GridCheck NZ

An independent, open check on New Zealand's power system: what's generating, what it costs, and where your bill goes.

Saved 56 price readings and 4 generation readings since 2026-10-17.

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Right now

Demand (load)4,664 MW · North 2,947 · South 1,717
Cook Strait cable (HVDC)817 MW South → North (limit 1200 MW, 68% used)
Renewable98.72%
Carbon26.11 g CO₂/kWh · month avg 32.68 · year avg 45.79
Reserve prices North$1 fast / $1 sustained
Reserve prices South$0 fast / $0 sustained

Load as at 2026-10-18 08:55. HVDC as at 2026-10-18 08:00.

Wholesale price now

Half-hour ending 18/10/2026, 8:30:00 am (trading period 18). $ per MWh, and cents per kWh — before lines, retail and GST.

Northland$54.535.5c
Auckland$54.355.4c
Hamilton$52.745.3c
Taranaki$52.535.3c
Bunnythorpe$50.715.1c
Hawkes Bay$50.515.1c
Edgecumbe$49.855.0c
Wellington$48.284.8c
Nelson$43.634.4c
Christchurch$43.454.3c
West Coast$42.924.3c
Otago$40.974.1c
Canterbury$40.944.1c
Southland$39.453.9c

Generation mix now

As at 18 Oct 2026 08:00 · total 4798 MW · renewable 98.72%

SourceMWShare
Hydro298662.2%
Geothermal119224.8%
Wind3086.4%
Solar2475.1%
Co-Gen621.3%
Battery40.1%
Coal00.0%
Gas00.0%
Diesel/Oil00.0%

Generation mix — last 24 hours

Each bar is one half-hour, newest on the right. Bar height = total power being made. Hover a bar for the numbers.

HydroGeothermalWindSolarGas, coal & otherBattery
01,0002,0003,0004,0005,0006,000MW
Show as a table
TimeHydroGeoWindSolarGasCoalOilCo-GenBatteryTotalRenew.
08:0029861192308247000624479898.72%
07:30297611823101360006137470198.7%
07:0028581176325540006143451598.65%
21:3033411224341046005965507696.7%

What each fuel earned — 2026-10-17

Whole day, all NZ. Average price = what that fuel was paid per MWh on average across the day (weighted by when it ran). Earned = MWh × average price.

FuelMWhAvg $/MWhEarnedShare
Hydro63,800$40.52$2,585,16548.4%
Geothermal28,936$64.08$1,854,21834.8%
Wind11,455$45.63$522,7119.8%
Solar5,068$31.65$160,3973.0%
Co-Gen1,418$66.57$94,3641.8%
Battery565$130.87$73,9691.4%
Gas441$102.07$44,9700.8%
Total111,682$47.78$5,335,794

Monthly: power price vs your bill

Cents per kWh, all incl GST. Wholesale = average for the month. Lines = network charges. Retailer & other = what's left (retailer costs and margin, losses, levies, metering). Bill price = MBIE survey, cheapest plan for an 8,000 kWh/yr home.

MonthPlaceWholesaleLinesRetailer & otherBill price
First summary appears on the 1st of next month

Download the data

Spreadsheet files (last 30 days — change days= up to 365): prices · generation · load · hvdc · carbon · reserves · node_prices · wind_solar · fuel_daily · capacity · poc_prices · monthly · retail

Sources: Transpower consolidated live data; em6 (Energy Market Services) free data; MBIE Quarterly Survey of Domestic Electricity Prices. Times are NZ time.