Power and water
Daily power reserve and reservoir records from official sources.
Electricity reserve
Operating reserve is Taipower's net peak supply capability less instantaneous peak load. Its percentage divides that reserve by instantaneous peak load. Taipower describes green at 10% or above and yellow from 6% to under 10% (Taipower definitions); the historical daily file has no colour field. Historical light labels are calculated from these thresholds; the most recent available day can show Taipower’s published indicator. Earlier peak loads derived from the rounded reserve and percentage fields are approximate.
Latest yearSame dates a year earlier
| Date | Reserve margin | Same date a year earlier | Taipower light threshold | Reserve MW | Peak load MW |
|---|---|---|---|---|---|
| 2026-10-12 | 20.6% | 9.0% | Green (10% or above) (calculated) | 7,447 | 36,238 |
| 2026-10-13 | 19.7% | 15.0% | Green (10% or above) (calculated) | 7,203 | 36,582 |
| 2026-10-14 | 28.9% | 13.9% | Green (10% or above) (calculated) | 10,292 | 35,649 |
| 2026-10-15 | 26.8% | 14.8% | Green (10% or above) (calculated) | 9,666 | 36,000 |
| 2026-10-16 | 17.0% | 15.1% | Green (10% or above) (calculated) | 6,403 | 37,776 |
| 2026-10-17 | 27.6% | 13.2% | Green (10% or above) (calculated) | 9,408 | 34,099 |
| 2026-10-18 | 11.7% | 22.8% | Green (10% or above) (calculated) | 3,800 | 32,451 |
| 2026-10-19 | 17.4% | 16.5% | Green (10% or above) (calculated) | 6,742 | 38,703 |
| 2026-10-20 | 19.5% | 20.1% | Green (10% or above) (calculated) | 7,639 | 39,114 |
| 2026-10-21 | 22.3% | 19.9% | Green (10% or above) (calculated) | 8,529 | 38,315 |
| 2026-10-22 | 25.0% | 16.5% | Green (10% or above) (calculated) | 8,942 | 35,725 |
| 2026-10-23 | 27.4% | 16.9% | Green (10% or above) (calculated) | 8,107 | 29,534 |
| 2026-10-24 | 16.8% | 25.7% | Green (10% or above) (calculated) | 4,959 | 29,553 |
| 2026-10-25 | 24.5% | 10.0% | Green (10% or above) (calculated) | 7,176 | 29,254 |
| 2026-10-26 | 45.6% | 10.6% | Green (10% or above) (calculated) | 13,703 | 30,031 |
| 2026-10-27 | 27.0% | 17.5% | Green (10% or above) (calculated) | 9,210 | 34,098 |
| 2026-10-28 | 25.9% | 20.7% | Green (10% or above) (calculated) | 8,813 | 34,001 |
| 2026-10-29 | 19.1% | 23.0% | Green (10% or above) (calculated) | 6,627 | 34,678 |
| 2026-10-30 | 16.5% | 21.2% | Green (10% or above) (calculated) | 5,778 | 35,082 |
| 2026-10-31 | 26.1% | 28.2% | Green (10% or above) (calculated) | 7,969 | 30,533 |
| 2026-11-01 | 10.3% | 11.4% | Green (10% or above) (calculated) | 3,174 | 30,726 |
| 2026-11-02 | 18.8% | 16.2% | Green (10% or above) (calculated) | 6,706 | 35,632 |
| 2026-11-03 | 21.0% | 25.8% | Taipower: Green (G) | 7,366 | 35,110 |
| 2026-11-04 | 22.0% | 24.5% | Taipower: Green (G) | 7,974 | 36,262 |
| 2026-11-05 | 20.5% | 17.3% | Taipower: Green (G) | 7,503 | 36,529 |
| 2026-11-06 | 22.1% | 20.7% | Taipower: Green (G) | 7,842 | 35,420 |
| 2026-11-07 | 32.6% | 19.0% | Taipower: Green (G) | 10,194 | 31,260 |
| 2026-11-08 | 17.2% | 11.6% | Taipower: Green (G) | 5,191 | 30,110 |
| 2026-11-09 | 27.9% | 15.3% | Taipower: Green (G) | 9,414 | 33,790 |
| 2026-11-10 | 26.7% | 11.4% | Taipower: Green (G) | 8,363 | 31,276 |
Generation mix
Monthly national gross generation, including private producers and self-generation. Shares are calculated against national total generation, including pumped storage. Latest month: Sep 2026.
| Source | GWh | Share |
|---|---|---|
| Coal | 7,597.0 | 29.9% |
| Gas | 13,610.3 | 53.6% |
| Oil | 277.4 | 1.1% |
| Nuclear | 0.0 | 0.0% |
| Conventional hydro | 501.6 | 2.0% |
| Solar | 1,634.1 | 6.4% |
| Wind | 1,174.6 | 4.6% |
| Other renewables | 360.9 | 1.4% |
| Pumped storage | 226.2 | 0.9% |
CoalGasConventional hydroNuclearOilOther renewablesPumped storageSolarWind
Latest real-time snapshot · 2026-11-11 22:00:00
Taipower's unit feed updates every 10 minutes. Stored at most once per hour.
Current system load: 28,162 MW · 2026-11-11 22:00:00 (hour of observation).
| Fuel | Net generation |
|---|---|
| Real-time Coal generation | 7,648 MW |
| Real-time Gas generation | 15,202 MW |
| Real-time Oil generation | 217 MW |
| Real-time Conventional hydro generation | 422 MW |
| Real-time Solar generation | 0 MW |
| Real-time Wind generation | 3,071 MW |
| Real-time Other renewables generation | 41 MW |
| Real-time cogeneration | 990 MW |
Electricity tariffs
Official review dates and links are shown below. Tariff figures are not available from these parsed source pages.
| Review date | Source |
|---|---|
| 27 Jun 2022 | Official notice |
| 17 Mar 2023 | Official notice |
| 22 Mar 2024 | Official notice |
| 30 Sep 2024 | Official notice |
| 19 Sep 2025 | Official notice |
| 27 Mar 2026 | Official notice |
| 18 Sep 2026 | Official notice |
Related official announcement: 15 Mar 2023 · MOEA
Reservoirs
Reservoirs in the counties of the Hsinchu, Central and Southern science parks, grouped by county. Storage is the WRA's effective storage (10,000 m³); percentage is calculated against the latest effective capacity in WRA reservoir basic information.
| Reservoir | Location display | Date | Storage | Capacity % | 7 days | Same date a year earlier |
|---|---|---|---|---|---|---|
| Zengwen | Chiayi · county only | 11 Nov 2026 | 42,093 | 83.4 | +0.5% | – |
| Baoshan | Hsinchu · county only | 11 Nov 2026 | 506 | 101.0 | +6.3% | – |
| Baoshan II | Hsinchu · county only | 11 Nov 2026 | 3,389 | 106.8 | -0.1% | – |
| Yonghe Shan | Miaoli · county only | 11 Nov 2026 | 3,015 | 100.7 | +1.2% | – |
| Liyutan | Miaoli · county only | 11 Nov 2026 | 11,350 | 98.3 | -1.4% | – |
| Deji | Taichung · county only | 11 Nov 2026 | 17,879 | 95.1 | -0.1% | – |
| Nanhua | Tainan · county only | 11 Nov 2026 | 7,806 | 87.5 | -2.2% | – |
| Wushantou | Tainan · county only | 11 Nov 2026 | 5,837 | 74.4 | -18.6% | – |
| Shimen | Taoyuan · county only | 11 Nov 2026 | 20,552 | 100.5 | +0.0% | – |
Chiayi
Hsinchu
BaoshanBaoshan II
Miaoli
Yonghe ShanLiyutan
Taichung
Tainan
NanhuaWushantou
Taoyuan
Water-supply status by region
| Supply region | WRA wording | Date |
|---|---|---|
| 南投縣 | 水情正常 | 2021-06-30 |
| 台中地區 | 水情稍緊 | 2026-04-27 |
| 台中市及彰化縣北部地區 | 水情稍緊 | 2024-03-19 |
| 台北市及新北市部分地區 | 水情正常 | 2016-12-05 |
| 台南市 | 水情稍緊 | 2023-08-07 |
| 嘉義縣(市) | 一階限水 | 2023-07-31 |
| 基隆市及新北市汐止區 | 水情稍緊 | 2022-09-05 |
| 屏東縣北部地區 | 二階限水 | 2012-07-18 |
| 彰化縣南部地區 | 水情正常 | 2021-06-30 |
| 新北市板新地區 | 水情稍緊 | 2022-09-03 |
| 新北市部分地區 | 水情稍緊 | 2022-09-03 |
| 新竹地區 | 水情稍緊 | 2026-04-27 |
| 新竹縣(市) | 水情稍緊 | 2024-03-19 |
| 桃園市及新北市林口區 | 水情稍緊 | 2024-03-19 |
| 澎湖縣 | 水情稍緊 | 2021-07-27 |
| 苗栗縣 | 水情稍緊 | 2024-03-19 |
| 連江縣 | 一階限水 | 2021-07-27 |
| 金門縣 | 水情稍緊 | 2015-07-13 |
| 雲林縣 | 水情正常 | 2021-06-30 |
| 高雄市 | 水情稍緊 | 2023-06-12 |
Sources and definitions
Taipower daily reserve: dataset 24945. Peak load and daily supply: dataset 19995. Current-year reserve history: dataset 25850. Monthly generation: dataset 112650. Real-time unit generation: dataset 8931. Taipower's system feed provides yesterday's actual peak values and the current load. Today's peak figures in that feed are forecasts and are excluded. Reservoir records: dataset 45501; effective capacities: dataset 32726. WRA water notices: dataset 36695. Sources may revise published data; revised daily values replace previously stored values. Reservoir history and science-park supply relationships are not established by the linked open files; locations are shown by county only.
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