Nuclear and carbon: what releases in CO2 / kWh? Figures PWC, EdF, ADEME, Stanford ...

[Christophe]

Roooooh he's teasing!

Sorry, I MUCH prefer fresh wood over fossil wood, eh ...

[sicetaitsimple]

Well, it's good that you are talking about this ... I suggest that we apply the method I already gave above to the EPR site.
This method, simple and fast, can give interesting orders of magnitude of the carbon of everything as long as we have its cost, like this one on gray energy: energies-fossil-nuclear / method-of-calculation-from-energy-gray-generic-t4897.html

So let's summarize the results (after several extensions of the exercise), the unit being the ass hair, PDC, corresponding to 4g / kWh:

- construction: for the EPR 0,5 PDC, 0,25 PDC for the existing fleet
- upstream 0,2PDC
- downstream, with a completely pifometrized (but a priori comfortable) hypothesis of € 150bn for dismantling and waste management, 0,25 PDC
- I forgot the fact that the employees of the power stations go to work by car, that they breathe and therefore emit CO2, and that there are current activities on the power stations .... A fixed price at 0,2PDC should?

0,25 + 0,2 + 0,25 + 0,2 = 0,9PDC, say 1PDC to round.

1PDC is 4g / kWh. Magic, right?

[Remundo]

I wanted to know for the 1/2 PDC.

Is it the part of the root halfway up, or is it halfway up the top of the hair?

the difference could be made ... "felt"

[Christophe]

Figures for 2017 according to RTE: http://www.novethic.fr/actualite/energi ... 45472.html

In 2017, gas and coal came to the rescue of French electricity ... but not the climate

Due to the low availability of the nuclear fleet and historically low hydrological stocks, the electricity system had to resort massively to fossil fuels to meet demand in 2017. If the hexagonal mix remains one of the least carbon-containing in Europe, the electricity sector nevertheless saw its CO2 emissions soar by 20%, to 27,9 million tonnes of CO2.

France may have acted to shut down its four coal-fired power stations by 2022 and EDF to have announced the anticipation of the closure of its last oil-fired power stations, but fossil fuels had not played a role if important in the French electric mix for many years. This is the sad observation made by the Electric Transport Network (RTE) in its 2017 balance sheet.

Thus, last year, fossil fuels occupied second place in the tricolor electric mix, a place usually devoted to hydraulics. Gas, fuel oil and coal produced 54,4 TWh (of 529,4 TWh in total), an increase of 20%. Fossil production represented 10,3% of the French electricity mix, of which 7,7% for gas, 1,8% for coal and 0,7% for fuel oil.

(...)

Bilan_ Électrique_RTE_2017_1.jpg (66.13 KiB) Consulted 3954 times

The PDC in French gr / kWh is therefore 27,9 MT of CO2 for 529,4 TWh of electricity

1 gr / kWh = 1 kg / MWh = 1 T / GWh = 1kT / TWh

We therefore end up with 27 / 900 = 529,4 gr CO52 / kWh of French electricity ...

This is the order of magnitude that I have always defended !!

[Christophe]

ps: I do not understand the 2 lines "including renewable" ... since the energies in question are renewable by nature? Does this speak to anyone?

[sicetaitsimple]

We therefore end up with 27 / 900 = 529,4 gr CO52 / kWh of French electricity ...

This is the order of magnitude that I have always defended !!

No one here has ever claimed that the French kWh way emitted 1 PDC, or 4g / kWh, I do not understand what you mean?

On "non-renewable" hydraulic production, it is the production of WWTPs.

[Christophe]

I don't quite understand the relationship with WWTP ... why isn't it a separate line ???

For the PDC, the EDF press service, which largely puts the PDC forward, tends to speak more of the PDC than average real emissions (50 to 60 gr / kWh ...) ...

This is where I am coming from!

So if we summarize:
52 gr medium
4 gr nuclear
71,6% of the nuclear share
X gr non nuclear

That makes an X of 173 gr / kWh ... which is still very reasonable then! (thank you hydraulics)

[sicetaitsimple]

I don't quite understand the relationship with WWTP ... why isn't it a separate line ???

For the PDC, the EDF press service, which largely puts the PDC forward, tends to speak more of the PDC than average real emissions (50 to 60 gr / kWh ...) ...

You have to ask RTE! But the WWTPs are still hydraulic production, but by convention not renewable (since it "pumps" with a mix).

EDF is not the only producer in France and only talks about its emissions, it does not seem to me abnormal?

[Christophe]

??

Out of the 42,3 TWh (not bad) Solar + Bio + Wind ... only 7 TWh would be renewable? The remaining 42,3 -7 = 35,3 TWh is still STEP ???

Anyway, I'm swimming!

[sicetaitsimple]

??

Out of the 42,3 TWh (not bad) Solar + Bio + Wind ... only 7 TWh would be renewable? The remaining 42,3 -7 = 35,3 TWh is still STEP ???

Anyway, I'm swimming!

No, it is 9,1TWh bioenergies, including 7TWh renewable (the explanation is mainly that by convention, 50% of the production of household waste incinerators is considered renewable).