Midsummer erhält Folgeauftrag für DUO-Dünnschichtsolarzellen-Fertigungssystem Solarenergie 9. Mai 2016 Werbung Swedish solar energy expert Midsummer receives repeat order for a DUO thin film solar cell manufacturing system after exceeding efficiency specifications at acceptance test (WK-intern) - Swedish solar energy expert Midsummer, a leading provider of equipment for cost-effective manufacturing of flexible CIGS thin film solar cells, has received a repeat order for its compact DUO solar cell manufacturing system from a not yet named customer in the Far East after a successful acceptance test in which Midsummer’s DUO system greatly exceeded the guaranteed efficiency specifications. Stockholm, Sweden - Midsummer has recently signed a multi million USD repeat order for its DUO system