Electric toasters, the big comeback!

[Ahmed]

The standard which will succeed RT2012 (thermal regulation) is called RE2021 (energy regulation) and will apply on January 1, 2021. By a sleight of hand due to intense lobbying, the coefficient taken into account is no longer primary energy, but final energy which changes everything and rehabilitates ipso facto the traditional toasters that had been eliminated by the current standard. Similarly, the DPEs will be distorted and electrically heated dwellings currently classified in C will change to B, while costing a maximum, without performance improvement, except on paper.
- For more details see two articles from "Que Choisir", from 20/02/2020 and 15/03/2020.

[sicetaitsimple]

the coefficient taken into account is no longer the primary energy, but the final energy which changes everything

Is that so??? Can you detail?

[Ahmed]

Yes ... Until now, the reference used for comparison and classification was primary energy, ie the energy that must be consumed to provide 1 kWh of final energy to the user's meter. Quote from What to Choose: "For most energies it is roughly equivalent, they exist in nature. Except electricity, which is produced from nuclear, coal, gas. It therefore takes an average of 2,58 kWh of primary energy to obtain 1 in electricity. Logically, we multiply the consumption displayed by 2,58 to have it in primary energy. Counting in final energy, that which is registered on the meter, is a device intended to favor electricity".
This is what allows to reintroduce these famous toasters ...

[sicetaitsimple]

I think you are wrong ... or that you are reading a bit fast .... Check, "What to Choose" is not necessarily "the truth".

[Christophe]

In the absence of links What to choose (which is seldom wrong all the same) would there be a link of authority, of reference, perhaps? To look for in the articles in question?

[sicetaitsimple]

The coefficient of primary energy / final energy in the production of electricity. would go from 2,58 to 2,3, which is quite normal given the increasing share of wind and solar renewable in electrical production, these having a coefficient of 1,

To illustrate, in 100% renewable hydro, wind and solar, the coefficient would be 1.

[Christophe]

Yes quite logical that there was a correction ... 2,58 date of (approximately) 20 years ago ...

Renewable energies, once the gray energy is absorbed, shouldn't it be at 0 (+ maintenance) on the other hand?

In my opinion, the concept of PE is intimately linked to the depletion of the resource ... right?

[Ahmed]

It could not be a coefficient of 1 in the RE, since there are still transport losses.
RE tends to lower the coefficient, but the importance of nuclear power works in the opposite direction, since it is significantly less efficient than conventional thermal power plants.

In my opinion, the concept of PE is intimately linked to the depletion of the resource ... right?

[Christophe]

Yes because nuclear or flame thermal use a palpable and exhaustible EP ...

Renewable energy does not consume this palpable and exhaustible energy ... hence my point ...

And there is little point in counting the primary Kwh of wind or solar ...

Besides if we did the solar kWh EP of PV would be more than 5 ... so much worse than gas and coal

[izentrop]

The new primary energy coefficient (Cep), which converts the final energy after transformation into its equivalent at the source, will thus be reduced to 2,3 against 2,58 in RT2012. This reduction, calculated on the average of the next 50 years, will allow electric heating systems to be more competitive against fossil fuels (gas, fuel oil and coal), whose Cep is equal to 1. Another new advantage for electricity : the carbon content of electric heating, which will be set at 79 g / kWh, almost three times less than the ratio of 210 g / kWh envisaged in an experimental scenario. By favoring sources of energy emitting little or no greenhouse gases such as nuclear or renewable electricity, the government clearly makes decarbonation its priority in new construction ...

“This will undoubtedly favor electric heating and including low-performing electric heating in the collective from radiators. Consequently, this will worsen the electricity bill of the French, ”regretted Patrick Corbin, president of the French Gas Association (AFG). Conversely, the electrical industry declares itself satisfied with the future regulations, in particular the new values ​​adopted for the Cep and the carbon content. “This choice did not fall from the sky, reacted the French Union of Electricity (UFE). The public authorities have decided to use a finer method that is closer to reality than before. This is essential if we want to achieve the objectives of the national low carbon strategy 2050. ” https://lenergeek.com/2020/01/20/batime ... imulations