| High renewable share in recent weeks | 26-Oct-25 |
| Significant solar fluctuations on the system | 12-Oct-25 |
| Relationship between NIWA's seasonal climate outlook and hydro inflows | 5-Oct-25 |
The regional conforming load sensitivities to temperature variance in the summer and winter periods. | 28-Sep-25 |
The effect of the recently contracted grid scale battery energy storage system on reserve prices
| 21-Sep-25 |
| Changes in the peak-to-average load ratio | 14-Sep-25 |
| Overview of intermittent generation curtailment on the grid and how frequently they are constrained. | 7-Sep-25 |
| The effect of time-of-use plans on power usage peaks | 31-Aug-25 |
| Differences in daily generation profile between different solar farms | 24-Aug-25 |
| Overview of the difference between conforming and non-conforming grid exit points | 17-Aug-25 |
| Generation mix of the top 10 demand periods | 10-Aug-25 |
| Tie-breaker constraint in Scheduling, Pricing and Dispatch | 3-Aug-25 |
| Contribution to peak demand from different renewable generation types | 27-Jul-25 |
| Energy Supply from Different Renewables | 20-Jul-25 |
| Tekapo A electrical islanding | 13-Jul-25 |
| Significant Wind Fluctuations on the System | 6-Jul-25 |
| Security of Supply Assessment 2025 | 29-Jun-25 |
| Total and Net Winter Load Peaks | 22-Jun-25 |
| Ancillary Services Procurement Plan Update | 15-Jun-25 |
| Week-Ahead Dispatch Schedule Overview and Example | 8-Jun-25 |
| Energy Security Outlook 101 | 1-Jun-25 |
| SPD Link Risks | 25-May-25 |
| Real-time versus forecasted intermittent offers and the centralised forecasting system | 18-May-25 |
| 2025 draft Security of Supply Assessment | 11-May-25 |
| Severe weather impacts on Aotearoa's power system | 4-May-25 |
| Potential Future Pipeline of Battery Energy Storage Systems (BESS) | 27-Apr-25 |
| Ancillary Services Procurement Plan Review 2025 | 20-Apr-25 |
| Evolution of Cogeneration in NZ's Electricity Market | 13-Apr-25 |
| Solar winter peak contributions | 6-Apr-25 |
| Evolving Supply Pipeline | 30-Mar-25 |
| Recent inflow event provides little reprieve for controlled hydro storage catchments | 23-Mar-25 |
| Hydro Storage and Weekly Spot Prices | 16-Mar-25 |
| SOSFIP Review Issues Paper | 9-Mar-25 |
| Causes of hydro storage decline | 2-Mar-25 |
| Causes of hydro storage decline | 23-Feb-25 |
| Variation in wind farm output | 16-Feb-25 |
| Security of Supply Outlook | 9-Feb-25 |
| Zero price periods and market node constraints | 2-Feb-25 |
| Changing Load Profile | 26-Jan-25 |
| Spike in prices following an Under-Frequency Event | 19-Jan-25 |
| Holiday load profiles | 12-Jan-25 |
| Powering Santa's Workshop | 22-Dec-24 |
| Price separation during unplanned HVDC outage | 15-Dec-24 |
| November vs. July load profiles | 8-Dec-24 |
| System Operator consultations | 1-Dec-24 |
| Changes in Industrial Load | 24-Nov-24 |
| North Island Price Separation | 17-Nov-24 |
| Near zero wind generation | 10-Nov-24 |
| October ERC Update | 3-Nov-24 |
| New and upcoming generation in 2024 | 27-Oct-24 |
| AC transmission line setting North Island risk | 20-Oct-24 |
| Causes of recent low demand | 13-Oct-24 |
| Security of Supply Outlook | 6-Oct-24 |
| Renewable generation, periods of peak demand and new generator commissioning | 29-Sep-24 |
| Low Residual Customer Advice Notices last week | 22-Sep-24 |
| Significant increase in hydro storage levels | 15-Sep-24 |
| Forecast of generation potential (FOGP) | 8-Sep-24 |
| Low energy prices, high wind generation and low demand | 1-Sep-24 |
| Low generation from Waitaki Hydro Scheme last week | 25-Aug-24 |
| Consultation for an Adjustment to Alert Contingent Storage Release Boundary | 18-Aug-24 |
| Near record low hydrology | 11-Aug-24 |
| Reversing HVDC trends | 4-Aug-24 |
| Declining hydro storage in July 2024 | 28-Jul-24 |
| Low wind generation last week | 21-Jul-24 |
| Thermal generation, hydro storage and spot prices | 14-Jul-24 |
| Evolving market resource co-ordination in New Zealand | 7-Jul-24 |
| 2024 Security of Supply Assessment (SOSA) | 30-Jun-24 |
| 2023 Load Duration Curve | 23-Jun-24 |
| Reserve scheduling and dispatch after an under frequency event | 16-Jun-24 |
| Geothermal Development Over the Years | 9-Jun-24 |
| Residual and Energy Shortfall | 2-Jun-24 |
| Average household winter electricity consumption during weekdays | 26-May-24 |
| Managing Solar Weather | 19-May-24 |
| 10 May 2024 Morning Peak | 12-May-24 |
| Wind and Solar Variability | 5-May-24 |
| Growth of Wind Turbines and Farms | 28-Apr-24 |
| Large Inflow Periods | 21-Apr-24 |
| Electricity Risk Curves 101 | 14-Apr-24 |
| Overview of Market Schedules | 7-Apr-24 |
| How Does Price Correlate with Hydrology? | 31-Mar-24 |
| How Does Price Correlate with Demand? | 24-Mar-24 |
| High spring washer prices at Invercargill and Tiwai | 17-Mar-24 |
| Net Free Reserves (NFRs) | 10-Mar-24 |
| Real Time Price Inversion | 3-Mar-24 |
| Last week's potential South Island Reserves Shortfall CAN | 25-Feb-24 |
| Intermittent generation forecast accuracy | 18-Feb-24 |
| Persistence wind offers | 11-Feb-24 |
| Deeper look at prices from last week | 4-Feb-24 |
| Deeper Look at Price's from Last Week | 28-Jan-24 |
| Factors influencing recent high prices | 21-Jan-24 |
| Summer load profiles | 14-Jan-24 |
| Low demand over the holiday period | 7-Jan-24 |
| Alternative Energy Sources for Santa's Sleigh | 17-Dec-23 |
| 2023 Year in Review | 10-Dec-23 |
| North island wind risk group | 3-Dec-23 |
| Solar PV | 26-Nov-23 |
| New wind risk group setting North Island risk | 19-Nov-23 |
| Security of Supply Assessment (SOSA) Reference Case and Sensitivities | 12-Nov-23 |
| Low Residual CANs | 5-Nov-23 |
| Rugby World Cup Final Loads | 29-Oct-23 |
| Security of Supply Assessment update | 22-Oct-23 |
| Tight capacity margins | 15-Oct-23 |
| Short term effect of large rain events on prices | 8-Oct-23 |
| Energy demand trend | 1-Oct-23 |
| Actual wind generation vs assumed wind generation | 24-Sep-23 |
| Timing Outages to Avoid Peaks | 17-Sep-23 |
| HVDC Reserve Sharing and Price Separation | 10-Sep-23 |
| Growth in peak demand | 3-Sep-23 |
| Contribution of new resources towards meeting peak demand under different scenarios | 27-Aug-23 |
| Seeking Feedback on SO Market Insight: 'Evolving Security of Supply Assessment in NZ' | 20-Aug-23 |
| Industry Response to Low Residual CANs | 13-Aug-23 |
| Industry navigates winter's coldest day | 6-Aug-23 |
| New Zealand's top ten electricity demand peaks | 30-Jul-23 |
| Reduced price volatility due to increased thermal commitment | 23-Jul-23 |
| Thermal commitment after Huntly Unit 5 removal | 16-Jul-23 |
| Instantaneous reserves and new monitoring requirements | 9-Jul-23 |
| 2023 Security of Supply Assessment: Supply Inputs | 2-Jul-23 |
| Potential El Niño Effects on Hydro Storage | 25-Jun-23 |
| Binding HVDC Ramp Constraint | 18-Jun-23 |
| Price volatility under a highly renewable system | 11-Jun-23 |
| New SOSFIP - Electricity Risk Curves Interpretation | 4-Jun-23 |
| Distributors to Bid Controllable Load as Difference Bids | 28-May-23 |
| Winter Sensitivity Schedules Available on WITS | 21-May-23 |
| Draft 2023 Security of Supply Assessment Consultation - North Island Winter Capacity Margin | 14-May-23 |
| North Island wind forecast on em6 | 7-May-23 |
| New Island Residual Information in WITS | 30-Apr-23 |
| HVDC Transfer Limits | 23-Apr-23 |
| New Hydro Storage Graphs | 16-Apr-23 |
| New Zealand Total Gas Production | 11-Apr-23 |
| Load Forecast Weather Input Analysis | 2-Apr-23 |
| An analysis of last week's low residual situations | 26-Mar-23 |
| Wind Farm Commissioning | 19-Mar-23 |
| Real-Time Pricing - Dispatchable Demand and Dispatch Notification | 12-Mar-23 |
| NIWA Seasonal Climate Outlook March - May 2023 | 5-Mar-23 |
| Grid Restoration in Hawke's Bay and Gisborne | 26-Feb-23 |
| Cyclone Gabrielle Load Changes | 19-Feb-23 |
| New Zealand's Generation Mix | 12-Feb-23 |
| North Island Hydro Storage Extremes | 5-Feb-23 |
| Northern Lakes Taken by Storm | 29-Jan-23 |
| Low January Inflows Again for 2023 | 22-Jan-23 |
| 2023 Security of Supply Outlook - Summary | 15-Jan-23 |
| Periods of Low Load | 8-Jan-23 |
| Generation Outages | 18-Dec-22 |
| Record Renewables | 11-Dec-22 |
| 1st December 2022 Price Spike | 4-Dec-22 |
| Invitation to Comment: 2023 Security of Supply Assessment: Reference Case Assumptions and Sensitivities | 27-Nov-22 |
| Risk Setter | 20-Nov-22 |
| Record Renewables | 13-Nov-22 |
| Why are RTD prices "spiky" | 6-Nov-22 |
| Real-Time Pricing is Live! | 30-Oct-22 |
| Real-Time Pricing goes live 1 November 2022 | 23-Oct-22 |
| Peak Demand Growth | 16-Oct-22 |
| Trough Trends and Voltage Management | 9-Oct-22 |
| Daylight Savings & School Holidays | 2-Oct-22 |
| Residuals Over The Past 10 Years | 25-Sep-22 |
| Analysis of Low Residual Situation on 15 September 2022 | 18-Sep-22 |
| Analysis of Low Residual Situation on 6 September 2022 | 11-Sep-22 |
| Auckland Load Profile | 4-Sep-22 |
| Hydro Inflows | 28-Aug-22 |
| Spring Washer Effect & Negative Prices | 21-Aug-22 |
| New Zealand Generation Balance | 14-Aug-22 |
| Low Residual Points - MW | 7-Aug-22 |
| Load Forecast Accuracy Metrics | 31-Jul-22 |
| Relationship between inflows and changes in hydro storage position | 24-Jul-22 |
| July 2022 HVDC Transfer Analysis | 17-Jul-22 |
| Real Time Peak Load vs. Forecasted Half Hour Average | 10-Jul-22 |
| Load Shedding Analysis | 3-Jul-22 |
| Peak Load Evolution | 26-Jun-22 |
| Island Load Sensitivity | 19-Jun-22 |
| Comparing Price Responsive Schedule (PRS) Prices and Final Prices | 12-Jun-22 |
| New Zealand Generation Balance forecast | 5-Jun-22 |
| New Carbon Emissions Plots | 29-May-22 |
| Draft 2022 Security of Supply Annual Assessment Consultation - North Island Winter Capacity Margin | 22-May-22 |
| Marsden Point Oil Refinery Closure | 15-May-22 |
| Transmission Pricing Methodology and Peak Load | 8-May-22 |
| Instantaneous Reserves Code and Procurement Plan Changes Go-Live 3 May 2022 | 1-May-22 |
| Warm weather and rain | 24-Apr-22 |
| Recovery of Te Anau and Manapōuri lakes | 17-Apr-22 |
| La Nina climate event and its impact on national hydro storage | 10-Apr-22 |
| Low Lake Manapouri inflows | 3-Apr-22 |
| Lake Waikaremoana | 27-Mar-22 |
| New Demand Charts | 20-Mar-22 |
| New Demand Charts | 13-Mar-22 |
| New TESLA load forecast for System Operator | 6-Mar-22 |
| Why is Tekapo power scheme at half capacity while the lake is spilling? | 27-Feb-22 |
| HVDC Maintenance Outages | 20-Feb-22 |
| Manapōuri operating at low end of main operating range | 13-Feb-22 |
| Lowest January Inflows Ever | 6-Feb-22 |
| Irrigation Load: Slow to Start | 30-Jan-22 |
| An overview of the HVDC | 23-Jan-22 |
| The windiest generation mix in New Zealand history | 16-Jan-22 |
| 2022 Security Of Supply Overview | 19-Dec-21 |
| Looking ahead to 2022 | 12-Dec-21 |
| The evolution of wind generation technology in New Zealand | 5-Dec-21 |
| Looking to the future energy mix | 28-Nov-21 |
| Carbon Emissions | 21-Nov-21 |
| Gas Extraction | 14-Nov-21 |
| Wind Generation | 7-Nov-21 |
| Renewable Generation Percentage | 31-Oct-21 |
| Inflows vs Wind Generation | 24-Oct-21 |
| South Island Demand Data Pre and Post RCPD Changes | 17-Oct-21 |
| Daily Demand Peaks | 10-Oct-21 |
| The rise of small retailers in New Zealand's electricity market | 3-Oct-21 |
| Annual Peak Demand's Over Time | 26-Sep-21 |
| Forecasting The Grid Impact of Auckland's Alert Level Change | 19-Sep-21 |
| Natural Gas Update | 12-Sep-21 |
| Thermal drop off under lockdown | 5-Sep-21 |
| From a dry summer to a wet winter | 29-Aug-21 |
| How lockdown affects national load | 22-Aug-21 |
| New Zealand's electric vehicle fleet | 15-Aug-21 |
| New record peak demand | 8-Aug-21 |
| How installed generation capacity translates to the supply of energy and capacity over winter | 1-Aug-21 |
| Relationship between Inflows, Storage and Average Prices | 25-Jul-21 |
| Gas - Reserves Forecast | 18-Jul-21 |
| A look at intermittent generation forecasting and minimum market participant size | 11-Jul-21 |
| How do New Zealand's other islands source their power? | 4-Jul-21 |
| NZ solar generation shows signs of ramping up | 27-Jun-21 |
| Plus a closer look at this year's hydro storage | 20-Jun-21 |
| Plus a look at the inflows over the recent dry scenario | 13-Jun-21 |
| Plus a look at a past line tripping in a Real Time Pricing context | 6-Jun-21 |
| A look at what Genesis and Methanex's recent gas agreement brings to the table | 30-May-21 |
| Plus a look at Standalone Dispatch (SAD) | 23-May-21 |
| Plus a look at comparison of the generation mix (2020/21) | 16-May-21 |
| As well as a look at how the hydro inflows for the 2021 year so far compare to historical inflows | 9-May-21 |
| A simplified overview into the mechanical operation of a Rankine Turbine | 2-May-21 |
| Plus a look at the relationship between hydro storage, inflows and generation at Manapouri. | 25-Apr-21 |
| Effect of the end of daylight saving on the evening peak | 18-Apr-21 |
| Dry-Year Smelter Demand Response Trigger | 11-Apr-21 |
| The HVDC as the South Island risk setter causing inter-island price separation | 4-Apr-21 |
| Unplanned Kupe production outage leads to high prices | 28-Mar-21 |
| Lower wind generation and higher prices | 21-Mar-21 |
| Increased risk from lightning led to high Hawkes Bay prices | 14-Mar-21 |
| Relationship between wind generation and prices | 7-Mar-21 |
| Thermal contribution to generation mix for last 5 summers | 28-Feb-21 |
| NZ energy futures | 21-Feb-21 |
| Hydrological inflows to catchment lakes | 14-Feb-21 |
| Upward pressure on prices | 7-Feb-21 |
| Spring washers / HSWPS | 31-Jan-21 |
| Recent Changes in South Island Hydro Generation | 24-Jan-21 |
| New Generation at Ngawha online | 17-Jan-21 |
| Low Demand over the Holiday Period | 10-Jan-21 |
| The events contributing to the interesting pricing situations in 2020 | 20-Dec-20 |
| Huntly generation as a result of the unexpected Kupe gas outage | 13-Dec-20 |
| Uncertainty of changes to peak NI demand from August 2021 | 6-Dec-20 |
| Pohokura production patterns from 2019, 2020 and speculation into 2021 | 29-Nov-20 |
| Increase in North Island hydro storage | 22-Nov-20 |
| Waipipi Windfarm's first generation | 15-Nov-20 |
| CUWLP and 10 minute offloads | 8-Nov-20 |
| Wind offer arrangement | 1-Nov-20 |
| Closer look at Taranaki Combined Cycle's historical generation profile | 25-Oct-20 |
| Spring irrigation demand starts to increase | 18-Oct-20 |
| A look into the Ahuroa Gas Storage Facility | 11-Oct-20 |
| A look into capacity factors of generation over the last year | 4-Oct-20 |
| Auckland energy consumption during the March and August lockdowns | 27-Sep-20 |
| A look at inter-island price separation | 20-Sep-20 |
| Tender for Over Frequency Reserve and Black Start services coming up soon | 13-Sep-20 |
| A look at electrical islanding at Tekapo | 6-Sep-20 |
| A look at the on-going Pohokura outages | 30-Aug-20 |
| A look at snow storage in the Waitaki catchment | 23-Aug-20 |
| A look at New Zealand's major wind projects | 16-Aug-20 |
| Sensitivity schedules Proof of Concept launched | 9-Aug-20 |
| A detailed look into factors affecting on energy prices. Price and demand correlations | 2-Aug-20 |
| Supersized Pumped Hydro Storage | 26-Jul-20 |
| Energy Demand Outlook | 19-Jul-20 |
