Onagawa 2 shut down on 11 March 2011 and is in the process of seeking clearance to restart, after the introduction of new regulatory requirements in 2013 by Japan's Nuclear Regulation Authority.
Details
| Reactor Type | Boiling Water Reactor (or BWR) |
|---|---|
| Model | BWR-5 |
| Owner | Tohoku Electric Power Co., Inc |
| Operator | Tohoku Electric Power Co., Inc |
Timeline
| Construction Start | Friday, 12 April 1991 |
|---|---|
| First Criticality | Wednesday, 2 November 1994 |
| First Grid Connection | Friday, 23 December 1994 |
| Commercial Operation | Friday, 28 July 1995 |
| Long-term Shutdown | Friday, 11 March 2011 |
Specifications
| Capacity Net | 796 MWe |
|---|---|
| Capacity Gross | 825 MWe |
| Thermal Capacity | 2436 MWt |
| Design Net Capacity | 796 MWe |
Operational History
Electricity Supplied (GWh)
Energy Availability Factor (%)
Total Electricity Supplied (GWh)
Reactor History
| Year | Reference Unit Power (MWe) | Annual Time Online (Hours) | Electricity Supplied (GWh) | Operation Factor (%) | Energy Availability Annual (%) | Energy Availability Cumulative (%) | Load Factor Annual (%) | Load Factor Cumulative (%) |
|---|---|---|---|---|---|---|---|---|
| 1994 | 796 | 123 | 15.25 | - | - | - | - | - |
| 1995 | 796 | 6510 | 4496.61 | 95.60 | 95.40 | 95.40 | 94.70 | 94.70 |
| 1996 | 796 | 6545 | 5175.27 | 74.50 | 74.40 | 80.60 | 74.00 | 80.10 |
| 1997 | 796 | 8760 | 6931.60 | 100.00 | 99.90 | 88.60 | 99.40 | 88.10 |
| 1998 | 796 | 7185 | 5647.72 | 82.00 | 81.10 | 86.40 | 81.00 | 86.00 |
| 1999 | 796 | 7383 | 5841.18 | 84.30 | 84.20 | 85.90 | 83.80 | 85.50 |
| 2000 | 796 | 7402 | 5858.59 | 84.30 | 84.20 | 85.60 | 83.80 | 85.20 |
| 2001 | 796 | 8238 | 6521.16 | 94.00 | 94.00 | 86.90 | 93.50 | 86.50 |
| 2002 | 796 | 6368 | 5242.91 | 72.70 | 72.40 | 85.00 | 75.20 | 85.00 |
| 2003 | 796 | 4139 | 3272.36 | 47.20 | 47.20 | 80.50 | 46.90 | 80.40 |
| 2004 | 796 | 8784 | 7040.38 | 100.00 | 100.00 | 82.50 | 100.70 | 82.60 |
| 2005 | 796 | 2367 | 1877.27 | 27.00 | 26.80 | 77.20 | 26.90 | 77.30 |
| 2006 | 796 | 3188 | 2484.73 | 36.40 | 35.60 | 73.60 | 35.60 | 73.60 |
| 2007 | 796 | 6491 | 5184.62 | 74.10 | 73.80 | 73.60 | 74.40 | 73.70 |
| 2008 | 796 | 8086 | 6453.43 | 92.00 | 91.80 | 74.90 | 92.30 | 75.10 |
| 2009 | 796 | 4330 | 3430.26 | 49.40 | 49.00 | 73.10 | 49.20 | 73.30 |
| 2010 | 796 | 7417 | 5905.54 | 84.70 | 84.40 | 73.90 | 84.70 | 74.00 |
| 2011 | 796 | 0 | 0.00 | 0.00 | 0.00 | 69.40 | 0.00 | 69.50 |
| 2012 | 796 | 0 | 0.00 | 0.00 | 0.00 | 65.40 | 0.00 | 65.50 |
| 2013 | 796 | 0 | 0.00 | 0.00 | 0.00 | 61.80 | 0.00 | 62.00 |
| 2014 | 796 | 0 | 0.00 | 0.00 | 0.00 | 58.60 | 0.00 | 58.80 |
| 2015 | 796 | 0 | 0.00 | 0.00 | 0.00 | 55.80 | 0.00 | 55.90 |
| 2016 | 796 | 0 | 0.00 | 0.00 | 0.00 | 53.20 | 0.00 | 53.30 |
| 2017 | 796 | 0 | 0.00 | 0.00 | 0.00 | 50.80 | 0.00 | 50.90 |
| 2018 | 796 | 0 | 0.00 | 0.00 | 0.00 | 48.60 | 0.00 | 48.70 |
| 2019 | 796 | 0 | 0.00 | 0.00 | 0.00 | 46.60 | 0.00 | 46.70 |
| 2020 | 796 | 0 | 0.00 | 0.00 | 0.00 | 44.80 | 0.00 | 44.90 |
| 2021 | 796 | 0 | 0.00 | 0.00 | 9.10 | 43.40 | 0.00 | 43.20 |