How many electricity meters should be installed in the distribution box

Typically, a standard distribution or meter box is designed to house only one electricity meter per dwelling, though larger or specially designed boxes can accommodate multiple meters if approved by the utility provider.Standard Installation GuidelinesA typical meter enclosure is intended to hold the main intake, the electricity meter, and associated isolating devices. According to NICEIC guidance, only equipment belonging to the distributor or meter operator should be installed in the meter box, and there is no allowance for additional unrelated equipment . Installing more than one meter in a standard box is generally not permitted unless the box is specifically designed for multiple meters.Multi-Meter or Multi-Occupancy BuildingsFor buildings with multiple units, such as flats above a shop or multi-storey houses, each tenant usually requires a separate meter. If the existing supply has limited phases, installing more than three meters may require either:A larger distribution board (also called a ryefield board) to accommodate secondary fuses for each meter, orAn additional electricity supply to the building . The distribution board is connected to the main supply, and the utility provider assigns a Meter Point Administration Number (MPAN) for each new meter . The number of meters that can be installed depends on the physical space of the box and the utility provider's approval .Practical ConsiderationsOne box, one meter is the standard approach for single dwellings .For multiple meters, a switch room or larger meter enclosure may be necessary to maintain safety and compliance .The position of the box (inside a communal area or outside the building) can affect installation feasibility and aesthetics .Always consult the local electricity distributor or a qualified electrician before planning multiple meters, as they determine the maximum allowable configuration and ensure compliance with regulations .SummaryWhile a standard distribution box is designed for one meter per dwelling, multiple meters can be installed in specially designed enclosures or via a distribution board, provided the utility provider approves and safety regulations are followed. Planning for multi-meter setups should consider space, accessibility, and future upgrades to avoid costly modifications.