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News: Energy Trendz Weekly, Blog


Energy Trendz Weekly 24 January 2021, Issue 1,237

By Ruth McKinlay, January 25, 2021

Average prices decreased by 43.8% at Benmore, decreased by 43.8% at Islington, decreased by 44.9% at Haywards and decreased by 45.5% at Otahuhu over the last week.  Total Storage increased to 2,607 GWh. NI storage decreased by 7 %  to 443 GWh while SI storage increased by 8% to 2,164 GWh.


Tiwai Remains Another ‘X’ Years

By Greg Sise, January 21, 2021

The Tiwai Pt aluminium smelter has received a stay of execution, with the news last week that Meridian Energy and the smelter’s majority owner, Rio Tinto, reached agreement on 13th January to amend their existing agreement so that its termination date is now 31st December 2024, and not August 2021.


Energy Link Contract Indexes January 2021, Issue 142

By Greg Sise, January 21, 2021

The FPVV sub-index went up this month, but the CFD sub-index went down. The net result was the main index more-or-less went sideways, increasing by just over 1% to 8.9 c/kWh.


Energy Trendz Weekly 17 January 2021, Issue 1,236

By Ruth McKinlay, January 18, 2021

Average prices increased by 77.3% at Benmore, increased by 79.2% at Islington, increased by 75.9% at Haywards and increased by 71.1% at Otahuhu over the last week. Total Storage decreased to 2,483 GWh. NI storage decreased by 2 % to 474 GWh while SI storage decreased by 1% to 2,009 GWh.


Energy Trendz Weekly 27 December 2020 - 10 January 2021

By Ruth McKinlay, January 13, 2021

Average prices increased by 36% at Benmore, increased by 35% at Islington, increased by 34% at Haywards and increased by 33% at Otahuhu over the last week.  Total Storage increased to 2,502 GWh. NI storage increased by 6% to 482 GWh while SI storage increased by 3% to 2,020 GWh.


Energy Trendz Weekly 20 December 2020, Issue 1,232

By Ruth McKinlay, December 21, 2020

Average prices decreased by 9.7% at Benmore, decreased by 9.7% at Islington, decreased by 9.5% at Haywards and decreased by 11.8% at Otahuhu over the last week. Total Storage decreased to 2,476 GWh. NI storage remained at 469 GWh while SI storage decreased by 2% to 2,007 GWh.


Energy Trendz Weekly 13 December 2020, Issue 1,231

By Ruth McKinlay, December 14, 2020

Average prices increased by 36.7% at Benmore, increased by 38.2% at Islington, increased by 32.4% at Haywards and increased by 31.4% at Otahuhu over the last week.  Total Storage increased to 2,525 GWh. NI storage decreased by 5 %  to 469 GWh while SI storage increased by 2% to 2,056 GWh.


Energy Trendz Weekly 6 December 2020, Issue 1,230

By Ruth McKinlay, December 7, 2020

Average prices increased by 3% at  Benmore, Haywards and Otahuhu over the last week, and increased by 4% at Islington. Total Storage decreased to 2,517 GWh.


Energy Trendz Weekly 29 November 2020, Issue 1,229

By Ruth McKinlay, November 30, 2020

Average prices increased by 8% at all of Benmore, Islington, Haywards and Otahuhu over the last week. Total Storage decreased to 2,599 GWh. NI storage increased by 2% to 465 GWh while SI storage decreased by 5% to 2,134 GWh.


Energy Trendz Weekly 22 November 2020, Issue 1,228

By Ruth McKinlay, November 23, 2020

Average prices increased by 47% at Benmore and Islington, increased by 49% at Haywards and increased by 48% at Otahuhu over the last week. Total Storage decreased to 2,709 GWh. NI storage increased by 3% to 456 GWh while SI storage decreased by 2% to 2,253 GWh.


Energy Trendz Weekly 15 November 2020, Issue 1,227

By Ruth McKinlay, November 16, 2020

Average prices decreased by 25% at Benmore, decreased by 26% at Islington, and decreased by 27% at Haywards and Otahuhu over the last week.  Total Storage increased to 2,733 GWh. NI storage increased by 19% to 443 GWh while SI storage increased by 6% to 2,290 GWh.


Energy Trendz Weekly 8 November 2020, Issue 1,226

By Ruth McKinlay, November 9, 2020

Average prices decreased by 11% at all of Benmore, Islington, Haywards and Otahuhu over the last week.   Total Storage increased to 2,533 GWh. NI storage increased by 8% to 372 GWh while SI storage increased by 10% to 2,161 GWh.


Energy Trendz Weekly 31 October 2020, Issue 1,225

By Ruth McKinlay, November 2, 2020

Average prices decreased by 23% at all of Benmore, Islington, Haywards and Otahuhu over the last week. Total Storage  increased to 2,316 GWh.


Energy Trendz Weekly 26 October 2020, Issue 1,224

By Ruth McKinlay, October 27, 2020

Average prices decreased by 9% at Benmore and Islington, decreased by 8% at Haywards and decreased by 7% at Otahuhu over the last week. Total Storage decreased to 2,144 GWh. NI storage increased by 10% to 319 GWh while SI storage decreased by 5% to 1,825 GWh.


Energy Trendz Weekly 18 October 2020, Issue 1,223

By Ruth McKinlay, October 19, 2020

Average prices decreased by 5% at Benmore and Haywards, and decreased by 4% at Islington and Otahuhu over the last week.  Total Storage increased to 2,214 GWh. NI storage increased by 7% to 290 GWh while SI storage increased by 4% to 1,924 GWh.


Energy Trendz Weekly 11 October 2020, Issue 1,222

By Ruth McKinlay, October 12, 2020

Average prices increased by 2% at Benmore and Islington, 1% at Haywards, with negligible change at Otahuhu over the last week. Total Storage increased to 2,120 GWh. NI storage increased by 7% to 271 GWh while SI storage increased by 6% to 1,848 GWh.


Energy Trendz Weekly 4 October 2020, Issue 1,221

By Michael Cawte, October 5, 2020

Average prices increased by 27% at Benmore, 26% at Islington, 28% at Haywards, and by 25% at Otahuhu over the last week. Total Storage increased to 1,994 GWh. NI storage increased by 67% to 255 GWh while SI storage increased by 15% to 1,740 GWh.


Energy Trendz Weekly 27 September 2020, Issue 1,220

By Ruth McKinlay, September 28, 2020

Average prices decreased by 11% at Benmore, Islington, and Haywards and decreased by 9% at Otahuhu over the last week. Total Storage increased to 1,664 GWh. NI storage increased by 9% to 152 GWh while SI storage increased by 18% to 1,512 GWh.


Energy Trendz Weekly 20 September 2020, Issue 1,219

By Ruth McKinlay, September 21, 2020

Average prices decreased by 29% at Benmore, decreased by  30% at Islington, decreased by 28% at Haywards and decreased by 30% at Otahuhu over the last week.  Total Storage increased to 1421 GWh. NI storage decreased by 13 %  to 139 GWh while SI storage increased by 21% to 1,282 GWh.


Energy Trendz Weekly 13 September 2020, Issue 1,218

By Ruth McKinlay, September 14, 2020

 Average prices increased by 2% at Benmore, and increased by 1% at Islington, Haywards and Otahuhu over the last week. Total Storage decreased to 1,220 GWh. NI storage decreased by 14 % to 160 GWh while SI storage decreased by 3% to 1,060 GWh.


Energy Trendz Weekly 6 September 2020, Issue 1,217

By Ruth McKinlay, September 7, 2020

Average prices increased by 51% at Benmore , 49% at Islington,  50% at Haywards, and increased by 48% at Otahuhu over the last week.  Total Storage increased to 1,275 GWh. NI storage increased by 3% to 186 GWh while SI storage increased by 2% to 1,089 GWh.


Energy Trendz Weekly 30 August 2020, Issue 1,216

By Ruth McKinlay, August 31, 2020

Average prices decreased by 15% at Benmore, decreased by 14% at Islington, and decreased by 17% at Haywards and Otahuhu over the last week. Total Storage decreased to 1,251 GWh. NI storage increased by 27% to 180 GWh while SI storage decreased by 11% to 1,071 GWh.


Energy Trendz Weekly 23 August 2020, Issue 1,215

By Ruth McKinlay, August 24, 2020

Average prices decreased by 1% at Benmore and Islington, decreased by 2% at Haywards and 5% Otahuhu over the last week. Total Storage decreased to 1,340 GWh. NI storage increased by 19% to 142 GWh while SI storage decreased by 2% to 1,198 GWh.


Energy Trendz Weekly 16 August 2020, Issue 1,214

By Ruth McKinlay, August 17, 2020

Over the week, average prices increased by 25% at each of Benmore, Islington, Haywards and Otahuhu. Total Storage decreased to 1,597 GWh. NI storage decreased by 5 % to 175 GWh while SI storage decreased by 7% to 1,421 GWh.


Energy Trendz Weekly 9 August 2020, Issue 1,213

By Ruth McKinlay, August 10, 2020

Average prices fell over the week by 24% at all of Benmore, Islington, Haywards and Otahuhu. Total Storage decreased to 1,717 GWh. NI storage decreased by 12 % to 184 GWh while SI storage had a minimal decrease to 1,532 GWh.


Energy Trendz Weekly 3 August 2020, Issue 1,212

By Ruth McKinlay, August 4, 2020

Average prices increased by 4% at Benmore and Islington, increased by 5% at Haywards and increased by 6% at Otahuhu over the last week. Total Storage decreased to 1,746 GWh. NI storage decreased by 7 %  to 209 GWh while SI storage decreased by 7% to 1,537 GWh.


Energy Trendz Weekly 26 July 2020, Issue 1,211

By Ruth McKinlay, July 27, 2020

Average prices decreased by 14% at Benmore and Islington, decreased by 13.% at Haywards and Otahuhu over the last week. Total Storage decreased to 1,870 GWh. NI storage increased by 12% to 225 GWh while SI storage decreased by 2% to 1,645 GWh.


Energy Trendz Weekly 19 July 2020, Issue 1,210

By Ruth McKinlay, July 20, 2020

Average prices decreased by 10% at Benmore and Islington, decreased by 11% at Haywards and decreased by 13% at Otahuhu over the last week. Total Storage decreased to 1,880 GWh. NI storage increased by 5% to 200 GWh while SI storage decreased by 5% to 1,680 GWh.


Energy Trendz Weekly 12 July 2020, Issue 1,209

By Ruth McKinlay, July 13, 2020

Average prices decreased by 37% at Benmore and Islington, decreased by 36% at Haywards and decreased by 34% at Otahuhu over the last week. Total Storage decreased to 1,967 GWh. NI storage increased by 1% to 191 GWh while SI storage decreased by 1% to 1,776 GWh.


Tiwai Closure – Its Impact on the Electricity Sector and on Prices

By Greg Sise, July 13, 2020

Rio Tinto, the majority owner of the Tiwai Pt aluminium smelter, announced last Thursday, 9th July, that it has terminated its electricity contracts with Meridian Energy and that it will close the smelter by August 2021.  This will have a profound impact on the electricity sector which will be felt for years to co

Electricity market


Tiwai Closure – Unanswered Questions

By Greg Sise, July 13, 2020

Rio Tinto, the majority owner of the Tiwai Pt aluminium smelter, announced last Thursday, 9th July, that it has terminated its electricity contract with Meridian Energy and that it will close the smelter by August 2021.  The announcement is short on details, and many questions remain unanswered.

Electricity market


Energy Trendz Weekly 5 July 2020, Issue 1,208

By Michael Cawte, July 6, 2020

Average prices increased by 36% at Benmore, 37% at Islington and Haywards, and increased by 39% at Otahuhu over the last week. Total Storage decreased to 1979 GWh. NI storage increased by 20% to 188 GWh while SI storage decreased by 8% to 1790 GWh.


Energy Trendz Weekly 28 June 2020, Issue 1,207

By Ruth McKinlay, June 29, 2020

Average prices decreased by 18% at Benmore, Islington and Haywards, and decreased by 19% at Otahuhu over the last week. Total Storage decreased to 2113 GWh. NI storage increased by 53% to 157 GWh while SI storage decreased by 6% to 1,956 GWh.


Energy Trendz Weekly 21 June 2020, Issue 1,206

By Ruth McKinlay, June 22, 2020

Average prices increased by 22% at Benmore, increased by 21% at Islington and Haywards, and by 22% at Otahuhu over the last week. Total Storage decreased to 2,183 GWh. NI storage increased by 13% to 103 GWh while SI storage decreased by 2% to 2,080 GWh.


Energy Trendz Weekly 14 June 2020, Issue 1,205

By Ruth McKinlay, June 15, 2020

Average prices increased by 51% at Benmore, increased by 52% at Islington, increased by 50% at Haywards and by 44% at Otahuhu over the last week. Total Storage decreased to 2,243 GWh. NI storage increased by 9% to 118 GWh while SI storage decreased by 7% to 2,125 GWh.


Energy Trendz Weekly 7 June 2020, Issue 1,204

By Ruth McKinlay, June 8, 2020

Average prices decreased by 34% at Benmore and Islington, and by 36% at Haywards and Otahuhu over the last week. Total Storage decreased to 2,395 GWh. NI storage decreased by 4% to 108 GWh while SI storage decreased by 9% to 2,286 GWh.


Energy Trendz Weekly 1 June 2020, Issue 1,203

By Ruth McKinlay, June 2, 2020

Average prices decreased by 2% at Benmore and Islington, decreased by 3% at Haywards, and decreased by 5% at Otahuhu over the last week. Total Storage decreased to 2,635 GWh. NI storage decreased by 1 %  to 113 GWh while SI storage decreased by 5% to 2,521 GWh.


Energy Trendz Weekly 24 May 2020, Issue 1,202

By Ruth McKinlay, May 25, 2020

Average prices increased by 77% at Benmore, increased by 78% at Islington, and increased by 70% at both Haywards and Otahuhu over the last week. Total Storage decreased to 2,777 GWh. NI storage decreased by 15 %  to 114 GWh while SI storage decreased by 7% to 2,662 GWh.


Energy Trendz Weekly 17 May 2020, Issue 1,201

By Ruth McKinlay, May 18, 2020

Average prices increased by 47% at Benmore and Islington, and increased by 52% at Haywards and Otahuhu over the last week. Total Storage decreased to 2,991 GWh. NI storage decreased by 7 % to 135 GWh while SI storage decreased by 2% to 2,857 GWh.


Energy Trendz Weekly 10 May 2020, Issue 1,200

By Ruth McKinlay, May 11, 2020

Average prices increased by 20% at Benmore and Islington, increased by 23% at Haywards and increased by 24% at Otahuhu over the last week.  Total Storage increased to 3,063 GWh. NI storage increased by 16% to 144 GWh while SI storage increased by 5% to 2,918 GWh.

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