Eirgrid figures during night time EV charging

ted1

KCross wrote: »

Yay! Coal back to 0%
And anyone charging their car at night can say 50% of it was renewable. Not a bad figure at all.

Carbon taxes have made CCGT cheaper, so coal is being pushed aside

antoinolachtnai

ted1 wrote: »

Could be any number of reasons why. Lots of limitations there may be lines , transformers out of service on the grid that restricts transmission capabilities. By not offering N-1 contingencies

You can look at the instruction file and see the instructions that were sent to wind farms, whether they were national curtailments or local constraints.

If there were more dispatchable demand (like car charging or heating) particularly near wind farms, it might be possible to reduce constraint (and curtailment).

My limited experience of it is that constraint and curtailment have not amounted to that much this winter at least. Maybe 2 percent?

KCross

Update to OP

% Wind vs Demand from 4-8am

Date|% Wind(4am-8am)|Low|High|gCO2/kW(4am-8am)|Low|High|Total Wind %(24hr)|Total Coal %(24hr)|Total Gas %(24hr)
28/7-26/8 2017|28|0|58|365|288|433|24
25/8-23/9|26|1|67|375|259|458|24
23/9-22/10|36|1|62|305|210|429|34
22/10-19/11|29|1|62|334|225|421|23
20/11-18/12|38|5|68|347|224|463|30|16|39
19/12-17/1 2018|46|3|75|331|209|472|39|13|35
17/1-15/2|50|4|75|295|215|500|42|12|33
15/2-16/3|35|1|71|371|215|522|33|20|39
16/3-14/4|29|0|71|373|211|513|26|17|43
14/4-13/5|32|2|82|291|247|336|32|9|45
13/5-11/6|14|1|62||||13|7|66
11/6-10/7|19|1|75||||18|8|65
10/7-8/8|18|1|67|316|212|372|17|6|68
8/8-5/9|30|1|73|319|224|447|26|6|59
6/9-5/10|34|5|74|332|208|440|32|5|49
5/10-3/11|37|1|76|323|204|437|32|0|52
3/11-2/12|51|18|75|276|201|390|44|0|45
2/12-31/12|47|3|80|266|203|393|40|0|42
31/12-29/1 2019|36|4|77|341|203|499|30|5|46
30/1-27/2|56|12|77|273|208|411|48|5|35
27/2-28/3|43|6|84|297|218|394|38|3|43
28/3-25/4|31|1|78|302|217|394|29|1|53
26/4-25/5|25|1|77|325|213|429|22|0|64
24/5-22/6|29|3|63|333|245|436|28|2|59
24/6-23/7|24|1|73|261|206|331|22|0.5|67
22/7-20/8|34|1|77|258|201|374|32|1|54
20/8-18/9|38|7|72|298|203|456|33|1|49
18/9-17/10|41|4|77|301|206|475|38|2|46
18/10-15/11|39|2|80|297|203|400|36|2|46
15/11-14/12|43|6|83|300|201|417|37|4|43
14/12-12/1 2020|36|4|75|287|202|432|35|2|43
12/1-10/2|51|5|75|262|203|362|44|0|42
10/2-9/3|60|8|78|232|202|327|55|0|35


New record... 60% of your car charging was renewable the last 4 weeks!

denismc

There seems to be a noticeable dip in electricity consumption in the last couple of weeks with so many businesses shut down.

KCross

Update to OP

% Wind vs Demand from 4-8am

Date|% Wind(4am-8am)|Low|High|gCO2/kW(4am-8am)|Low|High|Total Wind %(24hr)|Total Coal %(24hr)|Total Gas %(24hr)
28/7-26/8 2017|28|0|58|365|288|433|24
25/8-23/9|26|1|67|375|259|458|24
23/9-22/10|36|1|62|305|210|429|34
22/10-19/11|29|1|62|334|225|421|23
20/11-18/12|38|5|68|347|224|463|30|16|39
19/12-17/1 2018|46|3|75|331|209|472|39|13|35
17/1-15/2|50|4|75|295|215|500|42|12|33
15/2-16/3|35|1|71|371|215|522|33|20|39
16/3-14/4|29|0|71|373|211|513|26|17|43
14/4-13/5|32|2|82|291|247|336|32|9|45
13/5-11/6|14|1|62||||13|7|66
11/6-10/7|19|1|75||||18|8|65
10/7-8/8|18|1|67|316|212|372|17|6|68
8/8-5/9|30|1|73|319|224|447|26|6|59
6/9-5/10|34|5|74|332|208|440|32|5|49
5/10-3/11|37|1|76|323|204|437|32|0|52
3/11-2/12|51|18|75|276|201|390|44|0|45
2/12-31/12|47|3|80|266|203|393|40|0|42
31/12-29/1 2019|36|4|77|341|203|499|30|5|46
30/1-27/2|56|12|77|273|208|411|48|5|35
27/2-28/3|43|6|84|297|218|394|38|3|43
28/3-25/4|31|1|78|302|217|394|29|1|53
26/4-25/5|25|1|77|325|213|429|22|0|64
24/5-22/6|29|3|63|333|245|436|28|2|59
24/6-23/7|24|1|73|261|206|331|22|0.5|67
22/7-20/8|34|1|77|258|201|374|32|1|54
20/8-18/9|38|7|72|298|203|456|33|1|49
18/9-17/10|41|4|77|301|206|475|38|2|46
18/10-15/11|39|2|80|297|203|400|36|2|46
15/11-14/12|43|6|83|300|201|417|37|4|43
14/12-12/1 2020|36|4|75|287|202|432|35|2|43
12/1-10/2|51|5|75|262|203|362|44|0|42
10/2-9/3|60|8|78|232|202|327|55|0|35
10/3-7/4|44|12|79|265|206|324|42|2|41

KCross

Update to OP

% Wind vs Demand from 4-8am

Date|% Wind(4am-8am)|Low|High|gCO2/kW(4am-8am)|Low|High|Total Wind %(24hr)|Total Coal %(24hr)|Total Gas %(24hr)
28/7-26/8 2017|28|0|58|365|288|433|24
25/8-23/9|26|1|67|375|259|458|24
23/9-22/10|36|1|62|305|210|429|34
22/10-19/11|29|1|62|334|225|421|23
20/11-18/12|38|5|68|347|224|463|30|16|39
19/12-17/1 2018|46|3|75|331|209|472|39|13|35
17/1-15/2|50|4|75|295|215|500|42|12|33
15/2-16/3|35|1|71|371|215|522|33|20|39
16/3-14/4|29|0|71|373|211|513|26|17|43
14/4-13/5|32|2|82|291|247|336|32|9|45
13/5-11/6|14|1|62||||13|7|66
11/6-10/7|19|1|75||||18|8|65
10/7-8/8|18|1|67|316|212|372|17|6|68
8/8-5/9|30|1|73|319|224|447|26|6|59
6/9-5/10|34|5|74|332|208|440|32|5|49
5/10-3/11|37|1|76|323|204|437|32|0|52
3/11-2/12|51|18|75|276|201|390|44|0|45
2/12-31/12|47|3|80|266|203|393|40|0|42
31/12-29/1 2019|36|4|77|341|203|499|30|5|46
30/1-27/2|56|12|77|273|208|411|48|5|35
27/2-28/3|43|6|84|297|218|394|38|3|43
28/3-25/4|31|1|78|302|217|394|29|1|53
26/4-25/5|25|1|77|325|213|429|22|0|64
24/5-22/6|29|3|63|333|245|436|28|2|59
24/6-23/7|24|1|73|261|206|331|22|0.5|67
22/7-20/8|34|1|77|258|201|374|32|1|54
20/8-18/9|38|7|72|298|203|456|33|1|49
18/9-17/10|41|4|77|301|206|475|38|2|46
18/10-15/11|39|2|80|297|203|400|36|2|46
15/11-14/12|43|6|83|300|201|417|37|4|43
14/12-12/1 2020|36|4|75|287|202|432|35|2|43
12/1-10/2|51|5|75|262|203|362|44|0|42
10/2-9/3|60|8|78|232|202|327|55|0|35
10/3-7/4|44|12|79|265|206|324|42|2|41
8/4-7/5|28|3|91|274|206|331|24|4|60

KCross

Just a small aside because of the Covid-19 times we live in, I decided to just look back at the raw data I have from this time last year and I compared the average 24hr demand figure for the same time period to see what affect the lockdown has had on the grid.

So I took 28 Mar - 7 May and compare 2019 to 2020

Average 24/7 demand for 2019 was 3302MW and 2020 was 3007.

So about a 9% drop in demand. I thought it might have been more tbh. Obviously alot of demand just shifted from workplaces to homes but with so many high consuming businesses closed I would have thought it would have dropped more.

antoinolachtnai

KCross wrote: »

Just a small aside because of the Covid-19 times we live in, I decided to just look back at the raw data I have from this time last year and I compared the average 24hr demand figure for the same time period to see what affect the lockdown has had on the grid.

So I took 28 Mar - 7 May and compare 2019 to 2020

Average 24/7 demand for 2019 was 3302MW and 2020 was 3007.

So about a 9% drop in demand. I thought it might have been more tbh. Obviously alot of demand just shifted from workplaces to homes but with so many high consuming businesses closed I would have thought it would have dropped more.

Well, we have very little industrial base. What industrial base we have is operating to a large extent.

YFlyer

ted1 wrote: »

Could be any number of reasons why. Lots of limitations there may be lines , transformers out of service on the grid that restricts transmission capabilities. By not offering N-1 contingencies

Happens most night and inline with use.

ted1

KCross wrote: »

Just a small aside because of the Covid-19 times we live in, I decided to just look back at the raw data I have from this time last year and I compared the average 24hr demand figure for the same time period to see what affect the lockdown has had on the grid.

So I took 28 Mar - 7 May and compare 2019 to 2020

Average 24/7 demand for 2019 was 3302MW and 2020 was 3007.

So about a 9% drop in demand. I thought it might have been more tbh. Obviously alot of demand just shifted from workplaces to homes but with so many high consuming businesses closed I would have thought it would have dropped more.

What data centres cane along in that 12 month difference. Could easily have been 200-300MW added

ted1

YFlyer wrote: »

Happens most night and inline with use.

Yes, until we raise our SNSP limits there will always be curtailment when the Demand is low and the wind is blowing

ted1

antoinolachtnai wrote: »

Well, we have very little industrial base. What industrial base we have is operating to a large extent.

EurGrid statement from March
https://www.irishtimes.com/news/ireland/irish-news/coronavirus-fundamental-shift-in-electricity-use-says-eirgrid-1.4215613?mode=amp

KCross

ted1 wrote: »

What data centres cane along in that 12 month difference. Could easily have been 200-300MW added

Not sure how reliable this article is from last Sept but it doesnt seem likely if its true...

https://www.siliconrepublic.com/enterprise/irish-data-centres-investment-report-2019

There are 53 operational data centres in Ireland, which have capacity of 622MW. With eight more under construction and 26 with planning approval, the data centres in the pipeline would more than double Ireland’s capacity by 2025.

YFlyer

ted1 wrote: »

Yes, until we raise our SNSP limits there will always be curtailment when the Demand is low and the wind is blowing

We can get up to 65%. Portugal has managed 100 renewables for a few days.

Would the use of smart meters, like the ones Duncan Stewart was talking about on tv, make a difference?

ted1

YFlyer wrote: »

We can get up to 65%. Portugal has managed 100 renewables for a few days.

Would the use of smart meters, like the ones Duncan Stewart was talking about on tv, make a difference?

Portugal has Synchronous interconnetors with other countries So they have frequency and voltage support. That’s out weakness. If we get a dip we could have a cascade which crashes our grid
We will get there but we need to spend €19bn to do it.

Edit: 38% hydro is very different than having just wind

https://www.apren.pt/en/renewable-energies/production

antoinolachtnai

YFlyer wrote: »

We can get up to 65%. Portugal has managed 100 renewables for a few days.

Would the use of smart meters, like the ones Duncan Stewart was talking about on tv, make a difference?

Renewables can go up higher than that. Went to 78 percent today. There are major challenges going beyond that or maybe even sustaining that.

Smart metering might make a difference in specific circumstances If combined with other measures.

Lumen

antoinolachtnai wrote: »

Smart metering might make a difference in specific circumstances If combined with other measures.

Power cuts? :pac:

antoinolachtnai

Lumen wrote: »

Power cuts? :pac:

Well you could do that! But more likely with a responsive tariff that went up and down in tandem with the prevailing electricity price.

liamog

Was looking at the smartgriddashboard today, almost no wind power on the grid at all.

KCross

Update to OP

% Wind vs Demand from 4-8am

Date|% Wind(4am-8am)|Low|High|gCO2/kW(4am-8am)|Low|High|Total Wind %(24hr)|Total Coal %(24hr)|Total Gas %(24hr)
28/7-26/8 2017|28|0|58|365|288|433|24
25/8-23/9|26|1|67|375|259|458|24
23/9-22/10|36|1|62|305|210|429|34
22/10-19/11|29|1|62|334|225|421|23
20/11-18/12|38|5|68|347|224|463|30|16|39
19/12-17/1 2018|46|3|75|331|209|472|39|13|35
17/1-15/2|50|4|75|295|215|500|42|12|33
15/2-16/3|35|1|71|371|215|522|33|20|39
16/3-14/4|29|0|71|373|211|513|26|17|43
14/4-13/5|32|2|82|291|247|336|32|9|45
13/5-11/6|14|1|62||||13|7|66
11/6-10/7|19|1|75||||18|8|65
10/7-8/8|18|1|67|316|212|372|17|6|68
8/8-5/9|30|1|73|319|224|447|26|6|59
6/9-5/10|34|5|74|332|208|440|32|5|49
5/10-3/11|37|1|76|323|204|437|32|0|52
3/11-2/12|51|18|75|276|201|390|44|0|45
2/12-31/12|47|3|80|266|203|393|40|0|42
31/12-29/1 2019|36|4|77|341|203|499|30|5|46
30/1-27/2|56|12|77|273|208|411|48|5|35
27/2-28/3|43|6|84|297|218|394|38|3|43
28/3-25/4|31|1|78|302|217|394|29|1|53
26/4-25/5|25|1|77|325|213|429|22|0|64
24/5-22/6|29|3|63|333|245|436|28|2|59
24/6-23/7|24|1|73|261|206|331|22|0.5|67
22/7-20/8|34|1|77|258|201|374|32|1|54
20/8-18/9|38|7|72|298|203|456|33|1|49
18/9-17/10|41|4|77|301|206|475|38|2|46
18/10-15/11|39|2|80|297|203|400|36|2|46
15/11-14/12|43|6|83|300|201|417|37|4|43
14/12-12/1 2020|36|4|75|287|202|432|35|2|43
12/1-10/2|51|5|75|262|203|362|44|0|42
10/2-9/3|60|8|78|232|202|327|55|0|35
10/3-7/4|44|12|79|265|206|324|42|2|41
8/4-7/5|28|3|91|274|206|331|24|4|60
7/5-5/6|33|1|79|254|205|312|33|x|x
5/6-4/7|35|1|85|310|205|373|32|4|58
4/7-2-8|33|2|74|264|208|353|32|4|58


3 months added

KCross

Update to OP

% Wind vs Demand from 4-8am

Date|% Wind(4am-8am)|Low|High|gCO2/kW(4am-8am)|Low|High|Total Wind %(24hr)|Total Coal %(24hr)|Total Gas %(24hr)
28/7-26/8 2017|28|0|58|365|288|433|24
25/8-23/9|26|1|67|375|259|458|24
23/9-22/10|36|1|62|305|210|429|34
22/10-19/11|29|1|62|334|225|421|23
20/11-18/12|38|5|68|347|224|463|30|16|39
19/12-17/1 2018|46|3|75|331|209|472|39|13|35
17/1-15/2|50|4|75|295|215|500|42|12|33
15/2-16/3|35|1|71|371|215|522|33|20|39
16/3-14/4|29|0|71|373|211|513|26|17|43
14/4-13/5|32|2|82|291|247|336|32|9|45
13/5-11/6|14|1|62||||13|7|66
11/6-10/7|19|1|75||||18|8|65
10/7-8/8|18|1|67|316|212|372|17|6|68
8/8-5/9|30|1|73|319|224|447|26|6|59
6/9-5/10|34|5|74|332|208|440|32|5|49
5/10-3/11|37|1|76|323|204|437|32|0|52
3/11-2/12|51|18|75|276|201|390|44|0|45
2/12-31/12|47|3|80|266|203|393|40|0|42
31/12-29/1 2019|36|4|77|341|203|499|30|5|46
30/1-27/2|56|12|77|273|208|411|48|5|35
27/2-28/3|43|6|84|297|218|394|38|3|43
28/3-25/4|31|1|78|302|217|394|29|1|53
26/4-25/5|25|1|77|325|213|429|22|0|64
24/5-22/6|29|3|63|333|245|436|28|2|59
24/6-23/7|24|1|73|261|206|331|22|0.5|67
22/7-20/8|34|1|77|258|201|374|32|1|54
20/8-18/9|38|7|72|298|203|456|33|1|49
18/9-17/10|41|4|77|301|206|475|38|2|46
18/10-15/11|39|2|80|297|203|400|36|2|46
15/11-14/12|43|6|83|300|201|417|37|4|43
14/12-12/1 2020|36|4|75|287|202|432|35|2|43
12/1-10/2|51|5|75|262|203|362|44|0|42
10/2-9/3|60|8|78|232|202|327|55|0|35
10/3-7/4|44|12|79|265|206|324|42|2|41
8/4-7/5|28|3|91|274|206|331|24|4|60
7/5-5/6|33|1|79|254|205|312|33|x|x
5/6-4/7|35|1|85|310|205|373|32|4|58
4/7-2/8|33|2|74|264|208|353|32|4|58
31/8-29/9|36|0|75|273|206|387|31|4|56
29/9-28/10|48|9|80|282|201|394|42|4|44
28/10-26/11|51|4|77|280|204|409|47|3|37
26/11-25/12|41|1|84|291|200|427|38|4|47
25/12-23/1 2021|43|4|89|282|202|368|37|7|45


5 months added.

Coal making a bit of a comeback the last 28 days.... we havent seen it at that level since Jun 2018!
Coal is actually at 13% for the last 24hrs and 10% for the last week!

With turf power stations gone, that's no real surprise.

Kramer

KCross wrote: »

Coal is actually at 13% for the last 24hrs and 10% for the last week!

My understanding is coal is used more for baseload generation. Would it be fair to assume then, that with coal usage at 13% over a 24 hour period, usage, as a percentage overnight, would be higher?

In other words, over the last 24 hours, could up to 20% of the electricity we used to charge our zero emission vehicles, actually, be derived from burning coal?

That's mad Ted .

antoinolachtnai

Kramer wrote: »

My understanding is coal is used more for baseload generation. Would it be fair to assume then, that with coal usage at 13% over a 24 hour period, usage, as a percentage overnight, would be higher?

In other words, over the last 24 hours, could up to 20% of the electricity we used to charge our zero emission vehicles, actually, be derived from burning coal?

That's mad Ted .

I don’t think it’s true to say that moneypoint is being used for baseload generation. From the statistics above it is sometimes used, and sometimes not. It is used occasionally because it is economic to do so at a particular period, taking into account the high cost of carbon at present. This is going to happen, I suppose, when there isn’t much wind and the price of electricity in the daily auctions goes above the cost of coal production.

KCross

Update to OP

% Wind vs Demand from 4-8am

7 months added

Coal has made a resurgence! 😮

Our gCO2/kW has had a resultant increase with alot of this year at greater than 300gCO2/kW! 😒

KCross

Update to OP. I have forgotten to post this data for 12 months!

For the noob's on the forum this shows you what percentage of your electricity is renewable when you charge your EV at night time (2nd column)

% Wind vs Demand from 4-8am

No major changes in wind this year relative to same time last year.

A healthy enough 37% is wind across the night time over the last 12 months or so.

KCross

Update above to the OP, added last 3 months.

Wind has picked up alot in the last 2 months and coal has dipped down accordingly. Gas down 20% too!

the_amazing_raisin

It'd be amazing if we saw some proper dynamic charging responding to wind power availability

At the moment I'm charging my car once a week. But I could plug it in every night if there was some signal from the grid to my charger to start charging at certain times

I imagine when we're seeing 80% wind it's probably being curtailed a bit, because it can't go to 100% as I understand it

So dynamic charging would help better utilise wind resources and be better for the grid to stop it being overloaded with too much energy

ted1

https://www.boards.ie/discussion/comment/119933413#Comment_119933413

Yes, there were trials for 80% SNSP in October. The sync condenser in moneypoint and other planned ones aswell as the 100+ MW of BESS in ringsend will nss as he a big difference

KCross

Update to OP. Added the last 12 months

The last 6 months or so have been very good in terms of our gCO2/kW figure with the lowest ever figure (177) achieved over the last 30 days as well as the highest wind figure for a month (55%)

Our grid is definitely cleaning itself up in spite of various global issues with oil/gas.

If we could just remove that last ~5% of coal it would help things along even further.