1105 Alternative Energy
Kat talks about how we might be using new kinds of energy in the future.
- Slide Show
- Audio Notes
Kat: My company is a wind energy company but there's a lot of other options.
Matthew: What are the other options and what are the pros and cons of each option?
Kat: Well let's start off with wind. Wind energy is great. It doesn't take away a lot of space. You can have one wind turbine in a very small area but on the other hand you really need some strong wind to have a good output. Then you have solar energy. Solar energy is great but you also need a very good location and solar exposure is normally just a couple of hours a day so you need a very big solar panel so it takes away a lot of space. Then we have the option of geothermal energy which is great but once again depends on where you live. Very few areas have what it takes to have a productive geothermal system and it's very expensive. There's a lot of drilling involved. Then another option is bio-energy which is where you actually take animal waste and use that to make energy. I think it's one of the better ones but once again the set up is highly expensive. Then a last option would be hydro-energy. Hydro-energy I think is best in very large set ups, government-run or run by large electricity companies. It's very expensive to set up but once it's set up, it's a very, very productive way of making energy.
I heard that you work at an renewable energy company.
Renewable energy comes from unlimited sources such as wind and sun. Notice the following:
- Renewable energy is one way to combat rising oil prices.
- The government is considering new sources of renewable energy.
What are the pros and cons of each option?
We use the term pros and cons to talk about the positive and negative sides of an issue. Notice the following:
- We discussed the pros and cons at the meeting.
- What are the pros and cons?
But on the other hand you really need some strong wind to have a good output.
The term 'on the other hand' is used to express contrast. Notice the following:
- It's nice, but on the other hand it's expensive.
- On one hand it's interesting, but on the other hand it's noisy, crowded and dirty.
We have the option of geothermal energy
To have an option means we have a choice. Notice the following:
- We have three options.
- We have three possible choices.
Once it's set up, it's a very, very productive way of making energy.
When we set something up, that means we organize a system to do what we want. Notice the following:
- He set up a business to service computers.
- We need to set up a system to save energy.