Sponsored By GE Team 3 Kwan Hee Lee Sean Munck Paul Pfeiffenberger NO GRID TELECOM BASE STATION ENERGY STORAGE SYSTEM

MISSION STATEMENT Energy efficient alternative for cell service Service to remote areas with no electric grid Energy Systems Communications

GREATER ACCRA REGION, GHANA Southern Ghana, bordering the Atlantic Ocean Population of 2,905,726 people Agricultural Economy Contains Accra, largest metropolitan area in Ghana

DESIGN APPROACH Gantt Chart

DESIGN SELECTION Design Matrix

DESIGN SELECTION Selection Matrix

CELL TOWER ANALYSIS Needs Adequate power supply for cell tower (1.2kW) Minimize generator use Minimize wasted dumped energy Maximize cost efficiency Turbine output0kwh PV output12,323kwh Generator output409kwh Generator fuel43gal Generator hours468hr Dump energy502kwh

BASE STATION SOLUTION 6.5 kW Solar Panel GE Durathon Battery A2 – 24.8 kWh Diesel Generator

SOLAR PANELS Converts sunlight into electrical power Larger panel increases energy efficiency and range Dumps excess energy into charging the battery Size x 21.5 ft

GE DURATHON A2 BATTERY Stored energy – 24.8 kWh Life cycle of over 2500 charges, lasting 15 years Efficiency Discharge >92% Recharge >97%

GE HUT SCHEMATIC (USING PV POWER)

CELL TOWER DESIGN

BENCHMARKING

COST ANALYSIS Cost Solar Panels (kW)6.5 $ 45, Utilities and Antennas $ 150, Total Initial Investment $ 195, Gallons of Diesel43 $ Maintenance Cost $ 10, Maintenance Yearly Cost $ 10, Subscribers Per Year9996 Cost of Phone Service per month $ Cost of Phone Service per year $ Total Money spent for phone service $ 1,199, Percent Return10% Revenue/year $ 119, Salvage Cost $ 75, Total Cost Of Power Supply for 25 years $ 67,246.25

CASH FLOW DIAGRAM

SUMMARY The solar panel, battery, and generator combination was selected to provide the cell hut and tower with the 1.2 kW. Using the Cell Tower Analysis calculator a 6.5kW solar panel and the 24.8kWh battery were found to minimize the generator power and the dumped energy

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