A Mana Generator is not an elegant object. It does not look like something that changed the world. It looks like a heavy stone and metal cabinet, roughly the size of a large wardrobe, bolted to the floor of whatever utility room or basement it has been installed in, connected to the conduit network through thick copper-threaded pipes that emerge from its upper housing and disappear into the wall. It hums at a frequency low enough to feel in the floor rather than hear clearly. It smells faintly of processed mana stone and warm metal. It is, in the opinion of every Mana Guild technician who has spent significant time around them, the least interesting-looking thing that has ever mattered this much.

The Generator's function is straightforward in principle and considerably less straightforward in practice. Refined Mana Stones are loaded into the Generator's feed chamber — a sealed internal compartment accessible through a heavy panel on the front face — where they are seated into contact cradles that draw their stored energy out in a controlled, regulated flow rather than all at once. The energy passes through the Generator's internal circuit system, which smooths and stabilises it before feeding it into the conduit network at a consistent pressure. The spent stones, their charge fully depleted, are removed during the next maintenance cycle and replaced.

The critical word is regulated. A Refined Mana Stone released without regulation discharges its energy in a single rapid event — useful for some applications, catastrophic for a network of lamps, heating systems, and mechanical equipment that needs stable, continuous power. The Generator's internal circuitry, developed by Mana Guild alchemists over decades of refinement during the Mana Revolution, is specifically designed to prevent that discharge from happening all at once and instead stretch it into a steady, manageable output that the conduit network can carry without surging.

The size of a Generator determines how much of that output it can produce and therefore how large a network it can support. Small residential Generators, no larger than a storage chest, power a single building's basic lamp and heating needs. Mid-size commercial Generators handle the more demanding loads of guild halls, large inns, and workshop facilities. Industrial Generators, the kind installed in the Mana Refinery, the Guardian Checkpoints, and the Harbour Halls, are substantial pieces of infrastructure in their own right — requiring dedicated utility rooms, regular maintenance visits from qualified technicians, and stone replacement schedules that are tracked as a line item in the operating budget of any institution that runs them.

The stone consumption rate is the Generator's primary operating cost and the number that every building manager, guild administrator, and district official learns to watch carefully. A Generator running efficiently consumes stones at a predictable rate. A Generator whose internal circuits have drifted out of calibration consumes more stones than it should while producing less usable output — a problem that compounds quietly until someone notices that the lamp in the corner is dimmer than it used to be and the heating in the upper floor has been unreliable for weeks.

Generators cannot be repaired by anyone other than licensed Mana Guild technicians. This is both a technical reality and a Guild policy, and the two are difficult to separate by design. The internal circuitry is complex enough that attempting repairs without proper training produces results ranging from ineffective to dangerous, and the Guild has never been inclined to make the technical documentation widely available. This arrangement ensures that every building in Versa with a Generator has an ongoing relationship with the Mana Guild, which suits the Guild's commercial interests precisely as well as one would expect.