An independent, open check on New Zealand's power system: what's generating, what it costs, and where your bill goes.
Saved 1960 price readings and 138 generation readings since 2026-10-17.
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| Demand (load) | 3,668 MW · North 2,193 · South 1,475 |
| Cook Strait cable (HVDC) | 205 MW South → North (limit 1200 MW, 17% used) |
| Renewable | 97.86% |
| Carbon | 37.43 g CO₂/kWh · month avg 33.4 · year avg 45.71 |
| Reserve prices North | $0.13 fast / $0.12 sustained |
| Reserve prices South | $0.1 fast / $0.11 sustained |
Load as at 2026-10-21 04:55. HVDC as at 2026-10-21 04:00.
Half-hour ending 21/10/2026, 4:30:00 am (trading period 10). $ per MWh, and cents per kWh — before lines, retail and GST.
| Auckland | $1.62 | 0.2c |
| Hamilton | $1.62 | 0.2c |
| Northland | $1.62 | 0.2c |
| Edgecumbe | $1.54 | 0.2c |
| Hawkes Bay | $1.54 | 0.2c |
| Nelson | $1.52 | 0.2c |
| Taranaki | $1.51 | 0.2c |
| Bunnythorpe | $1.48 | 0.1c |
| Christchurch | $1.46 | 0.1c |
| Wellington | $1.42 | 0.1c |
| West Coast | $1.42 | 0.1c |
| Canterbury | $1.39 | 0.1c |
| Otago | $1.37 | 0.1c |
| Southland | $1.31 | 0.1c |
One reading every half-hour. Hover for the numbers. Gaps mean no reading was saved.
As at 21 Oct 2026 04:00 · total 3698 MW · renewable 97.86%
| Source | MW | Share |
|---|---|---|
| Hydro | 1675 | 45.3% |
| Geothermal | 1234 | 33.4% |
| Wind | 710 | 19.2% |
| Co-Gen | 55 | 1.5% |
| Coal | 25 | 0.7% |
| Battery | 0 | 0.0% |
| Gas | 0 | 0.0% |
| Diesel/Oil | 0 | 0.0% |
| Solar | 0 | 0.0% |
Each bar is one half-hour, newest on the right. Bar height = total power being made. Hover a bar for the numbers.
| Time | Hydro | Geo | Wind | Solar | Gas | Coal | Oil | Co-Gen | Battery | Total | Renew. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 04:00 | 1675 | 1234 | 710 | 0 | 0 | 25 | 0 | 55 | 0 | 3698 | 97.86% |
| 03:30 | 1678 | 1234 | 712 | 0 | 0 | 16 | 0 | 55 | 0 | 3695 | 98.07% |
| 03:00 | 1684 | 1232 | 731 | 0 | 0 | 8 | 0 | 57 | 0 | 3713 | 98.25% |
| 02:30 | 1761 | 1222 | 735 | 0 | 0 | 0 | 0 | 54 | 0 | 3773 | 98.56% |
| 02:00 | 1745 | 1220 | 722 | 0 | 0 | 0 | 0 | 56 | 0 | 3744 | 98.5% |
| 01:30 | 1864 | 1218 | 748 | 0 | 0 | 0 | 0 | 55 | 0 | 3885 | 98.58% |
| 01:00 | 1883 | 1216 | 717 | 0 | 0 | 0 | 0 | 55 | 0 | 3872 | 98.57% |
| 00:30 | 2010 | 1239 | 694 | 0 | 0 | 0 | 0 | 56 | 0 | 3998 | 98.6% |
| 00:00 | 2159 | 1244 | 674 | 0 | 0 | 0 | 0 | 57 | 0 | 4134 | 98.63% |
| 23:30 | 2347 | 1241 | 651 | 0 | 0 | 24 | 0 | 58 | 0 | 4321 | 98.1% |
| 23:00 | 2478 | 1240 | 623 | 0 | 17 | 90 | 0 | 58 | 0 | 4507 | 96.33% |
| 22:30 | 2623 | 1241 | 564 | 0 | 95 | 110 | 0 | 58 | 0 | 4692 | 94.38% |
| 22:00 | 2887 | 1240 | 526 | 0 | 95 | 146 | 0 | 58 | 0 | 4952 | 93.96% |
| 21:30 | 3140 | 1239 | 446 | 0 | 96 | 176 | 0 | 58 | 1 | 5155 | 93.61% |
| 21:00 | 3379 | 1235 | 316 | 0 | 96 | 179 | 0 | 58 | 29 | 5291 | 93.68% |
| 20:30 | 3410 | 1234 | 230 | 0 | 96 | 181 | 0 | 58 | 61 | 5270 | 93.59% |
| 20:00 | 3553 | 1232 | 146 | 0 | 96 | 179 | 0 | 59 | 61 | 5326 | 93.67% |
| 19:30 | 3449 | 1228 | 161 | 3 | 96 | 177 | 0 | 54 | 111 | 5279 | 93.67% |
| 19:00 | 3387 | 1222 | 202 | 23 | 96 | 176 | 0 | 55 | 68 | 5229 | 93.67% |
| 18:30 | 3307 | 1215 | 217 | 63 | 96 | 179 | 0 | 55 | 96 | 5227 | 93.57% |
| 18:00 | 3281 | 1210 | 215 | 118 | 96 | 177 | 0 | 51 | 43 | 5192 | 93.7% |
| 17:30 | 3140 | 1208 | 207 | 229 | 96 | 177 | 0 | 52 | 24 | 5132 | 93.65% |
| 17:00 | 2915 | 1207 | 217 | 318 | 96 | 174 | 0 | 50 | 0 | 4977 | 93.57% |
| 16:30 | 2789 | 1205 | 231 | 356 | 96 | 155 | 0 | 50 | 0 | 4883 | 93.84% |
| 16:00 | 2672 | 1203 | 243 | 402 | 96 | 122 | 0 | 50 | 0 | 4789 | 94.4% |
| 15:30 | 2544 | 1197 | 251 | 437 | 96 | 119 | 0 | 50 | 0 | 4693 | 94.37% |
| 15:00 | 2485 | 1186 | 246 | 444 | 96 | 102 | 0 | 49 | 0 | 4608 | 94.65% |
| 14:30 | 2468 | 1176 | 254 | 450 | 96 | 99 | 0 | 49 | 0 | 4591 | 94.7% |
| 14:00 | 2452 | 1175 | 251 | 448 | 96 | 76 | 0 | 48 | 0 | 4545 | 95.17% |
| 13:30 | 2507 | 1178 | 243 | 445 | 96 | 38 | 0 | 47 | 0 | 4553 | 96.04% |
| 13:00 | 2558 | 1195 | 238 | 449 | 96 | 13 | 0 | 49 | 0 | 4598 | 96.56% |
| 12:30 | 2625 | 1196 | 252 | 451 | 96 | 0 | 0 | 50 | 0 | 4670 | 96.89% |
| 12:00 | 2672 | 1208 | 237 | 447 | 96 | 0 | 0 | 51 | 0 | 4710 | 96.88% |
| 11:30 | 2769 | 1209 | 205 | 450 | 96 | 0 | 0 | 48 | 0 | 4777 | 97% |
| 11:00 | 2895 | 1202 | 200 | 437 | 96 | 0 | 0 | 49 | 0 | 4880 | 97.03% |
| 10:30 | 2961 | 1208 | 207 | 412 | 96 | 0 | 0 | 49 | 0 | 4932 | 97.07% |
| 10:00 | 3015 | 1211 | 215 | 439 | 96 | 0 | 0 | 49 | 0 | 5025 | 97.12% |
| 09:30 | 3221 | 1218 | 236 | 352 | 96 | 0 | 0 | 46 | 0 | 5169 | 97.27% |
| 09:00 | 3465 | 1221 | 252 | 325 | 96 | 0 | 0 | 42 | 0 | 5401 | 97.45% |
| 08:30 | 3630 | 1225 | 267 | 301 | 96 | 0 | 0 | 48 | 0 | 5567 | 97.42% |
| 08:00 | 3858 | 1229 | 334 | 192 | 95 | 0 | 0 | 48 | 0 | 5757 | 97.51% |
| 07:30 | 3924 | 1233 | 350 | 96 | 96 | 0 | 0 | 48 | 19 | 5766 | 97.5% |
| 07:00 | 3749 | 1234 | 333 | 39 | 95 | 0 | 0 | 48 | 70 | 5568 | 97.39% |
| 06:30 | 3423 | 1233 | 307 | 8 | 93 | 0 | 0 | 50 | 54 | 5168 | 97.2% |
| 06:00 | 3134 | 1235 | 283 | 0 | 41 | 0 | 0 | 53 | 34 | 4778 | 98.03% |
| 05:30 | 2755 | 1236 | 264 | 0 | 0 | 0 | 0 | 53 | 18 | 4325 | 98.77% |
| 05:00 | 2543 | 1237 | 250 | 0 | 0 | 0 | 0 | 54 | 0 | 4083 | 98.68% |
| 04:30 | 2317 | 1238 | 254 | 0 | 0 | 0 | 0 | 57 | 0 | 3866 | 98.53% |
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.
| Fuel | MWh | Avg $/MWh | Earned | Share |
|---|---|---|---|---|
| Hydro | 69,308 | $31.50 | $2,183,216 | 47.4% |
| Geothermal | 29,306 | $59.60 | $1,746,610 | 38.0% |
| Wind | 6,197 | $36.92 | $228,778 | 5.0% |
| Gas | 3,040 | $66.93 | $203,473 | 4.4% |
| Solar | 4,066 | $26.66 | $108,408 | 2.4% |
| Co-Gen | 1,259 | $63.25 | $79,634 | 1.7% |
| Battery | 410 | $125.25 | $51,399 | 1.1% |
| Total | 113,586 | $40.51 | $4,601,518 |
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.
| Month | Place | Wholesale | Lines | Retailer & other | Bill price |
| First summary appears on the 1st of next month | |||||
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.