The first Hualong One nuclear power unit in south China’s Guangdong-Hong Kong-Macao Greater Bay Area officially entered commercial operation on Monday.

The newly commissioned Unit 1 of China General Nuclear Power Group (CGN) Guangdong Taipingling Nuclear Power Project achieved multiple key technological breakthroughs and completed 26 major design upgrades, according to engineers. It also marked the simultaneous completion and handover of both the physical plant and its integrated digital system.

Unit 1 is expected to generate more than nine billion kilowatt-hours of electricity annually, which is sufficient to meet the yearly power needs of around one million residents in the Greater Bay Area.

Zhang Guoqiang, head of CGN Huizhou Nuclear Power Project, said the project helps advance the nation’s carbon reduction drive.

“The clean energy output is equivalent to reducing carbon dioxide emissions by approximately 8.4 million tons or adding around 20,000 hectares of forest. Currently, Unit 1 has completed all performance tests and a 168-hour full-power continuous operation assessment. All parameters of the unit are normal and stable, and the unit is in good condition,” said Zhang.

The Taipingling Nuclear Power Project is planned to build six Hualong One units in three phases. Once fully completed, the project is expected to generate more than 55 billion kilowatt-hours of electricity annually.

“Hualong One” is China’s domestically developed third-generation nuclear reactor. The technology is considered vital in the country’s pursuit of improving its energy mix and meeting its dual carbon targets of peaking carbon emissions by 2030 and achieving carbon neutrality by 2060.

A spokesperson for the International Maritime Organization (IMO) said on Monday that the situation in waters near the Strait of Hormuz remains volatile, urging vessels in the area to take maximum caution.

“The situation continues to be volatile. Ships should take maximum caution and not take risks without security guarantees,” the spokesperson said in a statement.

According to the information released on the IMO website, as of April 19, a total of 24 attacks on ships in the affected waters had been confirmed, resulting in the deaths of 10 seafarers.

The IMO, the United Nations specialized agency responsible for maritime safety and security, as well as the prevention of marine and atmospheric pollution by ships, has called for de-escalation, dialogue, and multilateral cooperation regarding the situation in the Strait of Hormuz.

Meanwhile, Iranian Foreign Ministry spokesperson Esmail Baghaei said on Monday that with the U.S. repeatedly violating ceasefire deals and posing threats to Iran’s ports and vessels, a unilateral return to normal shipping remains out of reach.

Also on Monday, the U.S. Central Command claimed in a social media post that the U.S. forces have directed 27 vessels to turn around or return to Iranian ports since its blockade on navigation through the Strait starting April 13.

However, according to a report released from Lloyd’s List on Monday, at least 26 vessels involved in Iranian shipping had managed to break through the U.S. blockade.