System size: 5 MW
Number of inverters: 100 Delta RPI M50As
Number of panels: 33,418 TSMC CIGS thin-film solar modules
Electrical output: 13,500 MWh per annum
Total CO2 saved: 8,500 Tonnes per annum
Planning & realization by: InnoSun Energy Holding
Delta Electronics, Inc., a global leader in power and thermal management solutions, was selected to supply its RPI M50A string inverters to the firm InnoSun Energy Holding for the construction of Namibia’s first and largest utility-scale solar PV power plant.
The solar power plant totalling 5 MW is built two hours northwest of the city of Windhoek on 16 hectares of arid land.
The PV plant built near the town of Omaruru in the Erongo Region of Namibia took six months to construct after the contract was signed. Sixty local Namibians were employed and trained for the installation of the PV plant structure.
InnoSun chose TSMC CIGS (copper, indium, gallium, selenium) thin-film modules for the plant which were mounted on a horizontal tracking system. The 1-axis tracking system adjusts the solar module position in relationship to the position of the sun over the course of the day thereby maximizing energy output, and increasing output by up to 25% when compared to a fixed-tilt system.
InnoSun selected the Delta RPI M50A three-phase transformerless models with 50 kVA output because of their reliability and low maintenance. Due to their rugged design, the RPI series inverters are an ideal choice for the rugged environment of Namibia.
With its inverters, Delta has made an important contribution to the success of the first-ever utility-scale PV project in Namibia and look forward to being part of the growing PV market in Africa.