Best to let the sunshine in without any harmful tariffs
Row over 'dumping' of solar power products could result in damage to whole industry
Beijing's threat to impose duties on solar power-related products from the European Union would harm its own industry, and appears more likely to be rhetoric in a dispute where both sides will gain from compromise.
The European Commission, the EU's executive, has accused Chinese firms of selling solar panels at below cost in Europe, a practice known as "dumping", and has announced plans to impose duties on the companies' products.
After Chinese reminders of its significance as a trading partner, however, most EU governments oppose the plan, a survey of member states showed on Monday.
Beijing has also wielded a stick, launching last year a study on imposing its own tit-for-tat duties on imports of European polysilicon, the raw ingredient of solar panels.
Officials ratcheted up their rhetoric this week, saying the country "would take necessary steps to defend its national interest". But polysilicon duties would raise costs for module makers in China, just as EU duties would make solar panels more expensive and so harm its downstream solar installation industry.
Compromise may favour both sides.