EDF has a little trouble getting through the winter

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Re: EDF is struggling to get through the winter




by Christophe » 13/11/16, 18:57

Yes, probably a little of both ... in fact, as electricity cannot be stored, availability and consumption are highly correlated ...

Ah I found: it's because we cut the Christmas decorations : Shock: : Shock:
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Re: EDF is struggling to get through the winter




by moinsdewatt » 01/12/16, 18:30

The nuke climbed to 47 GW.

But as it is cold France is in continuous imports yesterday and today (imports of 2.8 GW at 18 p.m.).
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Re: EDF is struggling to get through the winter




by Did67 » 01/12/16, 23:03

dede2002 wrote:It is also the only week when almost everyone is on vacation.
It would be the share of energy (in less) of offices and industries closed for the occasion?


The foreseeable fall in demand should not influence "availability".

It is indeed on the side of the capacity of mobilizable production that we must look.

It would seem strange to me that maintenance shutdowns are scheduled. For a nuclear power plant, it's too short.

So I also think that it is on the side of staff leaves at the producers that we must look, probably unable to operate the same capacity as a week before or a week after. A sort of minimum "service", with capacities that cannot be mobilized for lack of people ...
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moinsdewatt
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Re: EDF is struggling to get through the winter




by moinsdewatt » 06/12/16, 20:59

Nuclear weakness boosts coal and gas

Reuters 06 / 12 / 2016

Means of fossil electricity production were significantly more used in France in the third quarter of 2016 than in the same period of 2015 due to the poor performance of the nuclear fleet, according to data published on Tuesday by the Regulatory Commission of energy (CRE).

The production rate of the coal sector jumped in September over a year, from 17% to 35% in a context of reduction in installed capacity, while that of the gas sector increased from 10% to 26% over the entire quarter, said the regulator in its quarterly wholesale market observatory.

CRE also stressed that the nuclear production rate had reached "historically low levels", at 58,3% against 68,7% in the third quarter of 2015, and that in this context the French export balance plunged by 45%.

Short-term market prices averaged 32,3 euros per megawatt / hour (MWh) during the quarter but saw a "sharp rise" in the last 15 days of September, with the 2017 calendar product being increased from 32 euros / MWh at the beginning of September to 40 euros / MWh at the beginning of October.

Gas consumption in France also increased by 11% compared to the third quarter 2015, in particular due to greater demand from gas-fired power plants, whose consumption tripled over one year.

http://www.boursorama.com/actualites/la ... 72e9e8161c
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Re: EDF is struggling to get through the winter




by Did67 » 07/12/16, 10:06

And to say that Germany is (wrongly) accused of exploding the consumption of coal-based electricity!

Now, high percentages from a very low base, that is impressive, but that is not necessarily much!
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Re: EDF is struggling to get through the winter




by Ahmed » 07/12/16, 13:51

The base is not so weak since the fleet of coal-fired power plants has been gradually dismantled to keep only the most efficient; currently there are only three left (I wrote four, but that of Ivry / Seine has not existed since 2015 and they hadn't even warned me! : Wink: ), but they are "good fat", not anecdotal "odds and ends"!
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Re: EDF is struggling to get through the winter




by moinsdewatt » 07/12/16, 19:44

Coal-fired power plants gave 2.0 to 2.3 GW today according to the RTE website.

It's not that much. the nuke was at 50 GW. The gas was around 8-9 GW.

http://www.rte-france.com/fr/eco2mix/ec ... nergetique
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Re: EDF is struggling to get through the winter




by moinsdewatt » 13/01/17, 20:08

(France) The electrical system will suffer from the severe cold to come but there will be no blackout

Ludovic Dupin Usine Nouvelle on 13/01/2017

Negative temperatures throughout the day and below -10 ° C at night. The heaters will run at full speed, which will put the electrical network under tension when part of the means of production will not be accessible. But RTE has a plan to avoid any blackouts.

The week of January 16, it will be cold, very cold! According to forecasts adopted by RTE, the electricity transmission network in charge of ensuring security of supply in France, temperatures will be 3 to 8,7 ° C below seasonal norms. We are getting closer to the worst-case scenario mentioned by François Brottes, President of RTE, on the occasion of the presentation of his forecast for winter 2016-2017 last November. "This winter is placed under strong vigilance. Certain days of winter, at certain times of the day, we could be brought to mobilize exceptional means", he explained. This moment has clearly arrived.

According to forecasts from the network regulator, the peak consumption could reach 101 MW on Thursday January 600 at 19 p.m. We will therefore approach the absolute record reached on February 19, 8 at 2012MW. In theory, France has an installed capacity of 102 MW but the whole is not available. The 098 MW of solar power cannot be used during peak consumption because it is already dark and the wind regimes will only partially benefit from the 130 MW of wind power.

Image

Lack of nuclear power

It is therefore the hydroelectric, thermal and above all nuclear power stations that will run at full speed. However, there is a great deal of uncertainty over this latter tool. In recent months, the Nuclear Safety Authority (ASN) has requested the shutdown of several reactors to explore the risks of anomalies. ASN has authorized the restart of nine of the twelve reactors concerned. EDF has already brought back into service seven and an eighth is expected to be reconnected to the network on January 16.

In addition, the nuclear gendarme asked EDF to shut down two additional reactors. But EDF asked to postpone this decision for two weeks because of the coming cold snap. The authority authorized it for one of the two reactors: Tricastin 2: "ASN considered this postponement to be acceptable with regard to safety and set February 3, 2017 as the deadline for the checks", explains the Authority. Ultimately, EDF should not have access to 5 of its 58 reactors in its fleet, which has a total capacity of 63 MW.

A nuclear fleet below its maximum capacity, almost zero renewable resources excluding hydraulics. The situation will be tense for RTE, which must balance supply and demand. That said, the risk of power shortage is moderate since RTE has planned several barriers before arriving at such extremes. First, France will benefit from the interconnections with England, Belgium, Germany, Switzerland, Italy and Spain. The theoretical maximum allows the import of 12 MW. RTE thinks that 7000 MW will be available through this. The cold snap affects all of Europe, but our neighbors use electric heating less than the French.

At worst, scheduled load shedding

Second, RTE can request erasure. These are industrial or individual consumers who will voluntarily, at the request of the network operator, temporarily reduce their consumption. The available capacity reaches 3150 MW for this winter. Third, RTE has signed interruptibility contracts with 21 industrial consumers that consume a lot in the aluminum and steel sectors, for example. They are able to cut their consumption in less than 5 seconds. These actors were recruited by a call for tenders from RTE. Together, they can reduce requirements up to 1500 MW.

Fourth, RTE will appeal to citizen actions through alerts sent to smartphones via its "Eco2mix" application. These are messages that alert users to upcoming consumption peaks and call on them to take eco-friendly actions such as postponing the use of certain appliances (washing machine, dryer, etc.), lowering the heating slightly, switching off lights in unoccupied rooms, etc. At RTE, it is estimated that, depending on the mobilization, this device can represent from 1000 to 5000 MW.

Fifth, RTE may decide to lower the electrical voltage on the distribution networks by 5%: this results in a decrease in the efficiency and yield of certain electrical devices but without cutting any use. 4 MW can be recovered through this, the equivalent of the consumption of Paris and Marseille combined. Sixth, in the event of extreme necessity, RTE can carry out scheduled load shedding. These are controlled power cuts in certain areas of the network. A customer cannot be cut for more than two hours, which is why RTE plans a rotating load shedding.


http://www.usinenouvelle.com/article/le ... ut.N487414
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Re: EDF is struggling to get through the winter




by moinsdewatt » 05/02/17, 18:52

Cold wave: RTE was very hot!

Published on 27/01/2017 Boursier.com

The manager of the French electricity transmission network draws up a positive assessment of this cold wave, thanks to renewable energies and imports in particular ...

RTE, the manager of the French electricity transmission network, takes stock this Friday of the cold wave that has hit France in recent days ... Regarding the period from January 16 to 25, he mentions one of the two most complicated episodes to manage since 2000 (after that of 2012), and "exceptionally low electrical margins".

"With temperatures reaching -6 ° C below normal for the season, consumption peaks several times higher than 93.000 MW, and availability of the generation fleet reduced to 90.000 MW on average, RTE had to face a delicate electrical situation and unprecedented to maintain the electricity supply of France during the cold snap ", we can read in a press release.

Consumers have played the game ...

Last week (January 16-20) was the most difficult for RTE agents to manage. At the evening peak, Spain (1.352 MW on average), Belgium (1.015 MW on average) and Germany (772 MW) were the three most exporting countries to France.

For their part, renewable energies covered up to 17% of French consumption (Wednesday January 18 and Thursday January 19).

Consumer awareness has also helped prevent power outages. The erasure, which consists for certain voluntary customers in postponing their consumption - for example industrial sites which agree to stop certain stations during periods of tension - has made it possible to reduce the latter up to 2.200 MW, on Wednesday 25 January, or close to the equivalent of the consumption of a city like Paris intramural.

Fragile balance

In addition, more than one in two French people have changed their electrical habits, by heating less for example, so that there is no power cut, according to an Ifop survey carried out for RTE.

All of these means made it possible not to resort to exceptional gradual solutions, such as the interruption of industrial sites, or localized outages, to compensate for the unavailability of several nuclear reactors, concludes RTE ...

http://www.boursier.com/actualites/econ ... html?fil82
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Re: EDF is struggling to get through the winter




by Did67 » 05/02/17, 19:07

I heard that the Spanish were complaining because the retail prices of their electricity had increased, in particular because their producers preferred to sell dearly to France ...

NB: We never talk about the economic balance; that is to say the cost of this peak electricity ... We import very expensive. AND we export inexpensive electricity - when nobody is looking for it, sometimes at a loss!). Wait for the accounts of EdF ...
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