Electrical Installation in Namibia: Residential FAQ

A full residential installation typically includes: the distribution board (DB board) and main circuit breaker, ring or radial circuits for plug points, dedicated circuits for heavy appliances (stove, geyser, air conditioning), lighting circuits, earthing and bonding, and external supply connection point. The scope varies depending on whether it is a new build, a renovation, or an upgrade.

Yes. A Certificate of Compliance (CoC) is issued by the registered person responsible for the electrical installation. It is required for new installations, major renovations, and when a property is sold. It confirms the installation meets Namibian electrical regulations. Keep the CoC — you will need it for insurance claims and property transactions.

Electrical work must be done by or under the supervision of a person with the appropriate trade qualification and registration. Ask your contractor for the registered electrician's details before work starts.

The minimum required by regulations is low — real-world requirements are much higher. A modern home needs at least 4–6 plug points per living area, dedicated circuits for the kitchen (stove, kettle, fridge, microwave), and dedicated outdoor/garden points. Plan generously — retrofitting plug points into finished walls is expensive.

The distribution board (DB board) should have enough ways (circuit slots) for all current circuits plus 20–30% spare capacity for future additions. For a standard three-bedroom house, a 12–16 way single-phase board is typical, but the correct size depends on the load analysis for your specific home.

Yes, but the installation must be done correctly and the DB board modified to accommodate the solar inverter output. Poorly done solar integration can back-feed dangerous voltage into the grid and void your CoC. Use a contractor who is experienced with solar integration, not just basic wiring.

Single-phase (220/230V) is the standard residential supply across most of Namibia. Three-phase supply is used for heavy industrial equipment, large air conditioning systems, and some agricultural applications. Most homes do not need three-phase. If you run a workshop or heavy equipment from home, check your load requirements.

For a standard three-bedroom house, the rough-in (first fix — conduit and cable before walls are closed) takes two to three days. The second fix (fitting outlets, switches, DB board, and testing) takes another two to three days. Total first and second fix is typically one to two weeks for a standard build, more for a large or complex project.