What are The UPSIDES of NON RENEWABLE energy sources, and what are the DOWNSIDES of RENEWABLE energy sources.

So i would be happy if you suggest me some topics in which i can do my project under renewable energy sources.

UK: I got a letter saying that my electric bill went up due to the raising cost of wholesale oil and gas. But I'm on a renewable energy tarrif. surely gas and oil are'nt renewable energy sources and should'nt affect my bill. I think I'm being lied to or something. screwed maybe?

What are some ways energy is waasted?
Whatypes of energy are popular in oyur native countr? (state your country)
What is the main problem with renewable energy sources?

I understand that at present if our economy were to suddenly adjust to a green economy, there would be a serious crisis. For one, renewable energy sources are not very reliable, and may need to be subsidized similar to how ethanol is subsidized. But with sufficient research and development, could the US economy remain strong or become even stronger runnng almost exclusively on renewable sources?

Why don’t we produce all of our energy using alternative renewable energy sources?

I believe that renewable energy sources is a better method, but it is more expensive. If you could also provide statistics/facts I would appreciate it!

I am writing an essay and I need the answer to this question I want to write about it but I want to know the reason why we need renewable energy sources so I can state it in my essay.

I use green mountain energy co. and they supply renewable energy sources that cut down on pollution, like windmills. Is this considered a tax deduction?
I live in Texas