I think there should be a hidden achievement in game which would be called the 99% Perfection goal, which by definition stands in opposition to the extant 100% Perfection goal. 99% Perfection involves achieving all the basic goals of the game, with the exception of 100% Perfection, but by using the lowest cumulative amount of Energy in-game. There would be a Lazyboard with the lowest totals, accessible in Steam and GOG Galaxy (ironic as I use the standalone GOG version) on PC or via other cloud services on the various consoles and portable devices.
As inclusiveness and individual lack of achievement should be encouraged and lauded, worldwide totals would be an untoward situation. So each region or country should have its own totals as laziness is a social construct, and some regions have huge advantages over others as slothfulness is rewarded in different ways by leaders who have achieved various states of enlazyment. More leaders in the crusade for laziness er... efficient use of natural resources and energy should be celebrated around the world.
The strategies would be interesting to implement as Stardew Valley has a lot of tradeoffs when it comes to Energy use and Experience gained per time and g spent. For instance, planting hundreds of Parsnips uses relatively little g for the amount of Farming experience you gain, but absolutely kills your Energy stat and takes a ton of time. Same goes for Pickaxeing vs. Bombing vs. Staircases to get down lower in the Mines or Skull Cavern. Lots of tradeoffs there and thinking superficially about this, it's going to be financially expensive to save Energy by Bombing or using Staircases.
Of course it's called the 99% Perfection goal because someone already took the 100% name. And c'mon, we all know that only Gil can be really 100% Perfect.
Ok this is all self-centered, I just want to be rewarded for Lazy Farming dagnabbit!