Octopus Saving Session

marlot

I see National Grid ESO have asked for a coal plant to be warmed up for tomorrow. 

"The ESO has issued a notification that we will warm one of our five winter contingency coal units for potential use on Tuesday 7 March."

"This notification is not confirmation that the unit will be used on Tuesday, but that it will be available to the ESO, if required."

With a cold snap forecast, I guess they're expecting a lot of demand.

Mstty

marlot said:

I see National Grid ESO have asked for a coal plant to be warmed up for tomorrow. 

"The ESO has issued a notification that we will warm one of our five winter contingency coal units for potential use on Tuesday 7 March."

"This notification is not confirmation that the unit will be used on Tuesday, but that it will be available to the ESO, if required."

With a cold snap forecast, I guess they're expecting a lot of demand.

Having watch guy Martin's channel 4 program this makes sense means they are planning ahead.

OldUserNewName

Anyone else that calculates their savings had difficulty agreeing with Octopus for the session on 21st Feb?

On the 8 sessions between 30th Nov and 13th Feb my calculation was within 1p of the Octopus calculation on all but one, the exception was 3p out.

However, on the 21st Feb session my calculation differs from the Octopus calculation by over 20p.  So not enough to get excited about, but just wondering why the discrepancy.  Has anything changed in the calculation?

Lorian

Near miss but no event tomorrow 

michaels

Lorian said:

Near miss but no event tomorrow 

Makes no sense to me why no event this evening or tomorrow with prices at £2000 per Mwh and the coal stations on full blast.

Mstty

Are they?

https://grid.iamkate.com/

michaels

They were
https://www.electricinsights.co.uk/#/dashboard?start=2023-03-07&&_k=sg1jnc

Spoonie_Turtle

michaels said:

They were
https://www.electricinsights.co.uk/#/dashboard?start=2023-03-07&&_k=sg1jnc

When was it £2,000/MWh?  The current half-hour on that site is £300/MWh at 20:37-21:00 and I can't find any way of seeing any other half-hour reports.

Edit: oh whoops, swapped to desktop site now (am on my tablet) and yep, there it is, 19:30 this evening.  Wow.

Scot_39

michaels said:

Lorian said:

Near miss but no event tomorrow 

Makes no sense to me why no event this evening or tomorrow with prices at £2000 per Mwh and the coal stations on full blast.

According to BBC article - they only powered up 2 of the 4 initially put on notice.

Thats not full blast.  But they did peak at c2GW around teatime - when the price hit £1950 according to grid.iamkate

Wind hit a low of 1.3GW at one stage before watched the news last night - less than 5% of 28GW installed capacity.

It might have dipped even further.

TheElectricCow

Interesting that with at least two test sessions left they didn’t schedule one at what seems like the ideal time for one to put a dent in at least some of the demand seeing as they’ll have to happen at some point this month anyway. 

Purely speculation on my part but I wonder if the remaining test dates have already been predetermined to take place another day, or perhaps NG are expecting even worse supply/demand conditions later on and are looking to get the most value from the last tests?