Kezia Dugdale departs from her local polling station after casting her vote

The video transcript covers a range of abstract concepts and ideas, starting with an introduction to the ballot box and moving on to a discussion about waves and mental exercises. It concludes with a brief mention of gas and an expression of enthusiasm.

What could 'There's gas' imply in the context of the text?

Why might someone say 'But that's awesome' in response to a situation?