The combination of higher wholesale prices and improving renewable economics has triggered substantial grid-scale generation investment in New Zealand. The Electricity Authority publishes a generation investment pipeline dashboard showing planned projects.
For industrial users, the pipeline is worth watching, because what gets built and when determines the price environment you plan against.
Why prices rose in the first place
Between 2019 and early 2026 the average wholesale price rose to around $160 per MWh. In May 2026 the average spot price reached $105 per MWh, up around $49 on higher demand, lower wind generation and roughly 100 megawatts of geothermal offline.
The underlying drivers: declining gas supply pushing up the cost of thermal generation that sets the price at the margin, insufficient new capacity, and a stagnation in seasonal firming.
Expected wholesale prices have been falling more recently as new renewable capacity enters the system, which is the mechanism working as intended — high prices attract investment, investment adds supply, supply reduces price.
The delivery risk
A pipeline is a set of intentions. The risk is timing, and there are two constraints that consistently bind.
Connection. For transmission-connected projects, the process with Transpower as asset owner and system operator runs on lead times measured in years. For distribution-connected projects, hosting capacity varies dramatically between locations a few kilometres apart, and network upgrade costs can exceed the generation asset.
Consenting. Resource consent under the RMA, with the added complication that the Act is being replaced. The Planning Bill and Natural Environment Bill were reported back from select committee in July 2026, with a fully operational new system signalled around 2029.
Projects with long timelines should watch transitional provisions and consent lapse periods, which run to fixed dates regardless of what is changing around them.
What industrial users should do
Understand your exposure. If you buy on a contract, wholesale volatility reaches you at renewal. Know when your contract expires and start the conversation early rather than accepting a rollover.
Value flexibility. Load that can move in time is worth money, and increasingly there are arrangements that pay for it. Refrigeration with thermal mass, batch processes, water heating and EV charging are all candidates.
Manage peak demand. Network charges based on peak demand are a large share of many industrial bills, and reducing the peak cuts cost without reducing consumption. Staggering equipment starts and identifying coincident loads costs nothing.
Do the efficiency work. The cheapest unit is the one you do not use, and it reduces both energy and peak.
Considering your own generation
For sites with suitable roof area or land, behind-the-meter generation reduces exposure. The assessment:
- Match generation to your load profile using half-hourly consumption data, not annual totals. Solar suits daytime weekday operations and suits evening load poorly without storage.
- Export is worth less than import. The value is in offsetting consumption, not selling surplus.
- Check network hosting capacity early. For anything beyond a small installation this determines feasibility.
- Understand the connection process for distributed generation, which has defined steps and timeframes but requires assessment of network capacity, protection and power quality.
Process heat electrification interacts with this
Converting industrial process heat from coal or gas to electricity adds load, and the economics depend on both electricity price and network capacity at your site.
The sequence that works: reduce demand through insulation and controls, recover waste heat, optimise the existing system, then change fuel. Plants following that order frequently find the replacement can be substantially smaller and cheaper.
Establish the temperature the process actually requires first — processes are frequently run hotter than necessary, and heat pumps become viable below certain thresholds with a large efficiency advantage.
Where the data is
The Electricity Authority publishes wholesale prices, demand, generation, hydro storage and the generation investment pipeline through emi.ea.govt.nz, under a default open licence permitting commercial reuse with attribution.
That platform is the authoritative source for anyone assessing exposure, modelling project revenue or watching whether the pipeline is being delivered.
MBIE publishes energy statistics, EECA publishes decarbonisation material, and Transpower publishes connection process information.
Figures: Electricity Authority market reporting, May 2026 and longer-run averages to early 2026. General information only.
