Union of Mecholife/Powers and Essence

Elemental
The various forms of Elemental Energies are the best way for Mecholife to use essence. Some can use Elemental directly, but most subconsciously convert their own Mechiri into Elemental and thus use Elemental at a slightly weaker rate then biological life. Mecholife using Elemental Energies is equal to the average biolife using elemental Energies, but cannot use it for as long at that power level.

Time
Mecholife excels at using Time based abilities. They do this mostly with their own machine like ability to accelerate and act at speeds far greater then biological life. They can move, with effort, at their own specific terminal velocity. That could be 100+ miles per hour (very fast) in all their movement (punching, biting, using weapons). With essence they can move faster then their terminal velocity, sometimes even breaking the sound barrier (their bodies are more then able to withstand those forces). In a vacuum they can move almost any speed that doesn't rip them apart. The risk is that they will hit something that doesn't get out of the way or is stronger, which can crush them with their own inertia. Also that they will overdo it and rip their bodies apart.

An entirely essence based method is "true acceleration". This is when they break the rules, speeding themselves up as physical beings so that to them they are walking or running, but to biological life they are a blur. However, doing so ages the mecholife at the rate of acceleration. If they make it so that 5 days fits into 25 minutes, they age 5 days while biolife only ages 25 minutes. It's still a very powerful thing to be able to do on their own, no machines needed.

Mechiri
Called anything from Mechiri to Mecha to Mech, Mechiri is the literal power of the entire of Mecholife. The hyperbeing is the only one who can tap into it's full power, as she IS Mechiri. However, any mechanized being that has the willpower to tap into the wild and raging energies of mecholife can do so, at great risk of losing their sanity (hence the strong will). Tapping into this energy can put you on par with the average demigod, if only for a short time and at the cost of your sanity. Mechiri is a power source, nothing more. It can energize mechanized beings around you, speeding their growth, movement, and healing, as well as increase their powers and physical strength, but it cannot do anything on it's own beyond that. You must convert it into another form of essence in order to use it as a weapon.

Celestial
Celestial Energy for Mecholife is virtually useless. It cannot heal them, and has limited affects on them, due to the completely different forms of power that exist in Celestial and Mechiri. However, enough of either can overwhelm the other, but they are still weak against each other.

Chaos
Destructive and dangerous, Mecholife reacts to Chaos energy much the same as anything else in the universe.

Demonic
Mecholife can use Demonic, but not as well as Elemental or Time. They simply lack the nature to use it, since Mechi (essence of Mecholife) is at heart and good entity and kind being. Kind and Caring doesn't mix with Demonic all that well.