RAACH SOLAR successfully commissioned a 100kW photovoltaic village power supply system close to Freetown in Sierra Leone.
Freetown, Sierra Leone, 07.10.2016
The local NGO “WAMA GRISO” backed by funding of the German Ministry of Economic Cooperation (BMZ) implemented the water supply project and invested in a 100kW photovoltaic AC mini grid and water distribution system for their school and the nearby Mambo village , about 10km from the capital Freetown in Sierra Leone. “The school with about 400 students profits directly from clean borehole water and sees for the first time electricity and lighting” says happily Mrs. Maria Walz, head of the NGO. “We did not want to compromise on quality of components and chose only the best suppliers and installer” added Mrs Walz.
During nighttime a 150kWh industrial solar battery guarantees a 24hours / day electricity supply. The battery is protected by four 500 Amps hydraulic magnetic battery breakers which link the SMA inverter-chargers to the maintenance free lead-gel battery. The solar power system supplies four school buildings, a sickroom, a sewing room, a computer class and the school’s administration. Refrigerators and deep freezers will be soon added.
The nearby village could soon profit from stable electricity supplies. At present, the electricity is used for the school and the water supply, but already 10 units prepayment electricity meters and AC house connections are waiting for the subscribers.
Additionally a carport was installed to replace a roof which could not support the installation of the solar modules. The carport can be used as car parking, but it has become popular to use it as open terrace as outdoor school class. RAACH SOLAR delivered the carport turn-key and coordinated the civil works for the foundations.