{"generated":"2026-10-11T18:30:54.825Z","node":"ISL2201","source":"EMI, provided by the Electricity Authority (New Zealand), CC-BY 4.0","caveat":"Wholesale spot prices at the Islington grid exit point, what the market settled between generators and buyers, before lines, metering and retail margin. Nothing here is what a household pays.","latest":{"date":"2026-10-11","interim":true,"periods":[[1,66.57],[2,43.52],[3,32.89],[4,37.48],[5,40.59],[6,35.24],[7,31.15],[8,31.2],[9,31.16],[10,33.55],[11,31.44],[12,31.44],[13,31.57],[14,32.09],[15,31.57],[16,32.89],[17,31.53],[18,31.59],[19,31.57],[20,31.61],[21,31.53],[22,20.6],[23,7.53],[24,4.02],[25,10.76],[26,0.02],[27,0.02],[28,0.02],[29,0.02],[30,0.02],[31,0.02],[32,0.28],[33,26.95],[34,19.79],[35,29.62],[36,31.61],[37,31.71],[38,31.67],[39,31.68],[40,31.69],[41,31.78],[42,31.8],[43,35.8],[44,51.06],[45,38.4],[46,37.56],[47,54.67],[48,42.78]],"fileDate":"2026-10-11"},"week":[{"date":"2026-10-04","avg":20.15,"max":52.55,"min":0.02,"tp":[[1,21.21],[2,21.06],[3,21.04],[4,21.06],[5,23.55],[6,23.1],[7,21.96],[8,20.8],[9,20.81],[10,20.08],[11,11.83],[12,20.95],[13,15.86],[14,21.05],[15,21.08],[16,21.17],[17,21.04],[18,20.2],[19,20.43],[20,19.58],[21,5.39],[22,0.02],[23,0.02],[24,0.02],[25,2.54],[26,0.41],[27,0.02],[28,0.02],[29,0.02],[30,0.02],[31,0.02],[32,1.3],[33,1.48],[34,11.95],[35,18.14],[36,20.69],[37,21.04],[38,20.99],[39,21.11],[40,21.19],[41,50.12],[42,52.5],[43,51.17],[44,49.45],[45,52.5],[46,52.5],[47,52.55],[48,52.28]]},{"date":"2026-10-05","avg":25.16,"max":87.52,"min":0.02,"tp":[[1,37.05],[2,44.47],[3,51.65],[4,49.57],[5,50.42],[6,43.17],[7,42.94],[8,42.25],[9,50.91],[10,43.64],[11,45.67],[12,28.4],[13,53.35],[14,69.8],[15,83.73],[16,87.52],[17,85.18],[18,25.11],[19,14.82],[20,15.48],[21,6.16],[22,2.65],[23,1.99],[24,1.2],[25,0.02],[26,0.02],[27,0.02],[28,1.14],[29,0.02],[30,0.02],[31,0.02],[32,0.02],[33,0.02],[34,11.48],[35,13.92],[36,14.75],[37,0.02],[38,0.02],[39,0.02],[40,0.02],[41,7.74],[42,15.02],[43,11.59],[44,5.16],[45,21.88],[46,29.12],[47,53.19],[48,45.46]]},{"date":"2026-10-06","avg":23.08,"max":49.45,"min":3.88,"tp":[[1,39.51],[2,39.61],[3,44.56],[4,37.03],[5,33.23],[6,34.74],[7,35.42],[8,35.34],[9,32.5],[10,30],[11,21.88],[12,20.08],[13,16.07],[14,21.73],[15,21.76],[16,21.76],[17,20.61],[18,3.88],[19,8.57],[20,21.49],[21,18.51],[22,10.59],[23,20.9],[24,21.05],[25,21.31],[26,20.95],[27,18.6],[28,14.39],[29,12.05],[30,18.34],[31,15.64],[32,18.38],[33,11.12],[34,13.13],[35,12.77],[36,21.13],[37,19.01],[38,21.46],[39,21.44],[40,21.58],[41,21.79],[42,21.6],[43,21.76],[44,21.6],[45,23.69],[46,23.28],[47,49.45],[48,32.76]]},{"date":"2026-10-07","avg":24.33,"max":36.21,"min":0.02,"tp":[[1,36.21],[2,30.48],[3,31.8],[4,31.37],[5,31.4],[6,26.02],[7,29.52],[8,23.18],[9,31.22],[10,31.38],[11,27.92],[12,30.93],[13,27.43],[14,22.98],[15,0.02],[16,1.25],[17,0.02],[18,14.5],[19,31.53],[20,28.45],[21,20.74],[22,25.87],[23,27.55],[24,30.25],[25,18.32],[26,20.55],[27,30.8],[28,30.81],[29,31.32],[30,31.45],[31,31.13],[32,18.73],[33,27.87],[34,19.31],[35,8.33],[36,4.21],[37,18.12],[38,12.94],[39,32.11],[40,12.89],[41,31.84],[42,12.89],[43,32.45],[44,32.21],[45,31.96],[46,31.86],[47,22.13],[48,31.82]]},{"date":"2026-10-08","avg":32.79,"max":44.67,"min":23.9,"tp":[[1,33.26],[2,31.93],[3,40.21],[4,32.83],[5,31.46],[6,23.9],[7,31.44],[8,29.7],[9,31.11],[10,31.42],[11,31.53],[12,31.75],[13,32.09],[14,32.46],[15,32.38],[16,32.68],[17,32.92],[18,32.93],[19,32.74],[20,32.6],[21,32.49],[22,32.36],[23,32.21],[24,32.26],[25,34.35],[26,32.52],[27,32.23],[28,32.25],[29,32.26],[30,31.45],[31,31.65],[32,32.11],[33,29.19],[34,32.08],[35,26.81],[36,32.64],[37,32.72],[38,32.58],[39,32.94],[40,44.67],[41,41.9],[42,36.9],[43,39.6],[44,33.19],[45,32.66],[46,32.37],[47,32.11],[48,32.11]]},{"date":"2026-10-09","avg":32.34,"max":45.05,"min":12.37,"tp":[[1,39.69],[2,32.34],[3,34.12],[4,31.61],[5,31.48],[6,12.37],[7,20.42],[8,31.45],[9,31.54],[10,31.48],[11,30.25],[12,31.76],[13,28.68],[14,32.67],[15,45.05],[16,39.79],[17,42.83],[18,32.94],[19,32.8],[20,32.76],[21,32.43],[22,32.4],[23,32.39],[24,32.14],[25,31.28],[26,31.9],[27,31.84],[28,32.16],[29,31.96],[30,31.86],[31,32.13],[32,32.16],[33,32.19],[34,32.18],[35,32.38],[36,31.59],[37,31.75],[38,32],[39,32],[40,31.76],[41,31.97],[42,31.97],[43,31.98],[44,31.93],[45,33.56],[46,34.64],[47,34.8],[48,34.86]],"interim":true},{"date":"2026-10-10","avg":36.75,"max":66.52,"min":31.48,"tp":[[1,34.13],[2,39.05],[3,44.44],[4,44.6],[5,38.82],[6,37.47],[7,37.58],[8,42.55],[9,36.77],[10,38.42],[11,31.48],[12,31.5],[13,41.83],[14,40.68],[15,36.84],[16,37.19],[17,31.78],[18,31.83],[19,32.04],[20,31.9],[21,32.78],[22,31.69],[23,31.77],[24,32.57],[25,35.05],[26,31.81],[27,32.3],[28,31.66],[29,31.63],[30,31.66],[31,32.01],[32,31.67],[33,31.64],[34,32.89],[35,31.79],[36,31.78],[37,31.8],[38,31.9],[39,31.97],[40,31.98],[41,31.81],[42,31.79],[43,39.96],[44,42.82],[45,48.53],[46,57.18],[47,66.52],[48,62.1]],"interim":true},{"date":"2026-10-11","avg":27.79,"max":66.57,"min":0.02,"tp":[[1,66.57],[2,43.52],[3,32.89],[4,37.48],[5,40.59],[6,35.24],[7,31.15],[8,31.2],[9,31.16],[10,33.55],[11,31.44],[12,31.44],[13,31.57],[14,32.09],[15,31.57],[16,32.89],[17,31.53],[18,31.59],[19,31.57],[20,31.61],[21,31.53],[22,20.6],[23,7.53],[24,4.02],[25,10.76],[26,0.02],[27,0.02],[28,0.02],[29,0.02],[30,0.02],[31,0.02],[32,0.28],[33,26.95],[34,19.79],[35,29.62],[36,31.61],[37,31.71],[38,31.67],[39,31.68],[40,31.69],[41,31.78],[42,31.8],[43,35.8],[44,51.06],[45,38.4],[46,37.56],[47,54.67],[48,42.78]],"interim":true}],"lastYear":[{"date":"2025-10-11","avg":1.19}],"year":[{"month":"2025-10","avg":29.41,"max":1058.48},{"month":"2025-11","avg":57.97,"max":268.57},{"month":"2025-12","avg":5.49,"max":239.23,"incomplete":true},{"month":"2026-01","avg":1.99,"max":77.26},{"month":"2026-02","avg":39.84,"max":159.02},{"month":"2026-03","avg":151.82,"max":304.45},{"month":"2026-04","avg":106.13,"max":423.72},{"month":"2026-05","avg":79.65,"max":494.99},{"month":"2026-06","avg":37.83,"max":382.63},{"month":"2026-07","avg":47.34,"max":765.65},{"month":"2026-08","avg":66.98,"max":3708.4},{"month":"2026-09","avg":24.23,"max":238.72}],"forecast":{"kind":"PRSL+PRSS","runAt":"2026-10-11T23:33:00","rows":[["2026-10-11",48,45.3],["2026-10-12",1,30.52],["2026-10-12",2,31.39],["2026-10-12",3,31.31],["2026-10-12",4,31.18],["2026-10-12",5,31.18],["2026-10-12",6,31.18],["2026-10-12",7,31.17],["2026-10-12",8,31.16],["2026-10-12",9,31.11],["2026-10-12",10,31.18],["2026-10-12",11,39.88],["2026-10-12",12,39.48],["2026-10-12",13,45.94],["2026-10-12",14,31.66],["2026-10-12",15,36.4],["2026-10-12",16,95.84],["2026-10-12",17,97.21],["2026-10-12",18,94.41],["2026-10-12",19,37.61],["2026-10-12",20,31.75],["2026-10-12",21,31.65],["2026-10-12",22,18.62],["2026-10-12",23,31.64],["2026-10-12",24,18.61],["2026-10-12",25,18.6],["2026-10-12",26,31.52],["2026-10-12",27,31.52],["2026-10-12",28,31.52],["2026-10-12",29,31.52],["2026-10-12",30,7.8],["2026-10-12",31,7.45],["2026-10-12",32,7.47],["2026-10-12",33,7.8],["2026-10-12",34,18.6],["2026-10-12",35,31.55],["2026-10-12",36,31.66],["2026-10-12",37,31.66],["2026-10-12",38,31.78],["2026-10-12",39,31.81],["2026-10-12",40,31.84],["2026-10-12",41,31.84],["2026-10-12",42,31.83],["2026-10-12",43,31.78],["2026-10-12",44,31.78],["2026-10-12",45,35.09],["2026-10-12",46,38.56],["2026-10-12",47,45.2],["2026-10-12",48,43.31],["2026-10-13",1,38.15],["2026-10-13",2,52.84],["2026-10-13",3,42.03],["2026-10-13",4,41.62],["2026-10-13",5,40.01],["2026-10-13",6,34.59],["2026-10-13",7,32.89],["2026-10-13",8,31.22],["2026-10-13",9,31.25],["2026-10-13",10,31.44],["2026-10-13",11,31.51],["2026-10-13",12,34.94],["2026-10-13",13,35.29],["2026-10-13",14,31.77],["2026-10-13",15,31.91],["2026-10-13",16,31.95],["2026-10-13",17,18],["2026-10-13",18,7.53],["2026-10-13",19,0.02],["2026-10-13",20,0.02]],"runs":{"prsl":{"runAt":"2026-10-11T22:10:03"},"prss":{"runAt":"2026-10-11T23:33:00"}}},"hydro":{"asOf":"2026-10-10","si":{"pctOfMean":122.8},"nz":{"pctOfMean":114.8},"band":"normal","licensed":false,"source":"EMI security-of-supply report (Electricity Authority NZ)","caveat":"storage figures via NZX Hydro/NIWA, republished as the derived share of the 20-year mean, not the raw series"},"scorecard":{"generated":"2026-10-11T18:07:05.811Z","node":"ISL2201","windows":{"30d":{"resolved":618,"horizons":{"1h":{"n":618,"spikeAt":45.46,"models":{"ridge-v1":{"n":618,"mae":44.12,"spikeN":31,"spikeMae":21.89},"prss":{"n":618,"mae":5.83,"spikeN":31,"spikeMae":13.12},"prsl":{"n":618,"mae":9.18,"spikeN":31,"spikeMae":21.48},"naive":{"n":618,"mae":24.76,"spikeN":31,"spikeMae":30.81}}},"24h":{"n":572,"spikeAt":45.46,"models":{"ridge-v1":{"n":572,"mae":22.76,"spikeN":30,"spikeMae":25.27},"prss":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"prsl":{"n":572,"mae":8.48,"spikeN":30,"spikeMae":11.04},"naive":{"n":572,"mae":25.98,"spikeN":30,"spikeMae":30.71}}},"7d":{"n":284,"spikeAt":45.46,"models":{"ridge-v1":{"n":284,"mae":30.4,"spikeN":16,"spikeMae":65.92},"prss":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"prsl":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"naive":{"n":284,"mae":32.2,"spikeN":16,"spikeMae":43.82}}}}},"all":{"resolved":618,"horizons":{"1h":{"n":618,"spikeAt":45.46,"models":{"ridge-v1":{"n":618,"mae":44.12,"spikeN":31,"spikeMae":21.89},"prss":{"n":618,"mae":5.83,"spikeN":31,"spikeMae":13.12},"prsl":{"n":618,"mae":9.18,"spikeN":31,"spikeMae":21.48},"naive":{"n":618,"mae":24.76,"spikeN":31,"spikeMae":30.81}}},"24h":{"n":572,"spikeAt":45.46,"models":{"ridge-v1":{"n":572,"mae":22.76,"spikeN":30,"spikeMae":25.27},"prss":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"prsl":{"n":572,"mae":8.48,"spikeN":30,"spikeMae":11.04},"naive":{"n":572,"mae":25.98,"spikeN":30,"spikeMae":30.71}}},"7d":{"n":284,"spikeAt":45.46,"models":{"ridge-v1":{"n":284,"mae":30.4,"spikeN":16,"spikeMae":65.92},"prss":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"prsl":{"n":0,"mae":null,"spikeN":0,"spikeMae":null},"naive":{"n":284,"mae":32.2,"spikeN":16,"spikeMae":43.82}}}}}},"counts":{"forecasts":5906,"since":"2026-09-27"}}}