Yes, without the sun there would be no Aurora, amongst other things.
My best show was on Mount Washington in early November 2005. Veils and pillars covering the entire sky. Purple, pink and greens flickering on and off like a strobe light. It went on all night and I could see them out the basement window in the obs.
My first time was during that record breaking solar flare in October (2003 I think) where I could see some faint pillars in heavily light polluted coastal CT. This solar storm was so strong people in FL could see the Aurora.
My advice to you is to learn all that you can about the Northern Lights. You'll understand how they work and where/when you are most likely to see them. The next thing you know you will find yourself in the right place at the right time and you'll get an amazing show.