Delta Electronics Powers 4.5MW PV Project in Namibia

Published May 15th 2015 at 12:30pm
Delta Energy Systems 
The PV plant expected to generate a total of 13,500MWh of clean and reliable electricity annually and save more than 8,500 tons of CO2 every year incorporates high efficiency Delta M50A inverters.

Initial Situation

Delta Electronics, Inc. was selected to supply its RPI M50A string inverters to the firm InnoSun Energy Holding for the construction of Namibia’s utility-scale solar PV power plant. The solar power plant totalling 4.5MW is built two hours northwest of the city of Windhoek on 16 hectares of arid land.

The project began after the signing of the first-ever Power Purchase Agreement (PPA) between NamPower, Namibia’s national power utility, and InnoSun Energy Holding. After initial site surveys were completed, construction commenced on August 18, 2014.

Project Realisation

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 thin-film modules for the plant which were mounted on a horizontal tracking system. A total of 33,418 thin-film solar modules were installed in the system as well as 100 Delta string inverters, providing a corresponding PV power of 4.5MW. InnoSun selected the Delta RPI M50A three-phase transformerless models with 50kVA output.

Now that the Omburu Solar Photovoltaic Park construction is completed, InnoSun is working together with local authorities in order to reach commercial operation of the plant. A commissioning ceremony is scheduled on May 13, 2015.


The 4.5MW Omburu PV plant has numerous financial and environmental benefits in Namibia. It has already helped the local economy by providing 60 local construction jobs, but in addition will create income from the solar energy produced over the next 25 years. The plant is expected to generate a total of 13,500MW hours of clean and reliable electricity annually which will cover a large percentage of the energy needs of the region, help maintain stable electricity prices, and avoid power shortages. Furthermore, the PV plant is estimated to help save over 8,500 tons of CO2 per year, the equivalent CO2 produced annually by 1,800 passenger vehicles.

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