How the Linky meter takes control of your water heater

The energy savings made possible by the measure are not anecdotal: 2.5 GW at 12:30 p.m. and 1 GW at 1:00 p.m., according to Enedis. Le figaro

By removing off-peak hours from 12pm to 2pm to reduce power consumption, Enedis may block power to certain electronic devices.

For twenty-four hours, many French people have questioned, even protested, the measures taken by Enedis at the request of the Ministry of Energy Transition, particularly with regard to hot water tanks. The wording, according to which the maneuver consisted in turning off the water heaters of several million households between 12 and 2 p.m. via their Linky meter, aroused the ire of the experts. Le figaro goes into detail about the specifics of the measure, which, as stated Tuesday, should prove completely painless.

Let’s start by specifying that the measure only affects households, businesses and local authorities that subscribe to a power of less than or equal to 36 kilovolt-amperes and opt for a so-called “Peak Hours / Off-peak Hours” from your electricity supplier. It’s that mechanism “Peak Hours / Off-peak Hours”, which has been around since the 1970s, and which is actually the core of the measure decided by the authorities. This type of contract consists of running certain devices from the electricity meter at times when the demand on the electricity grid is low. the hours said “hollow” – in exchange for a lower billing. This delayed control occurs thanks to a “Signal by electrical impulse that triggers the connected remote switch in one direction or the other” the electrical appliance, explains Nicolas Goldberg, specialist in these issues.

SEE ALSO – Gas Crisis: How is Europe Responding?

Abolition of the off-peak times between 12 p.m. and 2 p.m.

The water heater is one of these controllable electrical devices because it works by accumulation: the water is heated, then stored at temperature in the tank and can therefore be consumed later. In the same way, electric inertial or storage heaters, as well as certain household appliances (notably washing machines, dryers, dishwashers) can be programmed by the user to operate off-peak when demand for electricity from the grid is low.

In many contracts is the so-called deadline “dig” takes place at night from 8:00 p.m. to 8:00 a.m. and in the middle of the day. The measure taken by the government and introduced by Enedis is simply to eliminate the off-peak times between 12pm and 2pm, sometimes also called “Off-peak lunchtime”. “Certain off-peak times are not well placed. Typically, the time window from 12:00 p.m. to 2:00 p.m. is no longer relevant outside of peak times, as voltages can potentially occur in the power grid.”, says Nicolas Goldberg. In short, consumption habits have changed and off-peak hours aren’t really like that anymore.

The abolition of the nocturnal load control at midday from October 15th therefore prevents the automatic triggering of consumers such as electric water heaters during this time window. “This measure will be almost transparent to the consumer”, recalls Nicolas Goldberg on LinkedIn. Same observation for consumer association UFC-Que Choisir: “Apart from large hot water requirements at lunchtime, the measure could go unnoticed”. In summary, the households affected by the measure should not lack hot water at any time of the day or night.

SEE ALSO – Energy: The mayor against winning “wrongly from an annuity tied to crazy prices”

Significant energy savings

As already mentioned, the contracts “Off-peak/peak times” Passed before using the Linky meter. So why are only houses that are equipped with it affected? There “Linky makes it possible to keep the low tariff while postponing the introduction of the water heater», explains Thierry Sudret, Operations Manager at Enedis. Without this Linky meter specific option, the measure would have become expensive for households: all their devices would have been considered to be operating at peak times and electricity bills would have increased as a result. In addition, the measure is in no way mandatory. Anyone may disable control of their water heater during “rush hour/off-peak hours”, but not this “no interest “defends Nicolas Goldberg.

As a reminder, the energy savings allowed by the measure are not anecdotal: 2.5 GW at 12:30 p.m. and 1 GW at 1:00 p.m., according to Enedis. This further limits the risk of power outages during peak hours, which occur between 12 p.m. and 2 p.m. each day. “More than ever, the Linky meter is an indispensable tool for more responsible electricity consumption», Hammers the manager of the power grid.

SEE ALSO – Energy shortages: who is to blame?

Leave a Reply

Your email address will not be published. Required fields are marked *