ISTANBUL (Turkey), December 1 (SeeNews) – Turkish solar energy firm Integreen Yenilenebilir Enerji Sistemleri, a unit of local venture capital firm Alesta GSYO, has installed two solar power plants with combined capacity of 1.75 megawatts (MW) for local customers, Escort Teknoloji Yatirim [BIST:ESCOM] said.