GridCheck NZ

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

Saved 2968 price readings and 210 generation readings since 2026-10-17.

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Right now

Demand (load)4,844 MW · North 3,051 · South 1,793
Cook Strait cable (HVDC)639 MW South → North (limit 809 MW, 79% used)
Renewable98.8%
Carbon23.39 g CO₂/kWh · month avg 34.08 · year avg 45.7
Reserve prices North$0.99 fast / $1 sustained
Reserve prices South$0.11 fast / $0.11 sustained

Load as at 2026-10-22 16:55. HVDC as at 2026-10-22 16:00.

Wholesale price now

Half-hour ending 22/10/2026, 4:30:00 pm (trading period 34). $ per MWh, and cents per kWh — before lines, retail and GST.

Northland$47.894.8c
Auckland$47.794.8c
Hamilton$46.264.6c
Hawkes Bay$44.104.4c
Edgecumbe$43.864.4c
Taranaki$42.314.2c
Bunnythorpe$41.494.1c
Wellington$39.243.9c
Nelson$38.043.8c
Christchurch$37.703.8c
West Coast$37.453.7c
Canterbury$36.003.6c
Otago$35.113.5c
Southland$33.923.4c

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$100$200$300$40018:0021:0000:0003:0006:0009:0012:0015:00

Generation mix now

As at 22 Oct 2026 16:00 · total 5011 MW · renewable 98.8%

SourceMWShare
Hydro266653.2%
Geothermal109321.8%
Wind81716.3%
Solar3426.8%
Co-Gen601.2%
Battery330.7%
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
01,0002,0003,0004,0005,0006,000MW18:0021:0000:0003:0006:0009:0012:0015:00
Show as a table
TimeHydroGeoWindSolarGasCoalOilCo-GenBatteryTotalRenew.
16:00266610938173420006033501198.8%
15:3026131083835414000600500598.81%
15:0024211033884422000590481998.77%
14:302517998882421000601488098.77%
14:0025041000871405000615484698.75%
13:30237410038504077006139474198.54%
13:00248710098214186180590486397.39%
12:302470101680442261540580488496.46%
12:002527102581840462510600494896.49%
11:302479102983238595510610493295.8%
11:002602103579637195510570500795.94%
10:302568103880739498510590501595.86%
10:0026131040814389107500594507695.75%
09:3027401040774365153520574518694.93%
09:00291610457183321988105613535993.73%
08:30309010447052591981100512545993.42%
08:003262104669518619814105330561192.97%
07:303358104866511819814105065564493.01%
07:00328210496565319114404959548392.92%
06:3031061052608111911350480515292.73%
06:00284110525580187930470477993.16%
05:30259710555250144300470439994.98%
05:0024501055492014400460418695.46%
04:3021861055484014000460391195.26%
04:002145105645109500460379396.27%
03:302159105540309500470375996.22%
03:002190105436509600470375196.2%
02:302200105434509600470374296.18%
02:002212105233009500472373996.18%
01:302295104830309500470378996.24%
01:002409104726009500470385996.3%
00:3025191045255010000480396696.28%
00:0026691044238014200490414195.38%
23:3028611046212014600490431495.48%
23:0030771045159019300500452594.63%
22:3032331041144023700551471093.81%
22:0034691040168023670571497793.97%
21:30365110371900225560574522093.52%
21:003850103316601751020564538793.81%
20:303784102813201891410571533292.72%
20:0037641023132018914205758536692.7%
19:30363910411373189122059138532792.89%
19:003523110416628189100058114528393.28%
18:303446110019483184102058110527893.35%
18:003348109724216313610205771521694.25%
17:30324410932792549610305536516195.05%
17:003041109031633495990551503195.05%
16:3029791098315334817605533497095.72%

What each fuel earned — 2026-10-21

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
Hydro67,299$44.60$3,001,53241.8%
Geothermal27,000$100.46$2,712,38337.7%
Gas3,708$154.93$574,5338.0%
Wind10,307$36.47$375,8855.2%
Solar3,694$78.28$289,1484.0%
Co-Gen1,322$110.60$146,2252.0%
Battery504$170.15$85,8101.2%
Total113,834$63.12$7,185,516

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: 2026-10-19T14:00 — fuel_daily (saving): D1_ERROR: Network connection lost.

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