Help creating a new energy source

[Zefras]

Hi! Im a complete noob (this is only my second modded character and the first one was extremely basic) 
A friend of mine had the idea of a character with an alternative energy source. Lets call it "heat"
The idea was creating a new status (like hunger health and sanity) that was recharged during the day, more during the summer, or near a fire, and could be spent to cast a heal (for example), and it would decay overtime (faster in the cold). And could it be limitless? As in no upper cap. 
Would that be possible? And if yes, how?
Thank you!