My wife does energize me and helped me achieving many things. I can say with absolute confidence, that without her, I wouldn't be in the place I am today. Most likely would be a mess.
But this this "energize" is a total sum of all factors. As every couple, we have better and worse days. There's friction sometimes. She is NT and like every NT I know and knew, have trouble coping with her emotions sometimes. This can be draining.
Overall, I think I am more draining for her, though. My AS aside, I have significant problems with short term memory and lost a lot of memories from years 2017-2020. This is because I've been going around with undiagnosed temporal lobe epilepsy for 6 years and it was wreaking havoc in my brain. I'm on medication only since March of last year, but what's gone is gone and while I can improve regarding short term memory, I will never be okay. Neurodegeneration over the years is also a real prospect. I know that I am not an easy person to live with.
The only partner I had which was almost exclusively energising me, was a woman who had affair with me. I was 26 and single, she was 28 and married for two years back then. Not my proudest moment in life, but what I've felt to her was true. The issue is - we weren't living together and engaging in daily routine. Weren't dealing with problems like in normal relationships.
This is why it was always high - when we met we were either going out, having fun, or being at my place, having sex. It was impossible for her to be draining for me. The longest time we've spent together was 2 weeks straight, while her husband was on a "boys road trip".
In normal relationships, though, there are always moments where people feel drained by other person, even in happy NT+NT couples. The sum of it all is what matters. If in the end you find given person to be a positive force in your life and they feel the same about you, it is most likely all good. But if you are feeling constantly drained and miserable in relationship, that's a signal that, at best you both need to get to work on it, or at worst - part ways.