A year earlier, it had $2.84m net profit, or 6 cents per share. Second quarter gross margin tumbled to 18.2% from 32.7%.

California-based Enphase saw revenue decline to $79.2m in the second quarter versus $102.09m a year earlier. Revenue increased 24% from the first quarter.

The company sold 186MW (AC), or 796,000 microinverters, during the second quarter, down from 195MW a year earlier.