It reported an $8m net loss, or $1.30 a share, a year earlier. Excluding one-time items, SolarCity had a $39.79m net loss, or 46 cents a share.

Fourth quarter revenue was $47.3m versus $23.7m a year earlier. Full-year revenue surged to $163.83m, up from $126.9m.

The company had twice delayed release of figures originally due 24 February, citing discovery of accounting mistakes in the way it determines overhead expenses and related to recent acquisitions.

SolarCity