NAA's primary role is to support drilling operations, well control, living quarters, and bridge-linked utility distribution to the associated processing platform (NAB). Drilling rigs operate from its well bay to access up to around two dozen production and injection wells in the Alwyn North and satellite fields. Accommodation modules house crew and contain control rooms with integrated safety and communications. Power and utilities (electrical distribution, HVAC, water systems, emergency systems) originate here and flow to NAB across the bridge. Bridge connections carry power, fire-gas control, control and safety cabling, and process lines for cross-platform integration. NAA hosts drilling support systems, blowout preventer (BOP) control interfaces, mud/gas separators, and well intervention spaces. Combined with NAB, the twin-platform complex manages multiphase production, fluid separation, gas compression, and conditioning. Treated hydrocarbons are exported: oil via pipeline to Cormorant Alpha and onward to Sullom Voe, and gas via the Frigg UK Pipeline to St Fergus. Utilities include gas-turbine power generation, firewater systems, and produced water handling.