The EU executive on Wednesday proposed heavy anti-dumping tariffs of around 47 percent on imports of Chinese solar panels, a European Union source said.
The source said "the consultation process has been launched" to see whether EU nations are in agreement with the proposal. A decision is expected to be announced on June 5.
The EU ProSun industry association has been pressing the EU to take action against Chinese imports which it says are sold below cost and given unfair subsidies by Beijing.
In March, EU ProSun head Milan Nitzschke said "dumping is the fundamental problem in the European solar market."
In February, Brussels also launched a probe into Chinese exports of solar glass.