# Tag Info

Accepted

### Why does it take so long to restart a nuclear power plant?

When a reactor is shut down the core produces much less heat, but they do still produce heat through a mechanism known as decay heat. The fact that the core is producing less heat means that the ...
• 3,525

### What are the disadvantages of concentrated solar thermal power?

There are no silver bullets when it comes to decarbonising the grid. That's good news: it means you can stop looking for one, and accept that every form of generation has its pros and cons. ...
• 3,701

### Why does it take so long to restart a nuclear power plant?

Xenon is a result of the nuclear reaction and a neutron poison. If you don't wait for the xenon to decay, it eats up too many neutrons and you can't go critical. They always say "there are not ...
• 965

### What are the disadvantages of concentrated solar thermal power?

Everything we do as humans has consequences of some sort. Although not a huge downside (in my opinion), critics have often cited the plant's supposed adverse effects on wildlife: Wikipedia Article: ...
• 101

### What are the disadvantages of concentrated solar thermal power?

In the UK, the sun does not shine every day. We also need the most power in winter when the sun shines the least. Therefore every solar power station must be backed up by anther power station that ...
• 191

### Why does it take so long to restart a nuclear power plant?

The answer really boils down to two factors: safety and testing. I'm going to give a generic summary of these two things below, but the real answer is quite complicated. The crux of nuclear plant ...
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1 vote

### Why shouldn't we put high voltage cables physically underground?

When we had to run HV lines to a building, we put them in steel pipes 6 ft deep, covered the pipes with 2 feet of sand, then laid a foot of concrete on that and painted it red, and filled the trench ...
1 vote

### Why does it take so long to restart a nuclear power plant?

They are many reasons for the time it takes to startup or return to full power operation in commercial nuclear power plants. In the US there are two main types of plants, Boiling Water Reactors(BWRs) ...
1 vote