Tomari 1 shut down on 22 April 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 | Pressurised Water Reactor (or PWR) |
|---|---|
| Model | M (2-loop) |
| Owner | Hokkaido Electric Power Co., Inc. |
| Operator | Hokkaido Electric Power Co., Inc. |
Timeline
| Construction Start | Thursday, 18 April 1985 |
|---|---|
| First Criticality | Wednesday, 16 November 1988 |
| First Grid Connection | Tuesday, 6 December 1988 |
| Commercial Operation | Thursday, 22 June 1989 |
| Long-term Shutdown | Friday, 22 April 2011 |
Specifications
| Capacity Net | 550 MWe |
|---|---|
| Capacity Gross | 579 MWe |
| Thermal Capacity | 1650 MWt |
| Design Net Capacity | 550 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 (%) |
|---|---|---|---|---|---|---|---|---|
| 1988 | 550 | 375 | 54.96 | - | - | - | - | - |
| 1989 | 550 | 7095 | 3607.01 | 100.00 | 99.60 | 99.60 | 99.60 | 99.60 |
| 1990 | 550 | 7092 | 3830.69 | 81.00 | 79.50 | 86.20 | 79.50 | 86.20 |
| 1991 | 550 | 6588 | 3540.38 | 75.20 | 73.50 | 81.10 | 73.50 | 81.10 |
| 1992 | 550 | 6780 | 3646.36 | 77.20 | 75.90 | 79.60 | 75.50 | 79.50 |
| 1993 | 550 | 8760 | 4795.23 | 100.00 | 100.00 | 84.20 | 99.50 | 84.00 |
| 1994 | 550 | 7208 | 3903.95 | 82.30 | 81.40 | 83.60 | 81.00 | 83.40 |
| 1995 | 550 | 7175 | 3946.25 | 81.90 | 81.80 | 83.40 | 81.90 | 83.20 |
| 1996 | 550 | 6920 | 3750.44 | 78.80 | 78.10 | 82.70 | 77.60 | 82.40 |
| 1997 | 550 | 8760 | 4795.59 | 100.00 | 100.00 | 84.70 | 99.50 | 84.50 |
| 1998 | 550 | 7373 | 4239.09 | 84.20 | 83.10 | 84.50 | 88.00 | 84.80 |
| 1999 | 550 | 6986 | 4074.58 | 79.80 | 79.70 | 84.10 | 84.60 | 84.80 |
| 2000 | 550 | 7598 | 4168.52 | 86.50 | 86.50 | 84.30 | 86.30 | 84.90 |
| 2001 | 550 | 8760 | 4803.96 | 100.00 | 100.00 | 85.50 | 99.70 | 86.10 |
| 2002 | 550 | 7614 | 4177.26 | 86.90 | 86.90 | 85.60 | 86.70 | 86.20 |
| 2003 | 550 | 6893 | 3821.66 | 78.70 | 78.70 | 85.20 | 79.30 | 85.70 |
| 2004 | 550 | 6762 | 3788.84 | 77.00 | 77.00 | 84.60 | 78.40 | 85.20 |
| 2005 | 550 | 8616 | 4818.78 | 98.40 | 98.30 | 85.50 | 100.00 | 86.10 |
| 2006 | 550 | 7643 | 4236.75 | 87.20 | 86.90 | 85.50 | 87.90 | 86.20 |
| 2007 | 550 | 7121 | 3952.55 | 81.30 | 80.60 | 85.30 | 82.00 | 86.00 |
| 2008 | 550 | 5578 | 3111.15 | 63.50 | 63.10 | 84.10 | 64.40 | 84.90 |
| 2009 | 550 | 8760 | 4928.21 | 100.00 | 100.00 | 84.90 | 102.30 | 85.70 |
| 2010 | 550 | 7156 | 3994.56 | 81.70 | 81.30 | 84.70 | 82.90 | 85.60 |
| 2011 | 550 | 2664 | 1496.72 | 30.40 | 30.40 | 82.30 | 31.10 | 83.20 |
| 2012 | 550 | 0 | 0.00 | 0.00 | 0.00 | 78.80 | 0.00 | 79.60 |
| 2013 | 550 | 0 | 0.00 | 0.00 | 0.00 | 75.60 | 0.00 | 76.40 |
| 2014 | 550 | 0 | 0.00 | 0.00 | 0.00 | 72.60 | 0.00 | 73.40 |
| 2015 | 550 | 0 | 0.00 | 0.00 | 0.00 | 69.90 | 0.00 | 70.60 |
| 2016 | 550 | 0 | 0.00 | 0.00 | 0.00 | 67.40 | 0.00 | 68.00 |
| 2017 | 550 | 0 | 0.00 | 0.00 | 0.00 | 65.00 | 0.00 | 65.70 |
| 2018 | 550 | 0 | 0.00 | 0.00 | 0.00 | 62.80 | 0.00 | 63.40 |
| 2019 | 550 | 0 | 0.00 | 0.00 | 0.00 | 60.70 | 0.00 | 61.40 |
| 2020 | 550 | 0 | 0.00 | 0.00 | 0.00 | 58.80 | 0.00 | 59.40 |
| 2021 | 550 | 0 | 0.00 | 0.00 | 0.00 | 57.00 | 0.00 | 57.60 |