Two companies, two jobs — this is where most people come unstuck. The grid belongs to the network operator; the contract is with a supplier. Call the wrong one about a fault and you wait for nothing.
| Period | Public opening |
|---|---|
| Network operator’s fault service | around the clock, including holidays |
| Suppliers’ customer service | usually working days |
| Transfer of a contract | 15 to 20 working days |
| Change of connected load | days to weeks, depending on the case |
A transfer takes weeks, not days. If you want power on the day you move in, start early.
Opening hours change. Please check before going: i-de.es
The documents required change with the rules. Current list: i-de.es
The connected load sets the standing charge. The potencia contratada in kilowatts determines how much can run at once — and it is paid for whether used or not. Many holiday homes are set too high. Lower it and you save permanently; lower it too far and the air conditioning and the oven together will trip the breaker.
When the power fails, look first at who else is affected. If it is only your flat, the fault is in the building’s installation. If the neighbours are dark too, it is the grid — then the network operator on 900 171 171, whoever your supplier is.
After a purchase the contracts often stay in the previous owner’s name. While they do, reminders go to their address and disconnection can arrive unnoticed.
The transfer is free. Costs arise only for a new connection, or after more than three years without supply, when the statutory connection rights apply, scaled by connected load. Tariffs are a matter for the supplier; compare independently at comparador.cnmc.gob.es.
No. It follows the postcode. Only the supplier — the company that bills you — is a matter of choice.
The regulated market applies a state-set price that varies by the hour; the free market applies the supplier’s tariff. The social tariff exists only in the regulated market.
On the bill, in kilowatts. For a flat, typical values are between 3.45 and 5.75 kW.
Then it is your own installation — usually the residual current device in the meter cupboard. The network operator is not responsible for that.
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Network operator and fault number for Altea checked August 2026. Tariffs and suppliers change constantly — your own bill is what counts.
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