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An existing off-grid solar PV system was expanded to a total of 4,44kW on the farm Ombirisu north of Okahandja and the battery was upgraded to a Lithium-ion technology.

Final System Specifications:

• 6 x 295W Canadian Solar have been added to an existing PV array to deliver a final capacity of 4,44kW
• Replacing old charge regulators with 3 x Victron MPPT 150/70
• Replace old battery with 1 x BlueNova Lithium-ion battery 24V-24kWh
• Pole mounted solar array
• Online connection with remote access

A 71kW grid tied (Nampower ) PV system was installed at the Klein-Aus Vista Lodge just outside Aus. Remote Monitoring and Energy meter is included to obtain precise information about own consumption as well as exported power. This aids in future electrical reticulation upgrades and designs.

System Specifications are:

• 240 x 295W Canadian Solar PV modules
•  3 x Fronius Symo 20.0 – 3 Grid Inverter
• Shed roof mounting with structure for IBR roof sheeting
• AC & DC surge and Lightning protection
• Configured for remote monitoring

An off gird PV system with generator back up was installed at the Gcwatjinga clinic south east of Rundu. The system comprises of the following components:

• 6.24 kW PV array
• 2x Victron BueSolar 150V/70A MPPT regulator
• 600Ah Battery capacity
• Inverter/Charger, Victron Multi, 48V/8000VA
• System Monitoring (BMV700, Color Control GX)

The clinic was connected to the grid, which at time of system design and installation the grid connection plans were unknown to the engineer. As the clinic has PV installed, the existing system has been configured such as to allow for grid connection once the batteries reach a predefined SOC. This guarantees a continuous supply of power to the clinic and nurse houses.

In addition to the grid, a backup generator is incorporated in case PV as well as grid failure occur.

After successful completion of the Omusati off grid electrification project, CTS was successful in winning the bid for the second phase of containerized PV solutions for the Kunene region. With the experience gained from phase 1, the containers were optimized in many ways. The final design consisted custom build 20ft container by Namspace in Swakopmund.

Sites that were electrified in the Kunene region are:

• Otjitjekua School
• Otjiu School
• Otjiu Hostel
• Epupa School

The project included the following:

• Upgrading of all government building wiring as per national standard for 4 sites in the Kunene region:
• Manufacture, supply and install container power units for these sites.

The power containers consisted of ca 2.8kW of PV modules installed on the roof as well as 4,500 Ah of battery capacity. Five kVA inverter charger and two 70A BlueSolar Charge regulator all from Victron Energy complete the system. Remote monitoring of all sites is achieved by using the Victron Color Control GX unit.

A 7,3 kWp off-grid PV system was installed at the farm Heinrichsfelde in the Aus area with a Lithium-ion battery. The system is able to power an entire farmhouse. Remote monitorng and supervision is included.

System Specifications are:

• 24 x 305W Renesola PV modules
• 2x Victron MPPT 150/85
• 1x Victron Quattro 48/10000
• 1x BlueNova Lithium-ion battery 48V-24kWh
• Roof mounted with structure for IBR roof sheeting
• AC surge and lightning protection

CTS was awarded the tender in February 2010 for Okankolo Health Centre’s laundry.

The scope of the work included the supply, manufacture and assembly, delivery to site, installation, testing, commissioning and maintenance of laundry equipment.

Health Centers have to ensure that their laundry is hygienically clean. Our washing machines have a special sluicing program, which is ideal for blood stained linen and operation gowns. After the sluicing program, washing resumes as normal at higher temperatures, ensuring that all bacteria are destroyed, leaving laundry clean and safe to be used again. Our washers can be equipped with a second drain valve to recycle drain water, making them environmentally friendly.

Using roller ironers further sterilizes the linen; ensuring optimum care is taken for patients as well as Health Center staff.