Garigliano Nuclear Power Plant
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| Garigliano Nuclear Power Plant | |
|---|---|
 Garigliano Nuclear Power Plant in 1970 | |
 | |
| Country |
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| Coordinates | 41°15′31″N 13°50′06″E / 41.25849°N 13.83492°E |
| Status | Being decommissioned |
| Commission date | January 1, 1964 |
| Decommission date | March 1, 1982 |
| Operator(s) | |
| Nuclear power station | |
| Reactor type | BWR |
| Power generation | |
| Units decommissioned | 1 × 150 MW |
| Nameplate capacity | 150 MW |
| External links | |
| Commons | Related media on Commons |
Garigliano Nuclear Power Plant was a nuclear power plant located at Sessa Aurunca (Campania), in southern Italy. It was named after the river Garigliano.
Consisting of one 150MWe BWR from General Electric, it operated from 1964 until 1982. First criticality was on 5 June 1963, with grid connection 1 January 1964 and full commercial operation from 1 June in that year. Garigliano was in 1964 the fourth BWR ever worldwide commercial operated, and had the second highest MW-capacity after Dresden Nuclear Power Plant unit 1.
Final shutdown was on 1 March 1982 and the plant was handed to the Italian nuclear decommissioning authority SOGIN on 1 November 1999.[1] Decommissioning is expected to take 27 years, with the total bill expected to reach $432.4 million.[2]
History[edit]
The plant was built from November 1, 1959 to January 1, 1964 by Società Elettronucleare Nazionale.
On the 1st of June, 1964, the plant began the production of energy for commercial use. In 1965 ENEL took property of the structure officially.
In 1978 the reactor was shut down and the production of energy ceased. The reactor was officially switched off on the 1st of March, 1982. During its lifetime the plant has produced 12,5 billion kWh of electric energy.
In 1987 some of the spent fuel rods were sent to Sellafield, England, to be reprocessed. The remaining fuel rods were kept in storage in Deposito Avogadro and in 2011 sent to La Hauge, France to be reprocessed also.
In 1999 the property of the plant was transfered to SOGIN, which began to dismantle the plant: the decomissioning is set to end in 2026.
Once reached the brown field status in 2026, the sphere and part of the structure will become a museum, in context of industrial archeology.
Instead the radioactive waste will remain on-site until its removal for permanent storage, and the deposits will be demolished.
Decommissioning[edit]
Installation of the new water treatment system (radwaste)[edit]
Because of the need to treat liquid waste produced during the dismantling , between 2014 and 2021 SOGIN built a new radwaste to replace the old one which was used during the plant's operating life.
In 2023 the new radwaste was used to treat the radioactive mud stored in tanks of the old radwaste system ( tanks T12, T13 and T26).[3]
Clean-up of trenches[edit]
During the late 1960s the burial of very low-level radiactive waste produced by the plant (such as contaminated protective clothing) was authorized. Three trenches were filled with waste.
In 2014 began the remediation of trench 2 and trench 3. In 2017 the reclamation of trench 1 started also. The clean-up ended in 2021.
All of the waste was then moved to the temporary deposit named D1. [4][5]
Dismantling of the central chimney[edit]
Sogin began dismantling the 95-meters-high (312 feet) concrete chimney in March 2014. First the structure had been decontaminated, then it was completly demolished in November 2017[6].The old chimney has now been replaced with a new 34-meter-high (112 feet) steel chimney.
Dismantling of the water tower[edit]
On October 30, 2023, the works to dismantle the old water tower begun.[7]
The dismantling was completed on February 4, 2024. 1900 metric tons of non-radioactive material (2094 US tons) were produced due of the demolition, later sent to be recycled.[8][9]
Dismantling of the systems of the turbine hall[edit]
Still uncompleted.
Dismantling of the reactor[edit]
Still uncompleted.
On-site radioactive waste storage[edit]
Because of the increasing amount of waste generated due the decommissioning, two on-site deposits, realized between 2007 and 2013, were allocated to the mid-term storage of radioactive waste, waiting for its definitive storage in the National Repository of Radioactive Waste (which it hasn't been built yet).
- Temporary deposit ex-diesel: the former emergency building that used to contain the diesel generators of the nuclear plant, now it stores 957 cubic meters of waste.[10]Maximum capacity: 960 cubic meters.
- Temporay deposit D1: it stores 424 cubic meters of waste. Maximum capacity: 1100 cubic meters.
A third temporary deposit, named D2, is now being built and it is going to be finished in 2025.[11]
Some radioactive waste is being kept in steel drums outside the plant, waiting to be stored in the deposits.
| Very low-level activity waste | Low-level activity waste | Mid-level activity waste | High-level activity waste | |
|---|---|---|---|---|
| Cubic meters | 1273 | 1138 | 85 | 0 |
The total amount was 2406 cubic meters in 2022.[12]
References[edit]
- ^ Rappazzo, Nicola (2011). "CSR Management: The Case of the SOGIN CSR Unit". In Calabrò, Grazia; D'Amico, Augusto; Lanfranchi, Maurizio; Moschella, Giovanni; Pulejo, Luisa; Salomone, Roberta (eds.). Moving from the Crisis to Sustainability: Emerging Issues in the International Context. Milano: FrancoAngeli. pp. 303–312. ISBN 978-8-85684-705-5.
- ^ Cha, Hyungi; Yoon, Yongbeum; Park, Soojin (2021). "A Study on the Determinants of Decommissioing Cost for Nuclear Power Plant (NPP)". Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT). 19 (1): 87–111. doi:10.7733/jnfcwt.2021.19.1.87. S2CID 234825052.
- ^ "Implementation of the new radioactive liquid effluent treatment system (Radwaste)".
- ^ "Bonifica delle trincee".
- ^ "Remediation of trenches".
- ^ "Demolition of chimney at Italian plant completed". World nuclear news. 15 November 2017.
- ^ "Gruppo Sogin, iniziata la demolizione della torre idrica della centrale del Garigliano". 30 October 2023.
- ^ "Garigliano, terminata la demolizione della torre idrica". 5 February 2024.
- ^ "Demolition of the water tower".
- ^ As of the 31st of December, 2022
- ^ "Construction of D2 temporary storage facility".
- ^ "Gestione dei rifiuti radiattivi".
External links[edit]
- Nuclear power in Italy Archived 2020-06-11 at the Wayback Machine at the WNA site.
- Nuclear power profile of Italy at the NEA site.
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