Solar Power for Pan Door Guest House

Project Partner

Diocese of Rumbek, South Sudan


Project Place

Pan Door – Rumbek, South Sudan


Project extent
  • 26 kWp PV-System with 54 kWh Salt water aqueous ion exchange battery storage
  • 3 phase inverter 3×10 kVA island system
  • Potable water – submersible pump
  • LED street lighting
  • House connection boxes & sub distribution with power monitoring system
  • LED lighting
  • Fans


Implementation period

Delivery from Austria in October 2019

Installation and Commissioning in December 2019


CHH, BBM and the question of ecology

The MIVA headquarters, the ChristophorusHouse built according to all the rules of energy-saving building is 15 years old. The BBM the “procurement company of MIVA” is twice as old, so it has now been around for 30 years. But not only mathematics connects the two. One can rather say that the BBM is the father of the ChristophorusHouse.



Old friends and companions of MIVA have long known how to understand this. As MIVA managing director Franz X. Kumpfmüller (ret.) and the then MIVA board of directors founded BBM as a 100 per cent subsidiary of MIVA, it soon became clear that the BBM would not only be responsible for the delivery and procurement of vehicles and other relief goods. Rather, it should also offer technical help in the countries of operation, in the most ecological way possible.

Since the BBM also offered its services to other aid organisations, very successful collaborations with NGOs and experts, such as the Vienna University of Natural resources and Applied Life Sciences, came about quickly. So, complex projects could be started. In this way, the BBM – above all the tireless technician Norbert Demmelbauer, who spends weeks and months in the countries of operation – was not only able to apply knowledge of ecology, but also to fain a lot of experience in the concrete implementation. Photovoltaic systems, hot water from solar energy, wastewater treatment plants or the use of process water soon became part of the repertoire of BBM.



When the final decision to build the ChristophorusHouse was made and Franz X. Kumpfmüller planned the project with architects and trades, it was clear from the start that the house in Stadl-Paura should not lag behind the ecological standard of the BBM projects. On the contrary: A building was built according to the well-known standards of ecological building every year. A showcase project that will not only serve its purpose, but also set a good example.

That’s why the passive house, which generates most of the energy it, consumes. That’s why the geothermal energy, the timber construction, the grey water system, the plant-based sewage treatment plant and the many small and large individual measures that actually make the house a “highly active passive house”. The ambitious projects, for which, incidentally not a single euro was donated, received numerous prizes and was recognized as the “Best LIFE Project” by the European Union.



The ChristophorusHouse is still regularly visited by many interested people. Even 15 years after its completion, it is still ground-breaking in many areas. It is particularly gratifying that the house is not just an ecological showcase project. However, has proven itself every day as a pleasant, well-tempered and functional workplace.
Since the founding of the BBM and the establishment of the ChristophorusHouse, the urgency of consistent protection of creation has become even greater. MIVA has demonstrated vision with both.

Driver training with MIVA cars for development workers

HORIZONT3000 – one of the oldest and largest NGOs in EZA – is currently training 11 specialists. These will be deployed to their countries of operation by the end of November. So that these committed women and men are mobile in the country of operation, driving with a MIVA off-road vehicle is practiced in theory and practice. MIVA and BBM run this three-day course twice a year.

The practical training is carried out by the off-road state champion Christian Karlberger, who saves the participants nothing from the first second of driving: Inclined drives, steepest descents, stopping in the middle of the ballast cone and difficult backward runs prepare the specialists for their assignment. On the previous day, Markus Müller from the Müller car dealership in Bad Wimsbach started the practical day with detailed theoretical knowledge and then showed every detail off-road that can be found under the engine hood. Tips and tricks for changing the huge Toyota tires must also be practiced by everyone in reality.

In total, MIVA and BBM have been able to prepare over 100 people for their time in the country of deployment.


Medical Waste Incinerator

Project Summary

Because of major problems of existing incinerators at St. Kizito Hospital Matany a new incinerator was in need to ensure a proper burning process of dangerous medical waste. An incinerator must reach a certain temperature to sterilize or destroy sharps and effectively burn wet medical waste. The minimum amount of smoke and toxic gases should be produced while keeping the incinerator as simple as possible. The installed incinerator type “HWI-5” was developed by TTM for this specific purpose – for disaster relief and rural hospitals.

To ensure a proper installation and operation a training was organized at the hospital. Partner institutions were invited to send their technicians. This should also allow further installations of incinerators in Uganda with the help of local technicians and improve the maintenance of the incinerators from the partner institutions as well.



The training took place as planned between 27.05. and 30.05.2019. As by the nature of the training and the recommendation of the supplier, a limited number of partner institutions were invited. Seven external technicians and five local technicians attended the training.

The training was carried out as planned with the following schedule:

  •  Arrival and Registration
  •  Self-Study of Assembly Instruction
  •  Assembly of Main Frame
  •  Final Assembly and Positioning
  •  Tentative installation of Chimney
  •  Detailed description of all parts of the incineratorStart-Up of Diesel Burner
  •  Self-Study of Operations Manual
  •  Start-Up of Incinerator mainly through external Participants
  •  Getting used to proper Operation


  •  Explanation of Operation to Matany Incinerator Attendants by local technicians
  •  Start Up of Incinerator mainly through local Participants and Matany technicians
  •  Discussion on possibilities regarding Waste Management
  •  Getting used to proper Operation


Throughout the whole training, the time was used to share experiences between the participants. Not only regarding Waste Management and Incinerator Operation but also about general Maintenance and other Systems e.g. Treatment Wetlands.

For each institution a hardcopy and a softcopy of relevant manuals was handed over.
Each participant received a Participation Certificate.


Reuse of Solar Panels

Project Summary

During an Assessment of the technical installations in Pope John’s Hospital Aber (PJHA) several findings were made.
The relevant topics for this project were:

  • Several Solar Panels in Store which could be used
  • Poor Electric Wiring in the whole Hospital
  • Dangerous and confusing Main Distributor
  • Technicians are in need of a Training about small Solar System and Electrical Basics

After discussion with the different parties, the decision was made to support the hospital in organizing a suitable training and to install the solar panels to reduce the running costs of the hospital. This is the most efficient way to use Solar Panels, without high investment costs, as no Battery is required. Of course, because of this the system has no Back Up functions in case of blackout.

The hospital agreed to independently finance the basic material to renovate the main distributor for better safety and an automatic change over switch to reduce blackout time in the hospital.


Main Result

Energy Meter Reading of Produced Power: 1025.2 kWh by 31.07.2019

After system operation of one and a half month, around 1000 kWh of power were produced. This means around 600kWh are produced per month which was expected with an installation of 6500kWp Solar Generator. Assuming energy costs of around 700 UGX per kWh this comes to a saving of 420.000 UGX or roughly 100€ per month.
(Power tariffs)


Technical Details

Grid Parallel Photovoltaic Systems:

Instead of installing a battery which will be charged by Solar Panels, it is also possible to Supply Loads directly from the Solar Panels. The main requirement is a Grid Inverter that transforms the DC Power from the Panels into AC Power which can be then consumed by standard loads in households, or in this case the hospital.

The purpose of an installation like this is solely to reduce the power consumption from the Grid and therefore reduce the costs on the electricity bill.

Installed Equipment:

  • Inverter Sirio EVO 12500 Watts
  • 300m Cables
  • Schletter Mounting Structure for Panels
  • Surge Protection and Earthing
  • 21 Solar Panels provided and tested by the hospital:
    • Module power (Pmax)=310W
    • Max power voltage (Vmpp)=36.6V
    • Max power current (Impp)=8.47A
    • Open circuit voltage (Voc)=45V

To test the Panels the open circuit voltage was measured and was found to be between 44 and 45 Volts.


Installation & Support

The installation took place between 01.06.2019 and 12.06.2019 and was done by the hospital and support / training through a local Electrician. During this time also the Main Distributor was renovated and a Monitoring System was installed.



The training was carried out from the 13th to the 15th of August 2019. As by the nature of the training a limited number of partner institutions were invited. Thirteen external technicians and two local technicians attended the training.

The topics were:

  • Recap of past Trainings (Pumps, Wetlands, PV Systems)
  • Electrical Basics
  • Power Supply in a Hospital
  • Small Back Up Systems
  • Monitoring and Maintenance

The whole training was designed to encourage the participants to discuss the topics in small groups. The participants were able to share knowledge and problems to the group and therefore solutions and advises were developed together.



Energy management


Awareness raising through energy monitoring

Two volunteers (students) have under the supervision of BBM installed digital electricity meters in eight catholic hospitals in Uganda. The evaluation helps hospitals to save energy and shows the profitability of existing solar power systems.

In the installed electricity meters the technicians of BBM integrated a data storage which plots the consumption of power. Financier is DKA (Dreikönigsaktion). The target of the project was to offer the technicians of the hospital a possibility to overview the electric systems and to recognize and correct diverse problems early. In a few hospitals this power monitoring system was used earlier. In this way a comparison with the data was possible in the latest years.
In addition, the staff were interviewed on site. The target was to find out the energy consumption for the near future. From information about the actual energy consumption and the planned future development, the BBM calculated a load profile. The basis to this is a strategic development plan for the next five years. The aim of the project was, on the one hand, to raise awareness of the actual electricity consumption and to find potential savings. On the other hand, to determine the investment costs for a partial or complete power supply using photovoltaics (PV). The results of this study were passed on by the BBM to the hospitals and their umbrella organization in order to be able to react to the savings potential found and to convince potential donors of the sensibility of new investments in this area.

  • Project partner:
    8 Hospitals in Uganda
    e.g.: St. Joseph Hospital Kitgum
  • Donor:
    DKA (Dreikönigsaktion)
  • Implementation location:
    Kitgum, Uganda
  • Project time frame:
    02/2018 – 12/2018

St. Joseph’s Hospital Kitgum, Uganda

St. Joseph’s Hospital in Kitgum

The load profile of St. Joseph’s Hospital in Kitgum shows that around 25% of the total electricity requirement (orange area in the diagram) is already covered by the PV system installed in 2017. The remaining approx. 75% (gray area in the diagram) – depending on availability – is provided by the power grid or a diesel generator. Another result of the study was that there is a relatively large potential for savings by switching off devices that are not required, as well as by replacing traditional lamps with economical LED lights. This is especially true in the evening and night, when there is no solar energy available to reduce the electricity required from the grid or a diesel generator. It was also determined what additional solar power would be required to cover the hospital’s electricity needs as fully as possible in the future with solar power. The installation of another PV system with 25 kWp is expected to be carried out as early as 2019 to 2020. According to this calculation, the solar power will then be able to cover around 40% of future electricity needs.

Sustainable Development Goals

BBM and the sunstainable development


When the United Nations – that is, the organization that brings the countries of the world to the negotiating table – formulates goals that apply to the whole world, they are generally well thought out and thoroughly discussed. On the issues that affect everyone because we all inhabit the same planet, formulated goals provide important guidance for the governments, which implement them, but also for the non-governmental organizations that use them as a guideline for their actions.


The “Sustainable Development Goals” (SDG) came into force on January 1st, 2016. They are scheduled for 15 years; they cover no less than 17 areas. Some of the headings already sound very ambitious, for example when “no poverty” and “zero hunger” are promised for the end of this period. But everything suggests setting yourself big goals in the face of great challenges.


MIVA’s procurement company (BBM) works directly to implement the sustainable development goals. We did not wait for the UN target to be formulated, but have been realizing technical projects in rural areas of Africa since 1995. It is about supplying people with water and energy and better equipping hospitals and medical facilities. From the very beginning, the BBM has paid attention to sustainability and ensured that nature and the climate are treated with care. Of the 17 development goals of the UN, four are of central importance for the BBM:


3: Ensure healthy lives and promote well-being for all at all ages


6: Ensure availability and sustainable management of water and sanitation for all


7: Ensure access to affordable, reliable, sustainable and modern energy for all


13: Take urgent action to combat climate change and its impacts by regulation emissions and promoting developments in renewable energy


Hospital St. Kizito, since 1998

One of the BBM’s first projects in Uganda was the laundry at St. Kizito Hospital in Matany, north-eastern Uganda. An Ebola epidemic in 2000 and 2001 showed that the hospital’s hygiene standards urgently needed to be improved. The main focus was on the laundry. In Matany – as is still the case today in some hospitals in the country – the hospital washes were done by hand and sometimes with cold water. That doesn’t kill bacteria; the risk of transmission of pathogens is great. The BBM installed a solar system that supplied the laundry with hot water. A partition-washing machine that is loaded in one room and unloaded in the other now ensured the necessary hygiene. Ebola has not been an issue for some time. However, the washing machine is getting old. After many repairs, it is still in operation. Due to the old age of the machine, the operation costs increase, so that a new purchase is considered.


St. Kizito has remained an important BBM project partner over the years. The water supply and wastewater treatment have also been modernized. Water tanks, pipe systems, pumps, new toilets and a central plant-based sewage treatment plant enable the recycling of wastewater and have significantly reduced the pollution of the groundwater.



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