Design, Supply and Installation of an Off-Grid PV System at Farm Heinrichsfelde

Private Date: 2019

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

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Upgrade and Expansion of an Off-Grid PV System - Farm Ombirisu

Private

2018

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

Refurbishment of the Van-Eck Transformer Oil Storage Facility

Nampower

2015

CTS was successful in winning the tender for the refurbishment of the transformer oil storage plant at the van Eck Power station. The project included the following:

Cleaning and painting of all oil tanks
Automating the entire plant
Installation of oil filtration system

Old as well as new transformer oil is stored in different tanks. Color codes on the tank clearly indicate what type of oil is stored in each tank. Old oil – oil removed from transformers during service – is stored until enough has been collected before it is sold.

Clean/new oil is stored in the other thanks that will be used for refilling transformers during routine services. Humidity tends to form inside the oil when it is stored for longer periods. This humidity as well as other dirt particles are removed my means of the Alfa Laval Oil Filtration plant. The process is fully automated and PLC controlled. The operator merely is required to enter the quantity of oil that is to be filtered.

Radar level sensors are installed in each tank to monitor quantity on hand. Maintenance free breathers on each tank prevent access of water moisture into the tank and the buildup of dangerous gases.

A Coriolis custody transfer meter accurately indicates the quantity of old oil the is transferred to third party tankers for selling purposes.

Refurbishment of Outapi State Hospital Laundry

Ministry Of Health And Social Services

2014

CTS removed old and obsolete laundry equipment and installed new machines.

The installed equipment sonsisted of:

3 x new Primus RS35 washer extractors
3 x Maytag energy saving tumble dryers
2 x Miele through-feed drying ironers
including laundry trolleys, ironing trolleys, hand-irons and ironing tables

Private

2019

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

Containerized off-grid solar solution for the Omusati Region

Ministry of Mines and Energy

2013

CTS was awarded the first ever containerized off-grid solar electrification tender for the Ministry of Mines and Energy beginning of 2013. This project entailed:

Upgrading of all government building wiring as per national standard for 9 sites in the Omusati 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 3,000 to 4,500 Ah of battery capacity depending on site requirements. Five KVA inverter charger and two 70A Blue Solar Charge regulator all from Victron Energy complete the system.

With a total of nine containers, school, hostels and other government buildings were electrified. Each container was subdivided into two rooms for batteries and inverter technology respectively.

With our 36T/m crane truck CTS was able to transport the container to site, navigating through thick sand with ease.

Design, Supply and Installation of an Off-Grid PV System at Farm Heinrichsfelde - Photovoltaic - Our Projects | Central Technical Supplies

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