First Solar shares are down ahead of its quarterly report. Analysts expect the solar-power developer and solar-panel maker to report weak first quarter results on Tuesday, and are expecting earnings of $0.56 a share. That's down substantially from $0.69 a share it earned in the same period last year. Revenue in the first quarter of 2013 came in at $830 million. Expectations are for an 11 percent sales increase from 2013. While other solar panel makers have been faster to move to smaller project construction, First Solar has been slower to make the shift. First Solar has only beat Wall Street forecasts once in the past year.