Sustainability Measurement System - what's the first word that comes to mind?

Hi community! I'm doing product research for a sustainability focused company and need inspiration in naming the product. What's the first word that comes to mind when you hear Sustainability Measurement System?
Enabling you to go green, efficiency in water + energy + food.
I just realized you asked for a single word LOL. I guess green, and efficiency would be my answer.
appreciate the extras!
- Green- Preservation- Future