For a generator, an offtaker or a mine's energy buyer taking supply in Angola at medium or high voltage, the electricity tariff has moved and the household categories have not. The regulator, IRSEA, announced on 17 August 2026 that a partial update to tariffs for the 2025 to 2028 tariff cycle had been approved under two orders, Despachos 7535/2026 and 7536/2026.
The exclusion is explicit. The Social, single-phase domestic and three-phase domestic categories stay where they were. What moves is medium and high voltage supply, and with it a customer class the regulator describes as new: Grandes Clientes, or Large Customers, defined by contracted capacity equal to or greater than 2,000 kVA.
The two orders do different work, and the pairing is the substance of the tariff determination. Despacho 7535/2026 adjusts the Required Annual Revenue, the revenue allowance, of the public companies of the electricity sector. Despacho 7536/2026 approves the adjustment of the tariffs customers actually pay, and both sit with a communique on the partial adjustment for the period. The regulator records the purpose as reinforcing the sector's sustainability, the quality and continuity of supply, and the conditions for investment in and modernisation of infrastructure.
Read together, a revenue allowance that has been adjusted while the residential categories are held means the recovery lands on the industrial and commercial side of the cost of supply.
The rates themselves sit in the schedules the two orders carry rather than in the announcement, so the figure that matters to a buyer is the one against their own voltage level and contracted capacity. Two questions follow for anyone holding an Angolan supply account or pricing an offtake against one: what the new threshold does to a site sitting close to 2,000 kVA of contracted capacity, and whether a budget built on the cycle's earlier schedule still holds. For a PPA holder whose pricing references the regulated tariff, the reference point has changed while the residential one has not.
Source
- irsea.gov.ao /irsea-aprova-ajuste-parcial-das-tarifas-de-electricidade