Last year, Reuters reported that rogue communication devices not listed in product documents had been found in some Chinese solar power inverters ​by US experts. The executive order blocks companies from buying, importing or installing certain foreign-made parts used in what the government calls the bulk-power system Key points and original sources are listed below.

• Last year, Reuters reported that rogue communication devices not listed in product documents had been found in some Chinese solar power inverters ​by US experts.S1

• The executive order blocks companies from buying, importing or installing certain foreign-made parts used in what the government calls the bulk-power systemS2