Top solar companies, banks and insurers have stopped doing business with at least a half dozen recently built U.S. panel factories because of ?uncertainty over whether their ties to China could disqualify them from clean-energy subsidies, according to industry executives and documents.

The shift, driven by new policies of U.S. President Donald Trump's administration, jeopardizes more than a third of U.S. solar capacity in factories initially built by Chinese firms. Details of how the policy uncertainty is driving installers and insurers away from U.S. solar factories with China ties have not been previously reported.

The emerging effects dovetail with Trump¡¯s broader efforts to block Chinese companies from the U.S. market and to slash government support for green energy. However, the policy could backfire by imperiling growth in U.S. manufacturing jobs and power generation at a time of rising utility bills and soaring electricity demand from data centers serving the artificial intelligence industry, industry experts say.