Δ
TOP
Taiwan Power Company

First Nuclear Power Plant decommissioning plan

Index > Information Disclosure > Environmental Information > First Nuclear Power Plant decommissioning plan

Plan Description

The decommissioning of Taipower’s nuclear power plants is handled in accordance with the government’s energy policy plans and the relevant laws and regulations. According to the “Enforcement Rules for the Implementation of Nuclear Reactor Facilities Regulation Act,” the decommissioning of nuclear power plants must be completed within 25 years upon obtaining a decommissioning permit issued by the competent authority, and the plant site must be re-developed. 
The decommissioning process is mainly divided into four phases, beginning from the day after the expiration of the operating license for the first nuclear reactor, until 25 years after the expiration of the operating license for the second nuclear reactor.

 

In accordance with the provisions of the “Nuclear Reactor Facilities Regulation Act,” the decommissioning plan for the two reactors of the First Nuclear Power Plant must be submitted three years before the decommissioning process, which can be implemented after the plan is approved. 
At present, based on the validity period of the operating license of the First Nuclear Power Plant, preliminary investigation and operation planning are underway. 
On November 25th, 2015, the decommissioning plan for the First Nuclear Power Plant was sent to the Atomic Energy Council, Taiwan, for review.

 

Strict environmental protection measures will be formulated as part of the plan and adequately implemented, so as to protect the quality of the environment. 
As part of the plan, various safety assessments will be carried out. Various contingency plans in the event of emergency will be drawn up and adequately implemented, so as to ensure the safety of decommissioning operations and protect public health. 
Taipower values local public opinion, and will continue to maintain good communication with local governments, as well as take the residents’ opinions and concerns into consideration.

 

Brief introduction of international decommissioning strategy

According to the “Final Generic Environmental Impact Statement (GEIS) on Decommissioning of Nuclear Facilities” report in NUREG-0586, there are three possible options of decommissioning methods for nuclear power plants: immediate decontamination (DECON), safe storage (SAFSTOR), and long-term storage (ENTOMB). An overview of each model is as follows:
DECON: After the power plant has permanently halted operations, the equipment, structures, facilities, and soil contaminated by radioactivity will be decontaminated and dismantled within a short period of time.
SAFSTOR: After a long period of safe storage of nuclear energy facilities, decontamination and dismantling works are carried out. During the period of storage, most of the power plant facilities are left intact, but the nuclear fuel is removed from the reactor, and radioactive liquids are treated and discharged using the relevant systems and equipment. The attenuation effect of radioactivity after long-term storage helps to reduce the activity of radioactive pollutants.
ENTOMB: Radioactive structures, systems, and equipment are sealed in durable containment barriers (such as concrete barriers), and the suitable maintenance and monitoring are conducted for the barrier structures.

Site comparison map of Yankee Rowe nuclear reactor before and after decommissioning 

Maine Yankee Nuclear Power Plant site before decommissioning

Current status of Maine Yankee Nuclear Power Plant site after decommissioning (ISFSI ONLY)

 

Decommissioning status of the United Kingdom: 

The Nuclear Decommissioning Authority (NDA) was established in 2005 to take charge of the decommissioning of civilian nuclear energy facilities in the UK. 
26 of the 30 decommissioned units in the United Kingdom were early Magnox reactors that used graphite as a moderator. Due to the unique nature of this type of reactor, the decommissioning method of safe storage was adopted for the reactor buildings.