering #30

I thought solar power was cheap??

She looks like black indian zlatan ibrahimovic 😂

Awesome video thanks Crash Course I have solar panels on the top of my home! :)

What is the full extent of the environmental cost of making solar panels? How long do you have to use solar panels before they produced more energy than they used, on average?

Hydroelectric Energy is also solar energy, how? water moves because of the sun,  just like the moon effects the tides and waves. Why do we have to get ride of Dam if they are 1. the most efficient  way to generate power and 2. They use solar energy? Besides climate change is not really from polluting the air. climate change is caused from the change in periods. If you look back in history over and over again there are hot and cold periods. climate change is just a way to get people to believe that most renewable energy are bad and they cause damage to our atmosphere. What is the point of getting ride of the most efficient way to generate power, other than climate change?

Imagine being dismissive of nuclear power when it’s the most effective form of non renewable energy, and we have plenty of uranium and thorium reserves to last us for a while

Out dated video, it seems made 20 year ago. No current data on PV Cells, really far away from reality.

The project like this step by step is described on the Avasva website and many more plans you can find on that website.

Where I grew up we had the potential to produce all 4 forms of renewable energy. There was allot of open space and many days of cloudless skies for solar. There were almost always breezes and often wind especially on the local volcano. That's right a local dormant volcano which meant we had access to geothermal in fact our water needed to be placed in water towers to cool. Finally we had mountain streams rivers and damns which could have been used for hydro-electric power. Sadly the project to place wind turbines on our local volcano was sabotaged presumably since the local power producer would potentially lose control of controlling power generation and or its profits from it would drop since it wouldn't be able to keep prices higher. I believe that is why none of the other potential sources were pursued.
We did get a coal fire plant but its electricity all went to California mostly LA hundreds of miles away. On the bright side the coal produced nearby and used in the plant is some of the cleanest coal anywhere.

LIES! as Lazard 2018 study shows, levelized cost of PV utility scale farm is lower than natural gas power generation(cheapest fossil fuel)

Everything has its challenges, it is normal. Whenever you hear green energy isn't feasible don't believe it because it is a lie.

When you burn hydrogen, you create water vapor, or H2O (g), which is actually a far worse greenhouse gas than CO2 and has contributed much more to the Earth's warming than CO2 ever will...how do we solve this problem?

The thing about wind and solar is that they tend to compliment each other. If it's cloudy then it's probably also windy and clear skies might not have a lot of wind. You can also off set the issues with good meteorological knowledge, if you know the weather patterns of an area you can use that to compensate. Oceans for example usually have strong winds making them excellent for wind farms and this is how Denmark generates almost half of it's yearly energy usage with wind power alone. And it also turns out that you can supply peak demands with wind and solar since the amount of wind blowing changes throughout the day just like sun exposure. Again by choosing your location cleverly you can exploit natural differences.

I'm halfway through the video and just keep thinking.. batteries batteries batteries

A dwarf star will come in handy

I hate her voice

Renewable Energy creates more pollution and harm to environment than fossil fuels and nuclear. Solar is expensive clearing land and killing animals and reptiles. Solar is unreliable and not sustainable, so people will burn wood and coal in each individual home to compensate for what solar lacks. What will be done with spent solar paneling ? What is used in the process of the panels ? The renewable energy will kill off more land, trees, animals, and create more pollution. Fact.

Is it possible to get electricity by using mass & kinetic energy?