Image: iSun Solar contractor iSun’s pre-tax earnings fell further at the start of 2021 compared to the same period last year, while its gross margin took a hit due to project delays brought on by COVID-19. EBITDA for the first three months of the year stood at -US$1.4 million, down from -US$340,000 during the first quarter of 2020. Gross margin, likewise was 1.6% in the three months ended March 31, 2021 compared to 7.9% year-on-year. This, the company said, was driven by a “significant material issue” on one of the company’s sites, which resulted in additional modifications and higher construction costs. Additionally, the restrictions on working and movement caused some job sites to shut down.