Where do I upload a WP theme to see how it works?

Im new to this site and looking to re-do my website. Can I upload the theme into my current WP account and play around with the editor to better understand the usability?
This is the theme I’m interested in http://preview.themeforest.net/item/energy-solar-and-alternative-energy-wordpress-theme/full_screen_preview/19153629?_ga=1.184930601.1636392634.1488865675

There’s no pre purchase installation option.

Some authors - not that many yet have temporary admin access on their demos but not that theme by henlooks of it and even then those environments are not the same as a dull install.

You can always ask the author any questions that you have using item comments and play around in the demo.

Just in case when you mention “wordpress account” - you have to have your own domain and hosting as wordpress.com does not allow third party themes