Certain entities you place can be levelled up, which scales (if applicable) consumption as well as production with the level amount.
For example: If you have an Electric Furnace at level 2, it'll perform & consume twice as much. Level 3 will triple it, etc.
Important: Levelling up beyond level 10 usually costs Net Worth, which is displayed on the upgrade UI.

Here's an up-to-date list of all entities which can be levelled up across all of our modded servers.