Nuclear power in Taiwan accounts for 5,000 MWe of capacity (3 plants with 6 reactors), i.e. around 8% of its national energy consumption, and 19% of its electricity generation as of 2015. A Fourth Plant was built near Taipei but is stalled since 2014. There are plans to shut all nuclear reactors by 2025 (as in Germany and South Korea). .
Organized action against nuclear power can be found in Taiwan as far back asChernobyl in 1986, during a time when anti-nuclear and pro-democracy forces found common cause in opposing the Nationalist Party, or Kuomintang (KMT). The KMT, which ruled Taiwan under martial law for decades, had constructed three nuclear power plants, with designs for a fourth underway. The Democratic Progressive Party (DPP) incorporated opposition to nuclear energy into their political platform, and as such, many activists were encouraged when the DPP’s Chen Shui-bian won the 2000 election. Their hope was that the transfer of power would not only end a half-century of continuous KMT rule but terminate Taiwan’s nuclear energy program for good.
Indeed, Chen’s administration halted construction of Taiwan’s fourth nuclear power plant immediately after coming into power. However, the hope proved short lived. Months later, Chen walked back on his promise and allowed construction of the plant to resume. The move slowed the momentum of the anti-nuclear campaign. (1).
As reported by WISE in May 2014  Taiwan's government finally halted construction of the country's fourth nuclear power plant as a result of sustained public opposition and protest. Premier Jiang Yi-huah from the governing Kuomintang Party (KMT) announced on April 27, 2014 that one of the two General Electric-Hitachi Advanced Boiling Water Reactors at the Lungmen plant will be 'sealed' once safety checks are complete and before loading fuel, and construction of the second reactor – now 90% complete − will be halted immediately. Almost US$10 billion has been spent on the plant so far. There had been mass protests against nuclear power in Taiwan since the Fukushima disaster. In March 2013, around 200,000 Taiwanese people had participated in anti-nuclear protests. In March 2014, about 80,000 people protested against the Lungmen plant (and nuclear power generally) around the time of the Fukushima anniversary. In the days before the Premier's April 27 announcement, tens of thousands of protesters (some reports say 30,000, some say 50,000) broke through a police cordon and staged a sit-in along a main street near the central train station in Taipei. Following the announcement, many protesters left but hundreds remained, and police used water cannon to disperse them on Monday morning. More than 40 people suffered minor injuries. Five days before the April 27 2014 announcement, former Taiwanese opposition leader Lin Yi-hsiung, who led the Democratic Progressive Party (DPP) from 1998−2000, began a hunger strike to protest against the Lungmen plant. On April 30, Lin ended his fast and said: "Over the past half month, the people of Taiwan's outstanding display has been unprecedented, which leaves one feeling moved, full of admiration and deeply appreciative. Nuclear opponents should take a step forward to ensuring the No. 1, No. 2 and No. 3 nuclear power plants are closed on schedule."
The anti-nuclear protests followed other major mass campaigns, including a campaign that successfully pressured the government to stop construction of a petrochemical plant. The greatest single reason for opposition to the nuclear plant is that Taiwan is located in the seismically active Pacific Ring of Fire.
After several attempts at holding referendums on the fate of the so-called Fourth Nuclear Plant and mass demonstrations, the decision was taken to stop the plan even though it was finished and the fuel rods had been uploaded. By 2018 the issue was degrading into farce as German "experts" proposed that the Fourth Nuclear Plant be converted into a theme park (on the model of the stopped nuclear plant at Kalkar in Germany). Thus, it was reported that "German experts in nuclear power suggested that Taiwan can consider giving a new lease of life to the Lungmen Nuclear Power Plant (龍門核電廠), better known as the Fourth Nuclear Power Plant (核四), through transforming it into a theme park after it’s decommissioned. With the first batch of the plant’s fuel rods exported to the U.S. from Keelung Port on Jul. 4, and the rest scheduled to be removed from Taiwan by 2020, the fate of the energy generator never put into operation has sparked much discussion.A solution was put on the table by a group of German professionals from six corporations and institutions, who are visiting Taiwan in a program jointly organized by German Trade Office Taipei and Baden-Wurttemberg International. According to Oskar Grozinger, former head of the Nuclear Energy Supervision and Radiation Protection Department in Germany, the Kalkar nuclear power plant in Germany serves as a good example, which was completed but never put into service before it was repurposed to become a theme park called “Wunderland Kalkar.”.
The debate continues however, with some voices still in favour of putting the Fourth Nuclear Plant in operation. It seems that the main issue in 2018 is what to do with the unranium fuel rods. Press reports  of July 2018 stated that Taiwan’s state power company has dodged questions about the fate of 1,700-plus fuel rods containing uranium pellets after its ill-fated No-4 nuclear plant on the outskirts of Taipei was mothballed amid a groundswell of public opposition and the government’s plan to phase out nuclear-power generation. The island’s national grid operator, known as Taipower, has jsaid it has a three-year plan to process the bundles of unused fuel rods. There have been reports that General Electric, the contractor for the plant’s reactors, demanded that all rods be returned for disposal. The Taipei-based United Daily News revealed earlier this week that Taipower had already shipped 80 such rods from Keelung port and a second batch of 120 rods was expected to be sent in September.The paper said a US subcontractor,the North Carolina-based Global Nuclear Fuel Americas LLC, had been appointed and would be responsible for dismantling and storing the rods.