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Running a commercial kitchen
In a dark-kitchen site, some energy is yours alone and some is shared - and the shared part, spread across every unit, is easy to pay without ever questioning. Understanding how it works is the first step to cutting it.
The short answer
A dark-kitchen site runs communal systems - shared extraction, cooling, lighting, and building services - whose energy is billed across all the units, often as a service charge rather than a meter you control. Because it is shared and indirect, it is easy to pay without scrutiny. Understanding how the communal cost is generated and apportioned is what lets an operator see where it is high and start to bring it down.
What communal energy is
A dark kitchen - a site of multiple delivery-only kitchen units under one roof - has two kinds of energy cost. There is the energy each unit uses directly, on its own cooking and equipment, and there is the communal energy: the shared systems that serve the whole building. Extraction and ventilation, communal cooling and heating, shared refrigeration or cold storage, corridor and external lighting, and the building's general services all draw power on behalf of everyone.
That communal energy is a real and often substantial cost, but it is different in character from a unit's own bill. It is generated by systems no single operator controls and consumed on behalf of the whole site - which is exactly what makes it easy to overlook and hard to influence as an individual tenant.
How it reaches you
Because communal systems serve everyone, their energy cost is usually apportioned across the units rather than metered to each - typically bundled into a service charge based on floor area, a fixed share, or some agreed formula. So an operator does not see a communal energy meter; they see a charge that lands with the rent, covering their slice of the whole site's shared consumption.
This indirect billing is the crux of the problem. When a cost arrives as a share of a total rather than a meter you can watch, there is little to connect your behaviour to the bill and little visibility of whether the total is reasonable. The communal charge gets paid because it has to be, not because anyone has examined it - which is how shared energy costs drift upward unchallenged.
Why it can be higher than it should
Communal systems are prone to inefficiency precisely because they are nobody's individual responsibility. Shared extraction that is grease-choked and struggling, communal cooling working against it, lighting left on across empty areas, and plant that is oversized or poorly maintained all inflate the communal draw - and because no single operator owns the systems, no single operator is fixing them.
That diffusion of responsibility is why communal energy is often higher than it needs to be. The site as a whole pays for the inefficiency, spread thinly enough across the units that no individual feels the sting sharply, so the pressure to address it is weak. The cost is real; the ownership of reducing it is missing.
The first move
Cutting communal energy starts not with a technical fix but with visibility. An operator who understands what the communal charge covers, how it is apportioned, and roughly what is driving it is in a position to question it - to ask the site operator whether the shared extraction is maintained, whether the plant is efficient, whether lighting and services are controlled sensibly. A charge that no tenant ever questions is a charge with no downward pressure on it at all.
So the first, and often most powerful, move is simply to stop treating the communal charge as an unexaminable fixed cost. Knowing how it works lets you raise the right questions with the landlord or site operator, and collective pressure from tenants who understand the cost is what tends to get the shared systems maintained and the communal bill controlled.
The takeaway
For a dark-kitchen operator, communal energy is a cost you influence indirectly - through understanding and pressure rather than by flipping your own switches. But that influence is real. Sites where tenants understand and question the communal charge tend to run more efficiently than sites where it is paid without a second look, because someone is finally applying pressure to a cost that otherwise drifts.
So the route to cutting communal energy begins with understanding it: what it covers, how it is shared, and where it is likely to be wasteful. That knowledge is the lever. The specific actions - maintenance of shared plant, better controls, efficient systems - follow from tenants and site operators who actually know what they are paying for and why.
Questions
The energy used by shared systems that serve the whole site - extraction and ventilation, communal cooling and heating, shared refrigeration, corridor and external lighting, and general building services - as opposed to a unit's own direct energy use.
Usually apportioned across the units rather than metered to each - bundled into a service charge based on floor area, a fixed share or an agreed formula. Operators see a charge, not a meter they control.
Because it arrives as a share of a total rather than a meter you can watch, there is little connecting your behaviour to the bill and little visibility of whether the total is reasonable - so it gets paid without scrutiny and drifts upward.
Because shared systems are nobody's individual responsibility. Grease-choked extraction, inefficient plant and uncontrolled lighting inflate the communal draw, and with no single owner, no one is fixing them.
Start with visibility - understand what the charge covers and how it is apportioned - then question it, pressing the site operator on whether shared plant is maintained and efficient. Collective tenant pressure is what tends to get shared systems fixed.
Not directly - you do not own the shared systems. But you influence it through understanding and pressure, which on many sites is what gets the communal bill controlled.
Shared extraction is a common communal energy drain - keeping it clean and efficient is the kind of fix that brings the bill down.
