Terra Solar develops solar farms using technology designed to make the most of Ireland’s overcast conditions; they produce less power than panels designed for brighter environments but generate better efficiency from the power cells. The photograph shows a solar farm in Cornwall, southwestEngland. Photograph: Matt Cardy/Getty Images

ESB Group has invested €2.5 million to take a significant minority stake in Terra Solar, a Dublin-based solar energy start-up founded by a pair of fo(...)