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.
Filter this topic showing only the reply marked as answer View this topic in a long page with up to 500 replies per page Create new topic
1 | ... | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | ... | 112
2811 posts

Uber Geek
+1 received by user: 1062

Subscriber

  Reply # 1764051 13-Apr-2017 20:54
Send private message quote this post

Super cheap spot prices over whole country right now. Around 0.5c per unit. After 9 pm ill only be paying approx 6c per unit including all lines fees and gst.





1944 posts

Uber Geek
+1 received by user: 304

Trusted

  Reply # 1773995 2-May-2017 07:57
Send private message quote this post

Price warning from the app...spot prices high across the country...Flick's website is down :(


13974 posts

Uber Geek
+1 received by user: 2488

Trusted
Subscriber

  Reply # 1773998 2-May-2017 08:03
Send private message quote this post

Flick website works fine for me, with power at 18c/kwh in Wellington and possibly still climbing. A spike on the coldest morning of the year so far isn't unexpected, but I'd have thought they'd have bought more generation online.





AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


152 posts

Master Geek
+1 received by user: 30


  Reply # 1773999 2-May-2017 08:12
Send private message quote this post

timmmay:

 

Flick website works fine for me, with power at 18c/kwh in Wellington and possibly still climbing. A spike on the coldest morning of the year so far isn't unexpected, but I'd have thought they'd have bought more generation online.

 

 

 

 

Given the low lake levels in the south island we're missing a decent chunk of generation as we are in a "dry sequence". However, TCC and at least one Rankine unit are running. Also it looks like one of the Stratford Peakers is also running.

 

So the driver is soft wind + low lakes from the big lakes in the South Island really.


13974 posts

Uber Geek
+1 received by user: 2488

Trusted
Subscriber

  Reply # 1774002 2-May-2017 08:17
Send private message quote this post

I see the lake levels in the south are a bit lower than average, but the north is better than average. Still, with winter coming, you'd think that'd increase before too long.

 

Edit - and now the Flick website is down for me. 502 "bad gateway" suggests their web server is available but the app server is overloaded.





AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


152 posts

Master Geek
+1 received by user: 30


  Reply # 1774005 2-May-2017 08:26
Send private message quote this post

You are right, SI Hydro is above average for this time of year, however that's controlled storage, which essentially only accounts for the Waitaki scheme (Pukaki, Tekapo) and this is making up the bulk of SI Hydro generation at the moment (I suspect it is running close to capacity)

 

Contact's Clutha System (600 MW) and Meridian's Manapouri scheme (800 MW) are uncontrolled and have not received a significant rainfall in over 12 weeks, meaning they are both very empty.  For example, if you look on the Meridian Hydro page here you can see Te Anau is actually below the main range by about 20 cms, a very significant amount. Contact don't make that information available on their website, but Wakatipu, Hawea etc are all empty and the only discharge really is for environmental reasons (e.g. minimum discharge in resource consent).

 

Taupo conversely is very full.

 

The actual inflow season for hydro lakes in the South Island is actually November / December (which is why you sometimes see spill) as a lot of rain that falls in the Autumn / Winter actually falls as snow (I believe it was down to 800 metres on the weekend).

 

But the driver is from Clutha and Manapouri where there is almost 1400 MW of capacity, you'd likely see around 400 MW of generation at the moment due to the low lake levels.

 

 

 

I'd recommend using https://www2.electricityinfo.co.nz over the Flick app, it might give more useful information (e.g. 5 minute and NRS schedule data)


13974 posts

Uber Geek
+1 received by user: 2488

Trusted
Subscriber

  Reply # 1774008 2-May-2017 08:31
Send private message quote this post

I wonder if this means we're going to get more spikes or have higher prices than average for the next little while. Things have been pretty flat, but the start of the cold weather is when the higher peak time prices usually start.





AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


83 posts

Master Geek
+1 received by user: 9


  Reply # 1774014 2-May-2017 08:46
Send private message quote this post

Before Flick went down I got a screenshot of 1047.2c/unit, but nothing remotely that high was showing on http://www.em6live.co.nz/ or https://www2.electricityinfo.co.nz/.

What gives?

66 posts

Master Geek
+1 received by user: 5


  Reply # 1774093 2-May-2017 10:47
Send private message quote this post

voy1d:

Taupo conversely is very full.




Ahh, so this is why power is currently cheaper in the north island?

34 posts

Geek
+1 received by user: 4


  Reply # 1775419 4-May-2017 10:39
Send private message quote this post

pogo: Before Flick went down I got a screenshot of 1047.2c/unit, but nothing remotely that high was showing on http://www.em6live.co.nz/ or https://www2.electricityinfo.co.nz/.

What gives?

 

 

 

2 days later and the actual price is on Flick's usage graph.  Looks like it didn't go any higher than about 34 cents. Unsure how the app got it so drastically wrong, we stopped making out morning coffee!!!


83 posts

Master Geek
+1 received by user: 9


  Reply # 1775422 4-May-2017 10:49
Send private message quote this post

Looks like it was only the forecast prices that went crazy (the NRS is the forecast and the RTP is the 5 min price):

https://www2.electricityinfo.co.nz/prices

So I assume that Flick reacts to the forecast price. What worries me is that this happened at about 7:30am but I got a notification at 8:15ish. Unless there was another event at 8:15?


152 posts

Master Geek
+1 received by user: 30


  Reply # 1775982 4-May-2017 23:36
Send private message quote this post

The reason for that was a spring washer in that schedule - which later washed out. The cause of this was derived from the outage on the ASB_TIM_TWZ_2 circuit, which left only two remaining circuits between TWZ and ISL and thus there was no solve for getting sufficient load into the ISL node (at least in the market model)

 

I suspect looking at this that Orion were load managing, because the constraint is specifically a STABILITY constraint.


13974 posts

Uber Geek
+1 received by user: 2488

Trusted
Subscriber

  Reply # 1776032 5-May-2017 08:23
Send private message quote this post

voy1d:

 

The reason for that was a spring washer in that schedule - which later washed out. The cause of this was derived from the outage on the ASB_TIM_TWZ_2 circuit, which left only two remaining circuits between TWZ and ISL and thus there was no solve for getting sufficient load into the ISL node (at least in the market model)

 

I suspect looking at this that Orion were load managing, because the constraint is specifically a STABILITY constraint.

 

 

 

 

Spring washer?

 





AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


171 posts

Master Geek
+1 received by user: 18


  Reply # 1776045 5-May-2017 09:12
One person supports this post
Send private message quote this post

timmmay:

 

 

 

 

 

Spring washer?

 

 

 

 

 

Yup! Exactly that. It gives a very good visual image of the discontinuity jump of the price at one point in the circuit.

 

Here's a video with more info. I skipped the 3 backstory ones, as the last will be sufficient for most people to get the idea... but if you want to really understand it, click back to the first video on the right.

 

https://www.youtube.com/watch?v=Yp2a7KY9pNY&list=PLXUccGn4ptEO5e0-MV37_vWPWerhB8yak&index=4


13974 posts

Uber Geek
+1 received by user: 2488

Trusted
Subscriber

  Reply # 1776050 5-May-2017 09:27
Send private message quote this post

It seems like the whole pricing system is more complex than it really needs to be.





AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


1 | ... | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | ... | 112
Filter this topic showing only the reply marked as answer 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 »

Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07



Geekzone Live »

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



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.