PV-Installation at De La Salle Boy’s School Rumbek, South Sudan

The school is situated in Rumbek, Lakes State, in South Sudan. It is the world’s youngest nation that became independent in 2011 after a war with Northern Sudan.

Due to the ongoing civil war, started in 2013, many of the already insufficient educational infrastructures have been destroyed. There is a lack of schools, qualified teachers and materials.

In March 2018 the La Salle Brothers opened outside of Rumbek a Secondary School.

 

PV System

BBM delivered for the school a PV-system consisting of 110 solar panels of 300Wp, carefully mounted on special roof assembly with special Schletter roof mounting accessories supplied in the consignment. One of the classroom blocks nearest to the power house was selected as it was strong enough to carry the weight of the panels.

From left to right in the above picture, there is:

  • Ac distributor box
  • three SMA Sunny tripower STP12000TL-20 solar grid inverters 12kw
  • Hisboxes for the surge protection boxes

The equipment is mounted in one of the offices, on a steel plate which is secured on the metal structures of the prefab building.

 

Battery System

This consists of 9 AXI storage Lithium battery sets of 10Kw connected in parallel in a Dc combiner box mounted on the wall as close as possible to the SMA inverters.

 

Power Room

The school system consists of three Sunny Island, 8Kw inverter/charger that provide sufficient power for two water pumps and to the school buildings i.e Class blocks, Dormitories and teachers quarters. The Monitoring is done by Powerdog and using a tablet mounted next to the inverter/chargers.

 

Water System

This consists of two Grundfos submersible SQE 7-40 water pumps installed in two different boreholes to the East and West of the power house. The pumps have their controllers CU300 installed inside the respective pump chambers. The pumps supply water to locally welded tanks that have their main supply to the school linked so that they are drained equally. The power supply is controlled by photocell which stops the pumps from draining the battery during night hours.

New photovoltaic system in St. Josephs Hospital

In spring 2017 BBM received the order to support the St. Josephs Hospital in Kitgum (UGANDA) with the installation of a photovoltaic system.

The unsteady electrical power supply and breakdowns handicapped the hospital work enormously.

On November 28th 2017 the PV system was successfully tested and handed over to the hospital. Already on the following day, a Sunday, from 09:00 a.m. on, the hospital was fed entirely by the PV system. On weekdays the feed-in of the PV will be between 25 and 30 %. A first and important step for a smooth, efficient and economic electrical power supply fort the hospital.

This project was financed by a co-financing of EWK Zell (http://www.ewk-zell.at/)  and the Epiphany mission of the catholic youth (http://www.dka.at/).

 

Technical data:

PV installed: 25.000 Wp

2 inverter modules Aros each 12,5 kW

UPS for solar operation Aros 120 kW bidirectional

Batteries 33x 12V 150Ah C10 of Hoppecke

 

Procurement and logistics by BBM Beschaffungsbetrieb der MIVA

Installation: BBM  and MECS / Gulu

Time of installation: 16 days including earthwork and tests

Power Supply of the convent of the Loretto sisters in Rumbek

The project objectives at the Sisters of Loreto in Rumbek required both to provide the Sisters with an independent power supply and also to reduce the running time of the diesel generator.

The installation was completed in August 2011 by BBM experts. The photovoltaic system with 45 modules was mounted on two primed 20-foot maritime containers. The previously constructed battery room was converted into the power control centre, housing the new batteries (12 units, 2V cells) along with other equipment (solar charge controllers, power inverters, power distribution).

For the power supply of the office a smaller system (4 solar panels, 1 power inverter, 1 solar charge controller, 2 solar batteries of 12V) was additionally installed. This ensures that office routines can be maintained independent of the main system.

Country: South Sudan
Task: Planning and construction of the photovoltaic system, delivery of all required components, installation by Austrian experts with local assistance
Power generation:
45 modules with 80 watts each, 3,600 watts capacity of the solar generator
Battery system: 12 2V maintenance-free gel batteries with a capacity of 2,000 ampere-hours (Ah
Additional components: 2 power inverters 3,000 W/24V, 2 MPPT 60A solar charge controllers
Project partner: Rumbek Dioccese
Duration: November 2010 to August 2011

 

Ecological energy supply for Jesuits

Feedback from the project partner:

“All the people are fascinated by the system since they have never seen such a big system and it works well. Everybody is very happy and I think they are thinking of other places since power in Tanzania is very erratic. Someone told me that it was a blessing because after the installation power rationing started.”

 

Project overview:

Country: Tanzania
Task:

 

Ecological energy supply for

  • Jesuit Noviciate Arusha (16kW)
  • Radio Kwizera Ngara (15,5kW)
Responsibilities:
  • Detail Planning
  • Procurement and Delivery of equipment (PV, batteries, inverter, cables) from Europe
  • Installation of electrical / PV equipment, together with local experts.
  • Commissioning
  • Training
Project Partner:

 

Jesuits
Duration: October 2014 – October 2015

 

For more information, please contact the project manager Michael Dornetshuber: m.dornetshuber@miva.at

 



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