Find a partner who gives energy to you, and who you give energy to. Not always easy to find, but if you do, then its easier to work on stuff like this.
I assume you mean business partner and not romantic partner. My romantic partner gives me great energy but would be like "Why are you playing with that soldering iron and not with me?"
But yes, a good business partner (or two) is, for me anyway, a requirement to move something from idea to reality.
