GridCheck NZ

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

Saved 784 price readings and 54 generation readings since 2026-10-17.

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Right now

Demand (load)4,746 MW · North 3,094 · South 1,652
Cook Strait cable (HVDC)779 MW South → North (limit 1200 MW, 65% used)
Renewable95.23%
Carbon51.03 g CO₂/kWh · month avg 32.73 · year avg 45.74
Reserve prices North$1 fast / $1 sustained
Reserve prices South$0 fast / $0 sustained

Load as at 2026-10-19 10:55. HVDC as at 2026-10-19 10:00.

Wholesale price now

Half-hour ending 19/10/2026, 10:30:00 am (trading period 22). $ per MWh, and cents per kWh — before lines, retail and GST.

Northland$18.421.8c
Auckland$18.381.8c
Hamilton$17.851.8c
Hawkes Bay$16.921.7c
Edgecumbe$16.881.7c
Taranaki$16.801.7c
Bunnythorpe$16.501.6c
Wellington$15.561.6c
Canterbury$0.020.0c
Christchurch$0.020.0c
Nelson$0.020.0c
Otago$0.020.0c
Southland$0.020.0c
West Coast$0.020.0c

Last 24 hours

One reading every half-hour. Hover for the numbers. Gaps mean no reading was saved.

North Island averageSouth Island averagethin lines = each zone
$0$50$100$150$20012:0015:0018:0021:0000:0003:0006:0009:00

Generation mix now

As at 19 Oct 2026 10:00 · total 5100 MW · renewable 94.9%

SourceMWShare
Hydro274653.8%
Geothermal122424.0%
Solar4759.3%
Wind3817.5%
Coal1022.0%
Gas961.9%
Co-Gen611.2%
Battery150.3%
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
01,0002,0003,0004,0005,0006,000MW12:0015:0018:0021:0000:0003:0006:0009:00
Show as a table
TimeHydroGeoWindSolarGasCoalOilCo-GenBatteryTotalRenew.
10:00274612243814759610206115510094.9%
09:3029981224366412951030611526195.07%
09:00319712213513849610305918542995.23%
08:3034371214339326961030574557595.42%
08:00366711893942289510205854578895.54%
07:3038021178401134959905875584395.63%
07:003696118139455957905879563795.83%
06:30333811834477906105956524195.96%
06:00300811844500433805927480997.07%
05:302643118442400290587434598%
05:002445118439600190590410398.11%
04:302188119036900140580381998.11%
04:00213011933440050590373198.3%
03:30204711923570000600365698.37%
03:00203211913500000590363298.39%
02:30200012313860000590367698.39%
02:00205712333740000580372298.43%
01:30208212293650000590373498.42%
01:00217312283540000590381498.46%
00:30225512293390000590388298.48%
00:002352122931502005912396998.44%
23:302501122831004600580414497.49%
23:002705122730104600596434397.58%
22:3028551224280046006034449897.63%
22:0030111220271062006098472097.37%
21:30319612122580141006066493395.88%
21:00336912072590141006068510396%
20:30339712132660141005944512096.07%
20:00342012122680140006065516596.07%
19:30329112062892140005765505096.04%
19:003241119928324140005840498695.99%
18:303184118726177140005932494195.95%
18:0030391173243162139005928484395.88%
17:3028751161231255134005912472895.9%
17:002610114120639961005923449997.32%
16:30239811362085210005913433498.64%
15:0020521192206589000590409998.55%
14:3020131192205589000600406098.52%
14:0020281195193589000600406698.52%
13:3020161196188588000600404998.51%
13:0021241202187587000610416298.54%
12:3021801208194587000610423198.56%
12:0022541213194585000610430798.59%
11:3023291214212588000610440498.61%
11:0024551216207584000600452298.67%
10:3025361221231579000600462798.7%

What each fuel earned — 2026-10-18

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
Hydro36,499$29.38$1,072,33049.9%
Geothermal18,065$43.74$790,16436.8%
Wind4,711$39.74$187,2148.7%
Solar3,862$12.46$48,1262.2%
Co-Gen906$45.93$41,5931.9%
Battery122$82.36$10,0500.5%
Gas2$68.58$1630.0%
Total64,167$33.50$2,149,640

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

Last problem: 2026-10-18T22:00 — carbon (saving): D1_ERROR: Your account has exceeded D1's free tier daily row write limit. Upgrade to a paid plan or wait until tomorrow (midnight UTC) to continue. See https://developers.cloudflare.com/d1/platform/limits/ for more details. | node_prices (saving): D1_ERROR: Your account has exceeded D1's free tier daily row write limit. Upgrade to a paid plan or wait until tomorrow (midnight UTC) to continue. See https://developers.cloudflare.com/d1/platform/limits/ for more details. | wind_solar (saving): D1_ERROR: Your account has exceeded D1's free tier daily row write limit. Upgrade to a paid plan or wait until tomorrow (midnight UTC) to continue. See https://developers.cloudflare.com/d1/platform/limits/ for more details. | fuel_daily (saving): D1_ERROR: Your account has exceeded D1's free tier daily row write limit. Upgrade to a paid plan or wait until tomorrow (midnight UTC) to continue. See https://developers.cloudflare.com/d1/platform/limits/ for more details. | poc_prices (saving): D1_ERROR: Your account has exceeded D1's free tier daily row write limit. Upgrade to a paid plan or wait until tomorrow (midnight UTC) to continue. See https://developers.cloudflare.com/d1/platform/limits/ for more details.

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