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Energy Link Limited 15/01/2018
Prices: Key (Week Difference)
>= 10%
14-Jan-18 7-Jan-18 Change 14-Jan-18 7-Jan-18 Change >= 5%
Average Prices 99.04 76.15 30% 105.63 81.29 30% >= 0%
Ratio Day/Night 1.34 1.22 10% 1.35 1.23 9% <= -5%
Ratio Week/Other Day 1.08 0.99 10% 1.09 0.99 10% <= -10%
14-Jan-18 7-Jan-18 Change 14-Jan-18 7-Jan-18 Change
Average Prices 94.81 75.15 26% 94.49 75.40 25%
Ratio Day/Night 1.33 1.29 3% 1.37 1.35 2%
Ratio Week/Other Day 0.99 0.98 1% 0.93 1.00 -7%
14-Jan-18 7-Jan-18 Change 14-Jan-18 7-Jan-18 Change
Average differences -4.55 -0.75 503% -4.23 -1.01 321%
All Prices are Final Prices
Price Highlights:
Period
31
15
Maximum Ben_Hay differential 05
Maximum NI reserve price 25
Please note: Any Provisional Prices are not included in Price Highlights
Subscribe at www.energylink.co.nz/publications
Issue 1079Week ending 14 January 2018
South Island
North Island
BEN
Price Differences
ISL
HAY OTA
OTA-BEN HAY-BEN
Location
Minimum nodal price
Friday, 12 January 2018
Tuesday, 9 January 2018
$83.42
$70.02
Maximum nodal price Kinleith
Otahuhu
Price $/MWh
$287.86
$0.00
Day
Saturday, 13 January 2018
Wednesday, 10 January 2018
A weekly review of New Zealand electricity markets compiled by Energy Link Ltd
0
50
100
150
200
250
14-Oct 28-Oct 11-Nov 25-Nov 9-Dec 23-Dec 6-Jan
$/MWh
Benmore, Islington, Haywards and Otahuhu Daily Average Prices
Benmore 2017/18 Islington 2017/18 Haywards 2017/18 Otahuhu 2017/18Benmore 2016/17 Islington 2016/17 Haywards 2016/17 Otahuhu 2016/17
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
Energy Link Limited 15/01/2018
Average Wholesale Spot Prices
Date Benmore ($/MWh) Islington ($/MWh) Haywards ($/MWh) Otahuhu ($/MWh)
Day Night Day Night Day Night Day Night
14/01/2018 105.32 73.33 111.78 77.92 107.47 74.88 113.26 76.49
13/01/2018 97.98 81.25 104.03 86.51 99.43 84.45 104.66 85.76
12/01/2018 117.58 102.71 125.48 109.24 110.75 82.47 110.14 79.82
11/01/2018 122.65 93.85 130.79 100.19 120.42 96.49 116.92 91.04
10/01/2018 116.15 93.19 124.30 99.51 102.58 90.38 101.47 85.86
9/01/2018 99.52 63.91 106.88 68.06 101.74 61.91 100.24 59.53
8/01/2018 98.82 55.62 105.45 59.44 81.15 53.31 80.79 50.92
Note: Night: 00:00 – 08:00 and Day 08:00 – 24:00
Benmore Movement Islington Movement Haywards Movement Otahuhu Movement
122.25 - 132.03 - 122.26 - 120.68 -
87.60 - 93.46 - 84.98 - 84.95 -
4 Week Moving Average Price 93.01 -10.4% 99.61 -10.8% 91.43 -11.6% 89.91 -12.0%
99.04 30.1% 105.63 29.9% 94.81 26.2% 94.49 25.3%
Weekday Day Average Price 110.94 42.9% 106.18 15.0% 103.33 31.8% 101.91 26.4%
Weekday Night Average Price 81.85 14.9% 73.28 -12.1% 76.91 16.3% 73.43 13.7%
Weekend Day Average Price 101.65 21.4% 114.75 32.3% 103.45 24.1% 108.96 29.8%
Weekend Night Average Price 77.29 23.8% 97.88 29.5% 79.67 31.3% 81.12 38.6%
1.34 9.8% 1.35 9.4% 1.33 3.2% 1.37 1.8%
Weekday - Weekend Differential 1.08 9.9% 1.09 9.9% 0.99 0.9% 0.93 -7.1%
Note: Movement represents difference from last week.
Storage: (as at last Thursday)
Total Storage increased to 2393 GWh.
NI storage increased by 22% to 451 GWh while SI storage decreased by 2% to 1943 GWh.
Indicator ($/MWh)
Average December 17 Price
Weekly Average Price
Day - Night Differential
Average January 18 Price
0
400
800
1200
1600
2000
2400
2800
3200
3600
Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
GW
h
New ZealandStorage Levels
South Island: 2017/18
South Island: 2016/17
North Island: 2017/18
North Island: 2016/17
SI Last 5 Year Ave.
NI Last 5 Year Ave
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
Energy Link Limited 15/01/2018
Generation:
Average Generation Market Share1
Contact
22% (25%)1 Generation market share figures are based on SCADA data. The number in brackets represents the generation market share % from the previous week.
MRPL Genesis Meridian Trustpower Other
28% (29%) 3% (3%) 6% (5%)18% (18%) 23% (19%)
NI Hydo
SI Hydro
Thermal
Co-GenerationGeothermal
Wind
New Zealand Total
-50
0
50
100
150
200
250
MW
Movement in Average GenerationWeek Ending 14 January 18
0
200
400
600
800
1000
Waikato Huntly (excl.e3p)
StratfordPeaker
Tongariro TCC McKeePeaker
Waitaki Clutha Manapouri Whirinaki e3p Wind Geothermal(Total)
MW
Average Weekly Generation18 December 17 to 14 January 18
18 Dec 17 to 24 Dec 17 25 Dec 17 to 31 Dec 17 01 Jan 18 to 07 Jan 18 08 Jan 18 to 14 Jan 18
Mighty River Genesis Contact Genesis Contact Nova Energy Meridian Contact Meridian Genesis
NI Hydo15%
SI Hydro36%
Thermal24%
Co-Generation3%
Geothermal19%
Wind3%
New Zealand GenerationWeek Ending 14 January 18
** The breakdown of NZ generation is based on SCADA generation data and does not include all NZ generation
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
Energy Link Limited 15/01/2018
Demand data based on un-reconciled SCADA data.
0
20
40
60
80
100
120
14-Oct-17 28-Oct-17 11-Nov-17 25-Nov-17 9-Dec-17 23-Dec-17 6-Jan-18
GWh
Aggregate Daily Demand7 Day Moving Average
SI Demand NZ Demand NI Demand
-400
-300
-200
-100
0
100
200
300
400
500
600
14-Oct-17 28-Oct-17 11-Nov-17 25-Nov-17 9-Dec-17 23-Dec-17 6-Jan-18
MW
Daily Average HVDC Transfer
HVDC North HVDC South Net Northward Transfer - 7-Day average
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
Energy Link Limited 15/01/2018
ASX Electricity Futures
The Australian Securities Exchange (ASX) listed Base Load Electricity Futures, Strip Futures and Calendar year
Strip Options for two grid reference points (Otahuhu and Benmore) in the New Zealand electricity market in July
2009. The ASX New Zealand Electricity Futures contracts are cash settled using the arithmetic average of half-
hourly prices at the designated node over the period of a calendar quarter.
The two charts below display the price movements of the front quarter futures contract during the current quarter and
for the four quarters prior to the current quarter. Also shown is the volume of contracts traded, the relevant spot price
and the spot average price over the quarter during the time when each contract was the front quarter contract.
The chart to the right shows the most recent
transactions for all currently traded futures
contracts at both the
BEN & OTA nodes.
For comparison these
prices are mapped against the prices for
the same contracts four
weeks prior to the current Market Review.
0
20
40
60
80
100
120
140
160
180
200
-40
10
60
110
160
Co
ntr
acts
Tra
de
d
$ p
er
MW
OTA Front Quarter Contracts
Volume Traded 1/03/2018 1/12/2017 1/09/2017 1/06/2017 1/03/2017 OTA Spot Spot Average over QTR
QTR 1-2017 QTR 2-2017 QTR 3-2017 QTR 4-2017 QTR 1-2018
0
20
40
60
80
100
120
140
160
180
200
-40
10
60
110
160
Co
ntr
acts
Tra
de
d
$ p
er
MW
BEN Front Quarter Contracts
Volume Traded 1/03/2018 1/12/2017 1/09/2017 1/06/2017 1/03/2017 BEN Spot Spot Average over QTR
QTR 1-2017 QTR 2-2017 QTR 3-2017 QTR 4-2017 QTR 1-2018
40
50
60
70
80
90
100
$/MWh
Contract Date
ASX Electricity Futures Price MovementsUpdated (12 Jan 2018)
BEN_12 Jan 18_Quarterly BEN_13 Dec 17_QuarterlyOTA_12 Jan 18_Quarterly OTA_13 Dec 17_Quarterly
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
Energy Link Limited 15/01/2018
Carbon Dioxide Emissions
The chart below shows the estimated Carbon Dioxide (CO2) emissions for New Zealand's major thermal
power stations. The estimates are based on weekly generation output and assumptions on each plant's thermal
efficiency.
Note: Since 22 Feb 2016, Geothermal plant is now also included in the total carbon emissions.
0
50
100
150
200
250
300
350
400
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
180,000
t CO2 / GWhEstimated Weekly CO2 Emissions
Geothermal Co-Generation Huntly e3p OTAB TCC
Southdown Huntly Gas Huntly p40 Whirinaki Stratford Peaker
McKee Peaker Huntly Coal tonnes CO2/GWh
t CO2
Ph (03) 479 2475
Email: Mark.Nelson@energylink.co.nz Energy Trendz WeeklyConsultancy House
Dunedin
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