Competitive implementation of multi-kilowatts grid connected PV-systems with OKE4 AC modules

The competitiveness of OKE4 based AC modules with traditional PV systems is compared. The performance of the OKE4 with respect to harmonics, power factor, EMC and monitoring facilities is equal or better than the performance of traditional systems. At system level the energy yield of an OKE4 based system is about 4.7-7.7% higher whilst the cost can be decreased by about 18% in comparison to a traditional system. The comparison applies to a system of about 2.2 kW.