The vast majority of startups aren't doing anything remotely complex enough to be able to save money on electricity by paying for developers to write more efficient software. Or if they can - the instances are few and far between.
The vast majority of startups are also heavily cash-flow negative - so anything you do likely won't pay for itself.
The vast majority of startups are also heavily cash-flow negative - so anything you do likely won't pay for itself.
It's almost always a bet on a rosy future.