Total storage increased 130 GWh over the last week. South Island controlled storage increased 3% to 2,606 GWh; South Island uncontrolled storage increased 9.3% to 583 GWh; with Taupo storage increasing 3.8% to 135 GWh.
Energy Trendz Daily 15 May 2019 (Interim)
By Ruth Heron, May 16, 2019
Spot price averages yesterday were $77 at Benmore, $81 at Haywards, $93 at Otahuhu.
Energy Trendz Daily 14 May 2019 (Interim)
By Ruth Heron, May 15, 2019
Prices at Benmore averaged $96.94 for the day.
Energy Trendz Daily 13 May 2019 (Interim)
By Ruth Heron, May 14, 2019
A spike in prices yesterday evening pushed up the daily averages.
Energy Trendz Daily 10 - 12 May 2019
By Ruth Heron, May 14, 2019
Prices dipped to $0.16 at Haywards on Sunday.
Energy Trendz Weekly 12 May 2019, Issue 1,148
By Ruth Heron, May 14, 2019
Average prices decreased by 2% at Benmore, 1% at Islington and Haywards, and decreased by 4% at Otahuhu over the last week. Total storage decreased to 3,194 GWh.
Energy Trendz Daily 9 May 2019 (Interim)
By Ruth Heron, May 10, 2019
Prices at Benmore averaged $92.78 for the day.
Hydro Watch - 9 May 2019, Issue 1,151
By Ruth Heron, May 9, 2019
Total storage decreased 117.3 GWh over the last week. South Island controlled storage decreased 1.9% to 2531 GWh; South Island uncontrolled storage decreased 8.4% to 534 GWh; with Taupo storage decreasing 12.4% to 130 GWh.
Energy Trendz Daily 8 May 2019 (Interim)
By Ruth Heron, May 9, 2019
Prices averaged $118 at Benmore, $126 at Haywards and $146 at Otahuhu.
Energy Trendz Daily 7 May 2019 (Interim)
By Ruth Heron, May 8, 2019
Averages yesterday were $112 at Benmore, $120 at Haywards and $137 at Otahuhu.
Energy Trendz Daily 6 May 2019 (Interim)
By Ruth Heron, May 7, 2019
Prices spiked to over $344 at Otahuhu yesterday.
Hydro Watch - 2 May 2019, Issue 1,150
By Ruth Heron, May 6, 2019
Total storage increased 184.7 GWh over the last week. South Island controlled storage increased 2.6% to 2,581 GWh; South Island uncontrolled storage increased 26% to 582 GWh; with Taupo storage remaining steady at 148 GWh.
Energy Trendz Weekly 5 May 2019, Issue 1,147
By Ruth Heron, May 6, 2019
Average prices increased by 40% at Benmore and Islington, and increased by 43% at Haywards and 48% at Otahuhu over the last week. Total Storage increased to 3,311 GWh.
Energy Trendz Daily 3 - 5 May 2019
By Ruth Heron, May 6, 2019
Prices at Haywards spiked at $297 on Friday, $157 on Saturday and $156 on Sunday.
Energy Trendz Daily 1 - 2 May 2019
By Ruth Heron, May 3, 2019
Prices dipped to $0.46 at Haywards yesterday.
The three most important issues for the 2020s - #1, Gas Disclosure
By Greg Sise, May 2, 2019
This is the first in a series of three posts on what I see as the most important issues for the electricity market, and by association the gas market, for the 2020s. This first post is actually a submission to the Gas Indsutry Company's recent consultation on information disclosure in the wholesale gas market. The GIC documents and all subsmissions can be found at
Energy Trendz Daily 30 April 2019 (Interim)
By Ruth Heron, May 1, 2019
Prices spiked to over $354 at Otahuhu yesterday evening.
Energy Trendz Daily 29 April 2019 (Interim)
By Ruth Heron, April 30, 2019
Spot prices yesterday ranged from $0.03 to $362 at Benmore and from $0.03 to $449 at Otahuhu.
Energy Trendz Weekly 28 April 2019, Issue 1,146
By Ruth Heron, April 29, 2019
Average prices decreased by 24% at Benmore, Islington, Haywards and Otahuhu over the last week. Total storage decreased to 3,127 GWh.
Energy Trendz Daily 26 - 28 April 2019
By Ruth Heron, April 29, 2019
Prices at Benmore dipped to $0.03 on Friday, $0.47 on Saturday, and $27 yesterday.
Hydro Watch - 25 April 2019, Issue 1,149
By Ruth Heron, April 29, 2019
Total storage decreased 65.6 GWh over the last week. South Island controlled storage decreased 1.2% to 2,517 GWh; South Island uncontrolled storage decreased 8.4% to 462 GWh; with Taupo storage increasing 5.8% to 148 GWh.
Energy Trendz Weekly 22 April 2019, Issue 1,145
By Ruth Heron, April 26, 2019
Average prices decreased by 5% at Benmore and Islington, decreased by 7% at Haywards, and 9% at Otahuhu over the last week. Total storage will be updated next Monday.
Energy Trendz Daily 18 - 25 April 2019
By Ruth Heron, April 26, 2019
Prices have been steady over the holiday period, with the 7-day average virtually the same as yesterday's - $78 at Benmore, $82 at Haywards, $91 at Otahuhu.
Hydro Watch - 18 April 2019, Issue 1,148
By Ruth Heron, April 18, 2019
Total storage decreased 42.5 GWh over the last week. South Island controlled storage increased 0.9% to 2,548 GWh; South Island uncontrolled storage decreased 9% to 504 GWh; with Taupo storage decreasing 9.5% to 140 GWh.
Energy Trendz Monthly - April 2019, Issue 121
By Ruth Heron, April 18, 2019
The index decreased this month on a volume of 33 contracts traded (14 CFD, 19 FPVV). The Energy Link indices exclude contracts from ASX, that are less than 6 months in duration, have volumes significantly less than disclosure rules require, are unverified or in dispute.
Energy Trendz Daily 17 April 2019 (Interim)
By Ruth Heron, April 18, 2019
Average prices yesterday were up slightly on the 7-day average, with $114.15 at Benmore, $122.65 at Haywards and $136.64 at Otahuhu.
Energy Trendz Daily 16 April 2019 (Interim)
By Ruth Heron, April 17, 2019
Prices peaked at over $235 at Otahuhu yesterday.
Energy Trendz Daily 15 April 2019 (Interim)
By Ruth Heron, April 16, 2019
Spot price averages exceeded $120/MWh yesterday.
Energy Trendz Weekly 14 April 2019, Issue 1,144
By Ruth Heron, April 15, 2019
Average prices decreased by 20% at Benmore and Islington, decreased by 18% at Haywards, and 15% at Otahuhu over the last week. Total Storage decreased to 3235 GWh.
Energy Trendz Daily 12 - 14 April 2019
By Ruth Heron, April 15, 2019
Prices at Otahuhu ranged from $1 - $157 on Friday, $56 - 264 on Saturday and $66 – 194 on Sunday.
Energy Trendz Daily 11 April 2019 (Interim)
By Ruth Heron, April 12, 2019
Spot prices spiked over $341 during an evening peak.
Energy Trendz Daily 10 April 2019 (Interim)
By Ruth Heron, April 11, 2019
Prices at Benmore averaged $96.55 for the day.
Hydro Watch - 11 April 2019, Issue 1,147
By Ruth Heron, April 11, 2019
Total storage decreased 40.8 GWh over the last week. South Island controlled storage decreased 0.1% to 2,526 GWh; South Island uncontrolled storage decreased 4.4% to 554 GWh; with Taupo storage decreasing 7.1% to 155 GWh.
Energy Trendz Daily 9 April 2019 (Provisional)
By Ruth Heron, April 10, 2019
Spot prices on Wednesday ranged from 51 to $163 at Benmore and from $94 to $194 at Otahuhu.
Energy Trendz Weekly 7 April 2019, Issue 1,143
By Ruth Heron, April 9, 2019
Total Storage decreased to 3235 GWh.
Energy Trendz Daily 8 April 2019 (Interim)
By Ruth Heron, April 9, 2019
Prices dipped below $9 at Haywards, Otahuhu and Benmore yesterday.
Energy Trendz Daily 5 - 7 April 2019
By Ruth Heron, April 8, 2019
Prices at Otahuhu spiked at $169 on Friday, $167 on Saturday and $209 on Sunday.
Energy Trendz Daily 4 April 2019 (Interim)
By Ruth Heron, April 5, 2019
Spot prices spiked over $309 during the morning peak.
Hydro Watch - 4 April 2019, Issue 1,146
By Ruth Heron, April 4, 2019
Total storage increased 194.3 GWh over the last week. South Island controlled storage increased 8.9% to 2,529 GWh; South Island uncontrolled storage decreased 2.8% to 580 GWh; with Taupo storage increasing 2.8% to 166 GWh
Energy Trendz Daily 3 April 2019 (Interim)
By Ruth Heron, April 4, 2019
Prices at Haywards averaged $107.95 for the day.