Mission Hospital, Kilimanjaro Region, Tanzania, West Africa
Kilimanjaro Christian Medical Centre,
PO Box 3010,
Moshi, Tanzania. www.kcmc.ac.tz
In May 2014, the lives of villagers in remote parish in the Kilimanjaro region of Tanzania was changed forever; one of their local amenities, their hospital and clinic now had access to free clean electricity. Previously the only option for lighting was kerosene lanterns, and for cooking open fires fuelled with wood and crop waste. Previously the only electricity supply the hospital had, was a small unreliable gasoline generator which was reserved for refrigeration, and recharging medical devices. The hospital/clinic is situated in a remote location, with a 2-hour off-road track drive to the nearest main road infrastructure and 2 1/2h to the nearest supplies, including fuel.
A missionary founded the campus, which includes a local parish church, school and the clinic hospital facilities. In early 2014 fundraising by a number of parishes in the North of Ireland raised funds to further develop the amenities in the area, with the main focus being the provision of electricity.
Four separate power systems were designed, manufactured and installed in the main buildings in the campus. Each system was comprised of solar PV panels, lithium-ion batteries, power inverters, electrical panels, wiring and other necessary components. All the systems were fixed installations. A team of builders and electricians from the UK went out to Tanzania to carry out the installations. In the buildings, a single electrical socket and a light was fitted in each room. Each system was installed inside specifically built power rooms, within the buildings for safety and security, with restricted access to the equipment.
Main Hospital / Clinic Building: This was the largest system installed. The requirement here was to provide lighting in each room, as well as electrical points for powering and recharging important medical equipment. Power for refrigeration was also important for protecting vital medicines. A small communal kitchen fitted with an electrical stove was also installed for preparing meals for staff and those in care. Accommodation building. Requirement was provision of lighting and also electrical sockets for recharging devices. • Maternity Building: Requirement was provision of lighting, refrigeration and also electrical sockets for recharging devices. Outside lighting: Around the campus street lighting was installed to illuminate the campus. By using photocell sensors, these automatically enabled when dark and turned off in the morning at sunrise.
Specifications of installed systems
System / Specification Solar Panel Array Installed
Battery Capacity AC Inverter Output (230V 50Hz) Main Hospital Clinic 2kW 48V 220Ah (10kWh) 4kW Accommodation 250W 12V 100Ah (1.25kWh) 1kW Maternity Unit 500W 12V 200Ah (2.5kWh) 3kW Outside Lighting 500W 12V 200Ah (2.5kWh) 1kW
Ryan Burton is Sun Harvesters research & development engineer and a founding partner. Firstly he was responsible for liaising with those who had previously been on the ground in Tanzania to identify system requirements. Following this he was challenged to design the systems to meet the specifications agreed, working with other members of the team, sourcing and costing suitable components, drafting electrical schematics and installation guides for the systems. He was highly engaged hands on in the assembly and testing of the systems, prior to being shipped to Tanzania. Finally liaising with a team of Electricians who travelled to Tanzania to install the systems, providing guidance on the installation procedures.
In summary, Ryan identified this method of system delivery, i.e. shipping components out to these regions to be installed in the field was not in any way practical. With essentially no physical resources on the ground in these regions: For example, if a component is needed for installation, or if something goes missing in transit then a big issue arises. Another issue that can arise, is after installation if a fault occurs or if the system isn’t working correctly there is a lack of technical knowhow to test and identify the problem without equipment and expertise.
This is exactly why Sun Harvester decided to develop the turnkey ‘all in 1’ unit which is the reliable, quick to install and most cost-effective way to provide power in these regions. Being plug & play no electrician is required to install, and being simply and easy to use, very little technical ability is required. They are also very easy to diagnose a fault with the simplistic integrated LCD displays. The solar power pack (SPP) is the ultimate solution.