Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3 | 4
14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1543417 28-Apr-2016 14:15
Send private message

Has anyone else noticed that the floating market electricity off peak prices are higher than usual some days, recently? eg on the 26th we see what's pretty normal, much lower prices overnight. On the 24th overnight prices were much the same as peak times.

 

If it was consistent I'd think it was to do with water storage levels, but it goes back and forward depending on the day.


244 posts

Master Geek
+1 received by user: 58


  Reply # 1543833 29-Apr-2016 09:04
Send private message

 Might be maintenance on some generators causing a reduction in supply?


 
 
 
 


14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1543990 29-Apr-2016 12:36
Send private message

Yeah maybe.


3608 posts

Uber Geek
+1 received by user: 1545

Subscriber

  Reply # 1544513 30-Apr-2016 15:03
Send private message

It is much worse in Auckland. Often spot prices are lower during the evening peak. Compared to around 10pm. It is because it is so dry at the moment. They have to restrict hydro output during off peak to save the water for use during peak periods. There is often a lot of late night coal generation as well.





53 posts

Master Geek
+1 received by user: 5


  Reply # 1545408 2-May-2016 15:10
Send private message

Actually, South Island lake storage and inflows are normal, despite the dry conditions nearly everywhere else! Spot price blips under present conditions are often caused by inaccurately low forecasts of demand. It hasn't got quite cold enough that everyone has shifted to winter mode, where they turn on the heaters morning and night. Until that happens, the gentailers can get caught out offering too little generation at times.


3608 posts

Uber Geek
+1 received by user: 1545

Subscriber

  Reply # 1546398 3-May-2016 23:11
Send private message

This I what I see happening.

 

Click to see full size

 

High coal and gas fired generation. And really low north island hydro. Agree that south island hydro is normal. And we are lucky that there is alot of wind generation at the moment. (over 400MW) This was at 22.30, so well past the evening peak usage time.






k14

587 posts

Ultimate Geek
+1 received by user: 76


  Reply # 1546444 4-May-2016 08:05
Send private message

timmmay:

 

Has anyone else noticed that the floating market electricity off peak prices are higher than usual some days, recently? eg on the 26th we see what's pretty normal, much lower prices overnight. On the 24th overnight prices were much the same as peak times.

 

If it was consistent I'd think it was to do with water storage levels, but it goes back and forward depending on the day.

 

 

Most likely answer is North Island wind generation. With around 400MW installed capacity it makes up a rather high percentage of the currently available generation. So, if the wind is blowing the price is low, if its not, the price is high. The wind doesn't know when its day time or night time (compared to all other major forms of generation in NZ) so it can create quite a bit of volatility in the market.

 

The other factors that can effect the generation is what Huntly or the two CCGT's in the North Island are doing. If any one of them is on/off, the minimum load they run is quite significant (only down to roughly half load) which means they can artificially depress the overnight price (because they can't back off enough). But then when they shut down, there is a much higher proportion of generation that can truly mimic the load profile (mainly hydro) thus the spot price has less fluctuations.


14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1546451 4-May-2016 08:26
Send private message

Interesting thoughts all. Supply and demand at work, basically. It's just unpredictable. I'm getting a timer put on the hot water next week so it heats at night (took ages to arrange), this reduces the benefit of this, though in winter it will reduce evening peak usage for hot water.


57 posts

Master Geek
+1 received by user: 8
Inactive user


  Reply # 1552364 13-May-2016 20:11
Send private message

I got this email from nodewatch today, 4 days AFTER the price spike occurred ....

Hi,

At 17:45 on 09/05/2016, the 5-minute electricity price at TKR0331 rose above
$140.00/MWh (from $118.61 to $142.84/MWh)

14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1552399 13-May-2016 21:07
Send private message

Good point. I'll email the nodewatch guy.


144 posts

Master Geek
+1 received by user: 18

Trusted

  Reply # 1553345 15-May-2016 21:56
Send private message

Hi guys, just applied to join Flick thanks to conversations in this forum.

 

 

 

I had an idea, I don't know the easist way to get the alerts as to the current price, but you could use this and IFTTT to change the colour of the light depending on what the current spot price was


14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1553371 16-May-2016 06:50
Send private message

Interesting idea. Not sure I'd want the light in my room to change color, but a small LED or indicator would be handy. Of course the Flick app gives you alerts as well now, or at least it's meant to. Plus there's a third party email alerting system you can sign up to as well, nodewatch.


144 posts

Master Geek
+1 received by user: 18

Trusted

  Reply # 1553476 16-May-2016 11:03
Send private message

I wasn't necessarily meaning all lights, but just one light, seems easier then having your phone buzz all the time.   I'd rather have a notification system that wasn't tied to one device so that everyone that lives at my house can see it.


57 posts

Master Geek
+1 received by user: 8
Inactive user


  Reply # 1553710 16-May-2016 20:42
Send private message

"Flick app gives you alerts" - is that a tui billboard saying ? Yeah, right....

I do get flick app alerts regularly - telling me interesting stuff about c02 emissions. In fact one came in while I was writing this post. What is annoying to the extreme, is that the app DOESNT send notifications when the price goes out of bounds, and that is the compelling reason I subscribe to them. I did get a nodewatch email today ( and in a very reasonable timeframe) when the Wellington price shot up,just after 1800, but NOTHING at all on the subject from flick.

I intend to launch another customer feedback case this evening , just as I did in an identical case a few months ago.

Come on Flick, get it sorted!


14651 posts

Uber Geek
+1 received by user: 2725

Trusted
Subscriber

  Reply # 1553711 16-May-2016 20:49
Send private message

Agree, nothing from Flick today and prices were high.


1 | 2 | 3 | 4
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

NZ and France seek to end use of social media for acts of terrorism
Posted 24-Apr-2019 12:13


Intel introduces the 9th Gen Intel Core mobile processors
Posted 24-Apr-2019 12:03


Spark partners with OPPO to bring new AX5s smartphone to New Zealand
Posted 24-Apr-2019 09:54


Orcon announces new always-on internet service for Small Business
Posted 18-Apr-2019 10:19


Spark Sport prices for Rugby World Cup 2019 announced
Posted 16-Apr-2019 07:58


2degrees launches new unlimited mobile plan
Posted 15-Apr-2019 09:35


Redgate brings together major industry speakers for SQL in the City Summits
Posted 13-Apr-2019 12:35


Exported honey authenticated on Blockchain
Posted 10-Apr-2019 21:19


HPE and Nutanix partner to deliver hybrid cloud as a service
Posted 10-Apr-2019 21:12


Southern Cross and ASN sign contract for Southern Cross NEXT
Posted 10-Apr-2019 21:09


Data security top New Zealand consumer priority when choosing a bank
Posted 10-Apr-2019 21:07


Samsung announces first 8K screens to hit New Zealand
Posted 10-Apr-2019 21:03


New cyber-protection and insurance product for businesses launched in APAC
Posted 10-Apr-2019 20:59


Kiwis ensure streaming is never interrupted by opting for uncapped broadband plans
Posted 7-Apr-2019 09:05


DHL Express introduces new MyDHL+ online portal to make shipping easier
Posted 7-Apr-2019 08:51



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.