Forum: 2.3 kW, 15 €/month, and 25% social bonus

Lowering power to 2.3 kW and paying 15 euros: the adjustment that is spreading

A forum user has three people at home. Two work simultaneously with powerful computers, air conditioning, a glass-ceramic cooktop, an oven, and a microwave. Contracted power: 2,300 watts. Bill: 40 euros every two months. The breakdown clashes with the logic of sizing power by summing appliances. The thesis defended by several participants is the opposite: that sum measures nothing useful, because not all appliances run at the same time, and according to these accounts, the limiter handles much more than the label promises.

The starting point is not faith, but a test. Before changing the contract, a general consumption meter is installed, and an alarm is programmed for the power level requested, or lower. For a while, they check when it sounds. With these data, the reduction stops being a gamble and becomes arithmetic.

Your own ICP: testing power before contracting it

Those who do not want to trust the meter have a more straightforward way. It consists of installing a 10-ampere ICP —equivalent to 2.3 kW— in series with the utility's in the home electrical panel and living normal life with it for a while. If it does not alucinación, the reduction is justified. For 3.45 kW, the device to install is a 15-ampere ICP-M, which is the same as a standard circuit breaker.

The subsequent procedure is cheap: about 10 euros to lower the power, a figure similar to the switch to time-of-use rates, and often they charge only once if both are requested together. The catch is that the distributor may not allow changing back for up to a year.

Why does 2.3 kW handle peaks of 4,500 W?

Here lies the technical core of the matter. The limiter does not act like an instant fuse. According to the case account, 2,750 watts are handled indefinitely, and 4,500 watts have been connected for less than half a minute without tripping. The reasoning defended is that almost no home equipment demands its nominal power continuously, so peaks —the cooktop, a compressor startup, a 40 to 100-ampere welding machine— could fit within that margin.

Some put numbers to this gap using the UNE 20317 tripping curve: power contracted can be exceeded by about 50% for one to five minutes. Others, however, claim to have seen the meter alucinación near 5,000 watts, suggesting variable real behavior.

How much is saved per year by lowering power?

The fixed charge is the cleanest lever. With 4.6 kW, you pay 20 euros a month and with 6.9 kW, about 30: ten euros monthly difference without touching a single appliance. This is added to the social bonus, a 25% discount that several participants link to the regulated tariff with 2.3 kW.

In the cited cases: a forum user with 2.3 kW and 65 kWh per month says they pay 15 euros for the bill, 0.4% of their salary. Another three-person household says they halved their consumption, from 450 to 220-250 kWh monthly, with all-electric appliances.

Social bonus and time-of-use rates: can they be combined?

Yes, they are compatible. The condition is being in the regulated market, the PVPC tariff, and not always with any supplier: the five large ones —Endesa, Iberdrola, Gas Natural, Eon, and Edp— are those that operate under this regime. At Endesa, the social bonus is applied automatically if you have 2.3 kW; the others usually require proof that it is the main residence.

To know if time-of-use rates are worthwhile, there is a way without betting blindly: download the hourly consumption file from the smart meter and run it through the CNMC simulator, which compares what you pay under tariff 2.0A and 2.0DHA. A cited case: someone with induction cooking almost always during peak hours saved 45 euros a year.

The smart meter changes the rules

Replacing the dial meter with a digital one transfers control to remote management. Practical advantage: if it cuts off due to excess power, there is no need to go down to the meter room. Just turn off the home breaker and turn it back on after three seconds. Among the data provided is the maximeter reading, the maximum average quart-hourly power demanded in a month, a direct clue for calibrating contracted power.

Warning for three-phase installations: with a digital meter, the cut-off occurs when exceeding one-third of the power in any of the phases. A detail that complicates things and pushes towards considering switching to single-phase.

From 1,000 kWh consumption to 300

The other half of the savings lies in usage, not the contract. With a few usage guidelines, without changing life habits, bills near 1,000 kWh have dropped to 300 in a bimonthly period. The most extreme case cited: 48 euros for 68 days and 290 kWh of consumption. On a monthly scale, some record 128 kWh per month.

Not all are victories. A reduction from 5.75 kW to 2.3 kW left a bimonthly bill from 80 to 25 euros, although the period was one and a half months, not two. Margins, according to the cases, do exist.

The surprising data is not that you can pay little for electricity. It is that a forum user with 2.3 kW declares 15 euros for the bill and 0.4% of their salary, while another claims to have connected 4,500 watts without anything tripping. Both are accounts of specific cases within the thread.