The components were found in power inverters – devices that connect solar panels and wind turbines to electricity grids and allow remote access for updates. However, this equipment from at least two Chinese companies was not listed in their technical details.
Experts quoted by Reuters said the unlisted equipment provides a communication channel unknown to the operator, potentially allowing remote circumvention of security firewalls.
Allowing an external entity to remotely control inverters could disrupt power grids, damage energy infrastructure, and cause blackouts, threatening national energy security. In conflict, the ability to cut or reduce the power supply becomes a powerful weapon.
The Japanese government has started examining imported solar panels to determine whether similar undeclared equipment has been added to units sold in the country.
