Midsummer said it appointed Peter Karaszi as its new PR and IR manager.    The company also added to its Solar Panels business area with five new employees, including Sales Manager John Mathisen.   Karaszi, a former board member and senior consultant with Prime Weber Shandwick, has written six books on PR and also runs his own PR company Caprivi PR.   “I am thrilled to join Midsummer, a company that I regard as the absolute global leader in building-integrated photovoltaics,” he said...