We don't know whether the most recent response to this request contains information or not – if you are Nicky McLean please sign in and let everyone know.

Please supply omitted half-hourly data for April 2026

Nicky McLean made this Official Information request to Electricity Authority

This request has an unknown status. We're waiting for Nicky McLean to read recent responses and update the status.

From: Nicky McLean

Dear Electricity Authority,
Via your organisation's web site https://www.emi.ea.govt.nz/Wholesale/Dat... some seven sub-directories give links to files containing data on the half-hourly generation and consumption of electricity at many places across the country, all grouped into monthly files. These data files contain hundreds of data series, with identifying name codes for each.

But suddenly, the data files for April no longer contained data for series that had been supplied in March, and for many months previously:

File 202604_Reactive_power.csv omitted data for names
LTN2201.MRPL.GG.MRPL.kVArh.N.F (e.g. March 1-17)
LTN2201.MRPL.GG.MRPL.kVArh.N.I (e.g. March 18-31)

File 202604_Grid_export.csv omitted data for names
STK0331.NELS.GN.TPNZ.kWh.X.F
STK0331.TASM.GN.TPNZ.kVArh.N.F

File 202604_Embedded_generation.csv omitted data for names
ATI2201.MRPL.HNET.DEF.X
MAT1101.BOPD.HNET.DEF.X
WKM2201.TUAR.HNET.DEF.X
STK0661.TASM.CNIR.COBB.I
STK0661.TASM.CNIR.COBB.X
MHO0331.ELEC.KING.MHO1.I
MHO0331.ELEC.KING.MHO1.X
And by contrast, some three dozen new data series appeared, with names from MHO0331.ELEC.CTCS.1.X to MHO0331.ELEC.WISE.1.X, all featuring the new name code part of 1 (the digit one, not I nor l) of unknown significance. For instance, guesswork: MHO0331.ELEC.KING.1.I and MHO0331.ELEC.KING.1.X might be related to the last two in the above list, but, all their values for April are zero.

My request is that you please supply the data for the omitted data series.

The presumption is that the associated entities continue to operate rather than vanish with March, and so data for their operation should continue to be supplied. It would be good to have definite identification of these entities, thereby facilitating searches of news media for reports of changes, for example. If there are changes.
Alternatively, data for them are being supplied, but under different name codes and possibly in different data files. If so, what might they be?
Or, data for those omitted series might be assimilated into the data being supplied for other series: if so, which?

Yours faithfully,
Nicky McLean

Link to this

From: OIA
Electricity Authority

Kia ora,
Thank you for your email. 

If you are making a request under the Official Information Act 1982, you
can expect to receive an official acknowledgement email within 5 working
days. This is an automated email and not an official acknowledgement. If
you do not hear from us within 5 working days, please contact us by
calling +64 4 460 8860.

If this is a general enquiry, please email [email address].

Ngā mihi,

Electricity Authority
Te Mana Hiko
 
Level 7, AON Centre, 1 Willis Street
PO Box 10041, Wellington 6143, New Zealand
[1]www.ea.govt.nz
"The information contained in this transmission is confidential. It is
intended for the named addressee only. If you are not the named addressee
you may not copy, distribute or take any action in reliance upon this
transmission."

References

Visible links
1. http://www.ea.govt.nz/

Link to this

From: OIA
Electricity Authority


Attachment image001.png
50K Download


Kia ora Nicky

 

Thank you for your request, received by the Electricity Authority on 1
June 2026, under the Official Information Act 1982, for the following
information:

 

"please supply the data for the omitted data series. [Metered data
datasets from March 2026]

 

The presumption is that the associated entities continue to operate rather
than vanish with March, and so data for their operation should continue to
be supplied. It would be good to have definite identification of these
entities, thereby facilitating searches of news media for reports of
changes, for example. If there are changes.

   Alternatively, data for them are being supplied, but under different
name codes and possibly in different data files. If so, what might they
be?

   Or, data for those omitted series might be assimilated into the data
being supplied  for other series: if so, which?

We will endeavour to respond to your request as soon as possible and in
any event no later than 29 June 2026, being 20 working days after the day
your request was received. 

 

If we are unable to respond to your request by then, we will notify you of
an extension of that timeframe.

 

If you have any queries, please feel free to contact me by emailing
[1][Electricity Authority request email].  

 

Ngā mihi nui,

 

Simon Skews-Poole ([2]he/him)
Senior Ministerial Advisor

 

[3][IMG]

 

Level 7, AON Centre, 1 Willis Street
PO Box 10041, Wellington 6143, New Zealand
[4]www.ea.govt.nz

 

 

-----Original Message-----
From: Nicky McLean <[FOI #34829 email]>
Sent: Monday, 1 June 2026 10:30 pm
To: OIA <[Electricity Authority request email]>
Subject: [External] Official Information request - Please supply omitted
half-hourly data for April 2026

 

[You don't often get email from
[5][FOI #34829 email]. Learn why this is
important at [6]https://aka.ms/LearnAboutSenderIdentific... ]

 

Please be careful with this email as it has bypassed our usual Junk Email
checks

 

Dear Electricity Authority,

   Via your organisation's web site
[7]https://aus01.safelinks.protection.outlo...
some seven sub-directories give links to files containing data on the
half-hourly generation and consumption of electricity at many places
across the country, all grouped into monthly files. These data files
contain hundreds of data series, with identifying name codes for each.

 

But suddenly, the data files for April no longer contained data for series
that had been supplied in March, and for many months previously:

 

File 202604_Reactive_power.csv omitted data for names

LTN2201.MRPL.GG.MRPL.kVArh.N.F   (e.g. March 1-17)

LTN2201.MRPL.GG.MRPL.kVArh.N.I     (e.g. March 18-31)

 

File 202604_Grid_export.csv omitted data for names
STK0331.NELS.GN.TPNZ.kWh.X.F STK0331.TASM.GN.TPNZ.kVArh.N.F

 

File 202604_Embedded_generation.csv omitted data for names
ATI2201.MRPL.HNET.DEF.X MAT1101.BOPD.HNET.DEF.X WKM2201.TUAR.HNET.DEF.X
STK0661.TASM.CNIR.COBB.I STK0661.TASM.CNIR.COBB.X MHO0331.ELEC.KING.MHO1.I
MHO0331.ELEC.KING.MHO1.X And by contrast, some three dozen new data series
appeared, with names from MHO0331.ELEC.CTCS.1.X to MHO0331.ELEC.WISE.1.X,
all featuring the new name code part of 1 (the digit one, not I nor l) of
unknown significance. For instance, guesswork: MHO0331.ELEC.KING.1.I and
MHO0331.ELEC.KING.1.X might be related to the last two in the above list,
but, all their values for April are zero.

 

My request is that you please supply the data for the omitted data series.

 

The presumption is that the associated entities continue to operate rather
than vanish with March, and so data for their operation should continue to
be supplied. It would be good to have definite identification of these
entities, thereby facilitating searches of news media for reports of
changes, for example. If there are changes.

   Alternatively, data for them are being supplied, but under different
name codes and possibly in different data files. If so, what might they
be?

   Or, data for those omitted series might be assimilated into the data
being supplied  for other series: if so, which?

 

Yours faithfully,

Nicky McLean

 

-------------------------------------------------------------------

 

This is an Official Information request made via the FYI website.

 

Please use this email address for all replies to this request:

[8][FOI #34829 email]

 

Is [9][Electricity Authority request email] the wrong address for Official Information requests
to Electricity Authority? If so, please contact us using this form:

[10]https://aus01.safelinks.protection.outlo...

 

Disclaimer: This message and any reply that you make will be published on
the internet. Our privacy and copyright policies:

[11]https://aus01.safelinks.protection.outlo...

 

If you find this service useful as an Official Information officer, please
ask your web manager to link to us from your organisation's OIA or LGOIMA
page.

 

 

-------------------------------------------------------------------

 

"The information contained in this transmission is confidential. It is
intended for the named addressee only. If you are not the named addressee
you may not copy, distribute or take any action in reliance upon this
transmission."

References

Visible links
1. mailto:[Electricity Authority request email]
2. https://www.publicservice.govt.nz/guidan...
3. http://www.ea.govt.nz/
4. http://www.ea.govt.nz/
5. mailto:[FOI #34829 email]
6. https://aka.ms/LearnAboutSenderIdentific...
7. https://www.emi.ea.govt.nz/Wholesale/Dat...
8. mailto:[FOI #34829 email]
9. mailto:[Electricity Authority request email]
10. https://fyi.org.nz/change_request/new?bo...
11. https://fyi.org.nz/help/officers

hide quoted sections

Link to this

We don't know whether the most recent response to this request contains information or not – if you are Nicky McLean please sign in and let everyone know.

Things to do with this request

Anyone:
Electricity Authority only: