New Zealand electricity market dataset
Matylda Jabłońska
Lappeenranta University of Technology
Lappeenranta, 26.11.2008
New Zealand electricity marketDataset contents
Main data in figures
Agenda
1 New Zealand electricity marketIntroductionSupply grid
2 Dataset contentsCentralised DatasetMeteorological dataHydrological storage and Demand
3 Main data in figuresPrices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
IntroductionSupply grid
The electricity sector in New Zealand uses mainly renewable energysources such as hydropower, geothermal power and increasingly windenergy. The 70% share of renewable energy sources makes NewZealand one of the most sustainable countries in terms of energygeneration. Electricity demand is also still growing, by an average of2.4% per year since 1974 and 1.7% over 1997 - 2007.
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
IntroductionSupply grid
New Zealand suffers from a geographical imbalance betweenelectricity production and consumption. The most substantialelectricity generation (both existing and as remaining potential) islocated on the South Island and to a lesser degree in the centralNorth Island, while the main demand (which is continuing to grow)is in the northern North Island, particularly the Auckland Region.This requires electricity to be transmitted north through a powergrid which is reaching its capacity more often. While initiatives areunderway to build new transmission power lines, there is substantiallocal protest against these initiatives.
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
IntroductionSupply grid
The wholesale market for electricity is administered by M-co onbehalf of the market regulator, the Electricity Commission. Themain participants are seven generator/retailers who trade at 244nodes across the transmission grid. The generators offer their plantat grid injection points and retailers bid for electricity offtake at gridexit points. There is a Reconciliation Manager who reconciles allmetered quantities, a Pricing Manager (M-co) who determines theprices at each node, a Clearing and Settlement Manager (M-co) whopays generators for their generation at the market clearing price andinvoices all retailers for their offtake. Prices and quantities aredetermined half-hourly at each node. The transmission system isowned and operated by a state-owned enterprise, Transpower.
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
IntroductionSupply grid
DARGAVILLE
MAUNGATAPERE
KAIKOHE
Kensington(NAEPB)
MAUNGATUROTO
WELLSFORD
MANGERESOUTHDOWN
MANGERESOUTHDOWN
MOUNT ROSKILL
MOUNT ROSKILL
ALBANY
ALBANY
SILVERDALE
SILVERDALE
HEPBURN ROAD
HEPBURN ROAD
PAKURANGA
PAKURANGA
PENROSE
PENROSE
HENDERSON
HENDERSON
OTAHUHUA & B
OTAHUHUA & B
TAKANINI
TAKANINI
WIRI
WIRI
BOMBAY
BOMBAY
KOPUGLENBROOK
GLENBROOK
BREAM BAY
MARSDEN
KAITAIA
MATAHINA
MATAHINAMOUNT MAUNGANUI
MOUNT MAUNGANUI
TE MATAI
TE MATAI
WAIKINO
KAWERAU
KAWERAU
EDGECUMBE
EDGECUMBE
TAURANGA
TAURANGA
HINUERA
HINUERA
WAIHOU
ARATIATIAARATIATIA
TARUKENGA
TARUKENGA
OHAKURI
OHAKURIKINLEITH
LICHFIELD
KINLEITH
LICHFIELD
OHAAKI
OHAAKI ATIAMURI
ATIAMURI
WAIRAKEI
POIHIPIWAIRAKEIPOIHIPI
ARAPUNI
ARAPUNI
OWHATA
OWHATA
ROTORUA
ROTORUA
KARAPIRO
KARAPIRO
WHAKAMARU
WHAKAMARU
ONGARUE
HANGATIKI
TAUMARUNUI
MARAETAI
MARAETAI
WAIPAPA
WAIPAPA
TE AWAMUTU
TE AWAMUTU
WESTERN ROAD
WESTERN ROAD
HUNTLY
HUNTLY
CAMBRIDGE
CAMBRIDGE
HAMILTON
HAMILTON
CARRINGTON STREET
HAWERA
WAVERLEY BRUNSWICK
OHAKUNE
TANGIWAI
MATAROA
OPUNAKE
TOKAANUMOTUNUI
HUIRANGI
NATIONAL PARKRANGIPO
NEW PLYMOUTH
STRATFORD
WANGANUI
FERNHILL
WAIPAWA
DANNEVIRKE
MARTON
BUNNYTHORPE
WOODVILLELINTON
WHIRINAKI
WHAKATU
REDCLYFFE
TUAI
GISBORNE
WAIROA
TOKOMARU BAY
WAIOTAHI
TE KAHA
MASTERTON
GREYTOWN
GREYTOWN
UPPER HUTT
UPPER HUTTMELLING
MELLING
GRACEFIELD
GRACEFIELD
MANGAMAIRE
MANGAHAO
HAYWARDS
HAYWARDS
WILTON
WILTON
PARAPARAUMU
PARAPARAUMU
PAUATAHANUI
PAUATAHANUITAKAPU ROADNGAURANGA
TAKAPU ROADOTERANGA BAY
KAIWHARAWHARA
KAIWHARAWHARA
NGAURANGA(TransAlta)
OTERANGA BAY
CENTRAL PARK
CENTRAL PARK
FIGHTING BAY
Meremere
Meremere
South Makara
South Makara
MPE - KTA B
Paekakariki
Judgeford
NormandaleTe Hikowhenua
KOE - MPE A
KEN - MPE A
HEN - MDN A
HEN - MDN A
ALB - HEN A
ALB - HEN A
HEN - MPE A
HEN - MPE A HEN - OTA A
PAK - PEN AOTA - PEN AOTA - PAK A
ARI - PAK A(Underground cable2Km from Pakuranga)
(Underground cableat Kaiwharawhara end)
(Underground cable, 0.4Km section)
MER - TAK A
OTA - WKM C
OTA - WKM BOTA - WKM A
HAM - MER A
ARI - PAK A
ARI - PAK A
ARI - PAK A
HAI - MTM AHAI - MTM B
HAI - MTM A
HAI - MTM B
HAI - MTM B
HAI - TMI A
HAI - TMI A
EDG - TRK A
EDG - TRK A
HAI - TRK A
HAI - TRK A
OKE - TMI A
OKE - TMI A
EDG - KAW B
EDG - KAW B
EDG - WAI AEDG - WAI B
TKH - WAI A
OHK - EDG A
OHK - EDG A
GIS - TOB A
GIS - TUI A
TUI - BPE A
RDF - WHI A
FHL - DEV A
FHL - WDV B
FHL - RDF B
FHL - WDV B
EDG - KAW A
EDG - KAW ATRK - DEV A
ATI - TRK A
ATI - TRK A
ROT - TRK A
ARI - EDG B
ARI - EDG A
OWH DEV. A
TRK - DEV B
HAI - TGA A
HAI - TGA A
ARI - HAM A
ARI - HAM A
ARI - HAM A
ARI - HAM B
ARI - HAM B
ARI - HAM B
HIN - KPO A
ARI - EDG BARI - EDG A
KIN - DEV ALCH - KIN ALCH - KIN B
MTI - WKM B
MTI - WPA A
MTI - WKM A
WRK - WKM A
WRK - WKM A
WRK - WKM A
ARA - WRK A
OKI - WRK AOKI - WRK A OKI - WRK B (33 kV)
OKI - WRK B (33 kV)
WRK - WHI A
WRK - WHI A
TUI - WRA A
FrasertownRDF - TUI A
RDF - WTU A
FHL - WDV A
FHL - RDF A
FHL - WDV A
FHL - WDV AFHL - WDV B
MGM - WDV A
BPE - WDV B
MGM - MST A
MST - UHT AMST - UHT A
MST - UHT A
BPE - WIL A
BPE - WIL A
BPE - HAY BBPE - HAY A
HAY - MLG AHAY - MLG B
HAY - UHT A
OTB - HAY A
KHD - TKR A (33 kV)
KWA - WIL A
CPK - WIL B
OTB - SMK A (11 kV)
CPK - WIL A
GFD - HAY A
BPE - WRK A
MNI - DEV A
BPE - WRK A
RPO - DEV A
TNG - TEE A
BRK - SFD BBRK - SFD A
BRK - BPE A
WRK - WKM A
HIN - KPO A
HIN - KPO A
HAM - DEV A
HAM - DEV A
HAM - WHU A
HAM - WHU A
WHU - WKO A
KPU - WKO A
HLY - DEV A
PEN - ROS A
ALB - SVL A
ALB - SVL A
HEN - MPE A
MDN - MPE A
BRB - DEV A
DAR - MPE A
HEN - MPE A
HEN - MPE A
HEN - HEP A
HEN - MDN A
Huapai
HEN - MDN A
Huapai
HEN - ROS A
HEP - ROS A
OTA - PEN BOTA - PEN C
MNG - ROS A
MNG OTA- A
BOB - OTA A
GLN - DEV A
BOB - MER A
HLY - OTA A
HAM - MER B
HLY - TMN A
HLY - TMN A
HAM - MER B
KPO - TMU A
KPO - TMU A
KAW - DEV A
KAW - MAT APoike
Hairini
Rangitoto
HairiniPoike
Okere
Okere
ARI - ONG A
RTO - HTI A
ARI - ONG B
BPE - ONG A
BPE - ONG A
BPE - WGN B
BPE - MHO A
BPE - HAY A
BPE - WIL A
BPE - WIL A
MHO - PKK B
MHO - PKK BMHO - PKK A
MHO - PKK A
HAY - JFD A
PKK - TKR A
PKK - TKR AHAY - TKR A
TKR - WIL A
BPE - WIL A
THW - DEV A
BPE - MHO B
BPE - HAY B
BPE - WGN B
BPE - ONG A
WGN - SFD A
WGN - SFD A
WGN - SFD A
CST - SFD ANPL - SFD A
OPK - SFD A
BPE - ONG A
SFD - TMN A
CST - HUI AHUI - MNI A
CST - NPL A
NPK - RTR A
WRK - WKM BWRK - WKM B
BPE - WRK A
BPE - WKM ABPE - WKM A
BPE - WKM A
BPE - WKM BBPE - WKM B
BPE - WKM B
HAM - KPO A
HAM - KPO A
HAM - KPO A
HAM - KPO A
ALB - HPI A
ALB - HPI A
DAR - MPE B
Coastline and lakes of New Zealand data: Department of Survey and Land Information Map Licence 1993/83: Crown Copyright ReservedArtwork and electronic production: Toolbox Imaging Limited, Wellington.© Copyright 2002 All rights reserved. Transpower New Zealand Limited.
System as at June 2002Produced by IT&T Information Services
TRANSPOWE R TRANS MISS ION NETWO RK : NO R TH I S LAND
Hydro Power Stations
Thermal Power Stations
***
Planned for complete or partial dismantling.Under Construction.
Transmission Lines
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesSubmarine Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
350 kVHVDC
220 kVAC
110 kVAC
50/66kV AC
KEYSubstations
This is Construction Voltage.Operating Voltage may be less.
Note:
. . .
OTERANGA BAY
BLENHEIM
FIGHTING BAYSTOKE
MOTUEKACOBB
UPPER TAKAKA
MOTUPIPI
ARGYLE
KIKIWA
MURCHISON
INANGAHUA
WESTPORT
WAIMANGAROA
GREYMOUTH(Westpower) DOBSON
ARAHURA
OTIRA
ARTHUR'S PASS
CASTLE HILL
CASTLE HILL
COLERIDGE
COLERIDGE
KAIKOURA
CULVERDEN
WAIPARA
ASHLEY
ASHLEY
HORORATA
HORORATA
BROMLEY
BROMLEY
TEMUKAALBURY
TIMARU
ASHBURTON
ASHBURTON
TEKAPO A
TEKAPO B
TWIZELOHAU A
OHAU BOHAU C
SOUTHBROOK
SOUTHBROOK
ISLINGTON
ISLINGTON
KAIAPOI
KAIAPOI
PAPANUI
PAPANUI
ADDINGTON
ADDINGTON
SPRINGSTON
SPRINGSTON
KUMARA (Westpower)
WAITAKI
BENMORE
AVIEMORE
MANAPOURI
GORE
SOUTH DUNEDIN
ROXBURGHPALMERSTON
NASEBY
LIVINGSTONE
STUDHOLME
HALFWAY BUSHTHREE MILE HILL
OAMARU
NORTHMAKAREWA
CROMWELL
CLYDE
FRANKTON
BERWICK
TIWAI
EDENDALE
BRYDONE
INVERCARGILL
BALCLUTHA
Bog Roy
INV - MAN A
INV - MAN A
INV - ROX B
ROX - TWZ A
ROX - TWZ A
OHA - TWZ A
ROX - ISL A
AVI - LIV A
AVI - BEN A
BEN - TWZ A
TWZ - DEV A
TKB - DEV A
BEN - BGR A ROX - ISL A
ROX - ISL A
ROX - ISL A
BEN - ISL A
BEN - ISL A
HWB - OAM A
GNY - OAM B
AHA - DOB A
Blackwater
Kawaka
IGH - KIK B
IGH - WMG A
KIK - STK B
BLN - STK A
MPI - UTK A
COB - UTK A
COB - UTK B
STK - UTK B
ISL - KIK B
IGH - WPT B
WMG - WPT A
HOR - ISL E
BEN - HAY A
BEN - HAY A
BEN - HAY A
BEN - HAY A
ISL - KIK A
ISL - KIK A
ISL - DEV A
ISL - PAP AISL - PAP B
ISL - KIK B
ISL - KIK BASY DEV B
COL - BKD D
COL - BKD D
Brackendale
Brackendale
TKA - TIM A
TKA - TIM A
ASH - TIM B
NMA - TMH A
GOR - HWB A
GOR - HWB A
INV - TWI A
MAN - TWI A
MAN - TWI A
GOR - INV A
BDE - DEV A
BAL - DEV A
GOR - HWB A
HWB - SDN A
GOR - ROX A
HWB - ROX A
ROX - TMH A
ROX - ISL A
CML - FKN A
HWB - OAM B
GNY - OAM A
BEN - TWZ A
GNY - TIM A
GNY - TIM A
Glenavy
KUM - KWA A(Leased to Transpower by Westpower)
AHA - OTI A
DOB - BWR A
BWR - IGH A
ISL - KIK A
CUL - KKA A
ISL - KIK B
SBK - WPR A
ASY - DEV AASY - DEV B
KAI - SBK A
SBK - WPR A
ISL - SBK A
HOR - ISL E
BKD - HOR A
ISL -SPN A
ISL - SBK A
ADD - ISL AADD - ISL B
ISL - SPN A
BRY - ISL A
ASY - DEV A
KAI - SBK A
BLN - KIK A BEN - HAY A
KIK - STK A
STK - UTK A
STK - UTK A
IGH - KIK A
IGH - KIK A
COL - OTI A
COL - OTI A
CHH - TWZ A
CHH - TWZ A
COL - OTI A
COL - OTI A
BKD - HOR A
ASH - TIM A
TIM - DEV A
GNY - WTK A
BEN -ISL A
BEN -HAY ABEN - TWZ A
BEN - ISL A
INV - ROX A
GOR - INV A
NMA - TMH A
System as at June 2002Produced by IT&T Information Services
TRANSPOWER TRANSMISS ION NETWORK : SOUTH I S L AN D
Hydro Power Stations
Thermal Power Stations
***
Planned for complete or partial dismantling.Under Construction.
Transmission Lines
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesSubmarine Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
Double Circuit TowersSingle Circuit TowersDouble Circuit PolesSingle Circuit PolesUnderground Cable
350 kVHVDC
220 kVAC
110 kVAC
50/66kV AC
KEYSubstations
This is Construction Voltage.Operating Voltage may be less.
Note:
Coastline and lakes of New Zealand data: Department of Survey and Land Information Map Licence 1993/83: Crown Copyright ReservedArtwork and electronic production: Toolbox Imaging Limited, Wellington.© Copyright 2002 All rights reserved. Transpower New Zealand Limited.
GRY - KUM A(Leased to Transpower by Westpower)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Centralised DatasetMeteorological dataHydrological storage and Demand
Centralised Dataset April 2008 / October 2008
Half-hourly dataMeter dataBids and offersPricesBinding constraints
Hydrology dataNetwork configuration data
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Centralised DatasetMeteorological dataHydrological storage and Demand
Meteorological data(http://www.niwa.co.nz/ncc/data –> CliFlo web access service)
Daily and Hourly Observations (land stations):Combined ObservationsWindPrecipitationTemperature and HumiditySunshine and RadiationWeatherPressureCloudsEvaporation / soil moisture
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Centralised DatasetMeteorological dataHydrological storage and Demand
Additional series available (confidential):
Hydrological storageCentralised demand
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400
500
NZ electricity prices in 6 nodes from North Island [$/MWh]
Haywards (NI)Huntly (NI)Otahuhu (NI)Stratford (NI)Tuai (NI)Whakamaru (NI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400
500
NZ electricity prices in 5 nodes from South Island [$/MWh]
Stoke (SI)Benmore (SI)Halfway Bush (SI)Invercargill (SI)Islington (SI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
100 200 300 400
100
200
300
400
500
(SI) Benmore
(SI)
Hal
fway
Bus
h
100 200 300 400
100
200
300
400
(SI) Benmore
(NI)
Hay
war
ds
100 200 300 400
100
200
300
(SI) Benmore
(NI)
Hun
tly
100 200 300 400
100
200
300
400
500
(SI) Benmore
(SI)
Inve
rcar
gill
100 200 300 400
100
200
300
400
500
(SI) Benmore
(SI)
Islin
gton
100 200 300 400
100
200
300
400
(SI) Benmore
(NI)
Ota
huhu
100 200 300 400
100
200
300
400
500
(SI) Benmore
(SI)
Sto
ke
100 200 300 400
100
200
300
(SI) Benmore
(NI)
Str
atfo
rd
100 200 300 400
100
200
300
(SI) Benmore
(NI)
Tua
i
100 200 300 400
100
200
300
(SI) Benmore
(NI)
Wha
kam
aru
Figure: Price scatter plots.
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
100 200 300 4000
0.005
0.01
(SI) Benmore
100 200 300 400 5000
0.005
0.01
(SI) Halfway Bush
100 200 300 4000
0.005
0.01
(NI) Haywards
100 200 3000
0.005
0.01
0.015
(NI) Huntly
100 200 300 400 5000
0.005
0.01
(SI) Invercargill
100 200 300 400 5000
0.005
0.01
(SI) Islington
100 200 300 4000
0.005
0.01
0.015
(NI) Otahuhu
100 200 300 400 5000
0.005
0.01
(SI) Stoke
100 200 3000
0.005
0.01
0.015
(NI) Stratford
100 200 3000
0.005
0.01
(NI) Tuai
100 200 3000
0.005
0.01
0.015
(NI) Whakamaru
Figure: Electricity price normalized histograms.
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan08
50
100
150
200
250
300
350
400
NZ electricity prices in 11 nodes [$/MWh]
Benmore (SI)Halfway Bush (SI)Haywards (NI)Huntly (NI)Invercargill (SI)Islington (SI)Otahuhu (NI)Stoke (SI)Stratford (NI)Tuai (NI)Whakamaru (NI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400Spikes of electricity prices in 6 nodes from North Island [$/MWh]
Haywards (NI)Huntly (NI)Otahuhu (NI)Stratford (NI)Tuai (NI)Whakamaru (NI)
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400
500
Spikes of electricity prices in 5 nodes from South Island [$/MWh]
Stoke (SI)Benmore (SI)Halfway Bush (SI)Invercargill (SI)Islington (SI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400
Spikes of electricity prices in 6 nodes from North Island [$/MWh]
Haywards (NI)Huntly (NI)Otahuhu (NI)Stratford (NI)Tuai (NI)Whakamaru (NI)
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
100
200
300
400
500
Spikes of electricity prices in 5 nodes from South Island [$/MWh]
Stoke (SI)Benmore (SI)Halfway Bush (SI)Invercargill (SI)Islington (SI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
−4 −2 0 20
1
2
−4 −2 0 20
1
2
−2 0 20
1
2
−2 0 20
1
2
−4 −2 0 20
1
2
−4 −2 0 20
1
2
−2 0 20
1
2
−4 −2 0 20
1
2
−2 0 20
2
−2 0 20
2
−2 0 20
1
2
Figure: Histograms of returns for prices with spikes removed.Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan08
BenmoreHalfway Bush
HaywardsHuntly
InvercargillIslingtonOtahuhu
StokeStratford
TuaiWhakamaru
Spikes of electricity prices in 6 nodes from North Island [$/MWh]
Haywards (NI)Huntly (NI)Otahuhu (NI)Stratford (NI)Tuai (NI)Whakamaru (NI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan08
BenmoreHalfway Bush
HaywardsHuntly
InvercargillIslingtonOtahuhu
StokeStratford
TuaiWhakamaru
Spikes of electricity prices in 5 nodes from South Island [$/MWh]
Stoke (SI)Benmore (SI)Halfway Bush (SI)Invercargill (SI)Islington (SI)
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 2000
1500
2000
2500
3000
3500
4000
hydro storage [GWh]
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 50 100 150 200 250 300 350 400−0.5
0
0.5
1ACF for hydro storage
0 10 20 30 40 50−1
−0.5
0
0.5
1PACF for hydro storage
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 2000
50
100
150
200
250
300
350
400
450
Benmore prices and cetralized hydro storage
Benmorehydro storage
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan08
50
100
150
200
250
300
350
400
NZ electricity prices in 11 nodes [$/MWh]
Benmore (SI)Halfway Bush (SI)Haywards (NI)Huntly (NI)Invercargill (SI)Islington (SI)Otahuhu (NI)Stoke (SI)Stratford (NI)Tuai (NI)Whakamaru (NI)hydro storage
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 2000
−5
0
5
regression model for price returns based on hydro storage
storage diffprice diff predprice diff orig
500 1000 1500 2000
−5
0
5
model residuals
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 2000
−0.15
−0.1
−0.05
0
0.05
0.1
regression model for price log−returns based on hydro storage
storage diffprice diff predprice diff orig
500 1000 1500 2000
−0.1
0
0.1
model residuals
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 1000 20000
50
100
(SI) Benmore
0 1000 20000
50
100
(SI) Halfway Bush
0 1000 20000
50
100
(NI) Haywards
0 1000 20000
50
100
(NI) Huntly
0 1000 20000
50
100
(SI) Invercargill
0 1000 20000
50
100
(SI) Islington
0 1000 20000
50
100
(NI) Otahuhu
0 1000 20000
50
100
(SI) Stoke
0 1000 20000
50
100
(NI) Stratford
0 1000 20000
50
100
(NI) Tuai
0 1000 20000
50
100
(NI) Whakamaru
Figure: Precipitation in 11 nodesMatylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 2000
0.7
0.8
0.9
1
1.1
1.2
1.3
x 105 daily centralized demand [MWh]
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 50 100 150 200 250 300 350 400−0.5
0
0.5
1ACF for demand
0 10 20 30 40 50−0.5
0
0.5
1PACF for demand
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
Jan02 Jan03 Jan04 Jan05 Jan06 Jan07 Jan080
50
100
150
200
250
300
350
400
450NZ electricity prices in 6 nodes from North Island [$/MWh]
Haywards (NI)Huntly (NI)Otahuhu (NI)Stratford (NI)Tuai (NI)Whakamaru (NI)demad
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 500 1000 1500 2000 25000
1
2
3
4
5
6x 10
7 Power generations from 4 example stations
OtahuhuWhakamaruHuntlyStratford
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
500 1000 1500 20000
2
4
6
8
10
12
x 104 total NZ electricity generation and demand
generationdemand
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 500 1000 1500 2000 25000
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2x 10
4 Otahuhu power bids and offers
power bidpower offer
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 500 1000 1500 2000 25000
2000
4000
6000
8000
10000
12000Whakamaru power bids and offers
power bidpower offer
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 500 1000 1500 2000 25000
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2x 10
4 Otahuhu generations and offers
generationpower offer
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
0 500 1000 1500 2000 25000
2000
4000
6000
8000
10000
12000Whakamaru generations and offers
generationpower offer
Matylda Jabłońska New Zealand electricity market
New Zealand electricity marketDataset contents
Main data in figures
Prices and price spikesHydrological storageElectricity demandElectricity generationPower offers and bids
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Matylda Jabłońska New Zealand electricity market
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