Beijing has been striving to rein in severe overcapacity in the solar industry. But the sector is still plagued by illegal facilities, an insider says.

Beijing has been striving to rein in severe overcapacity in the solar industry. But the sector is still plagued by illegal facilities, an insider says.

Energy-security fears are slowing Beijing’s solar capacity cuts, deepening a ‘fight to the death’ among manufacturers trapped in a price war.