Building a better world, one community at a time

Renewable Energy at Orkeeswa


Computer Lab

Electricity at Orkeeswa

Orkeeswa Secondary School is located far off the electrical grid, but needed electricity to support educational facilities.

Computer and science laboratories were necessary to provide hands-on training and develop skills the students need to be successful in modern world.

Renewable Energy

Since Orkeeswa Secondary School is located near the equator, ample sunlight is available and the Tanzania Team designed and installed a battery-based photovoltaic energy system for the campus.

During the 2009 assessment trip, team members worked with school staff to assess the school's energy demand and met with representatives of Chloride Exide, a regional solar energy system supplier, to estimate equipment costs.

Solar Panels
Orkeeswa Students


The Tanzania Team designed a 1,080-Watt PV system to power a computer lab, a science lab, classrooms and staff offices. The PV system was sized to power the existing school facilities, as well as a future library and laboratories, and supply the school with 2.5 kilowatt-hours per day, even during the rainy season. The battery bank uses ten 12-volt 200 amp-hour flooded lead acid deep cycle batteries wired in series, providing a 24V, 2000 ampere-hour system for the school.


This project received a grant from Boeing, which was used to purchase eight 135-Watt PV panels, ten 200 ampere-hours batteries, a 2024-Watt inverter and a 60 Amp charge controller.

The team worked with Chloride Exide to purchase PV equipment and install it at Orkeeswa in June 2010.

EWB continues to monitor the PV system at Orkeeswa and assists with maintenance and training.

Read about the Solar Energy System at Orkeeswa in US Tech:
Solar Energy Powers Remote African School