I really like the idea of a National Energy/Resource museum, something that could be very unique and really cool (to me at least). The only thing I would change from the suggestion is the location.
While Nose Hill Park would be a unique setting, to me it is just too far out from most things. I say keep it central as possible. Ideally, I can see it on the large city owned parking lot at 4th Ave and 8th St SW:
https://www.google.ca/maps/@51.0500192,-114.0820066,305m/data=!3m1!1e3?hl=en
Make it large, and a unique architectural design, and I think this would be amazing.