Please click the tabs below to see our design process from initial ideation to final product.
Design Steps:
- To determine design parameters
- To design a battery charger
- To design and implement two-axis tracking
- Integrate all components into a robust and functional device
70-Bulb LED Strand Consumes 4.8W at 6V
| [1] Max Nightly Energy Usage of LEDs (6 hours) | 28.8 Wh |
| [2] Two Night Storage (12 hours) |
57.6 Wh |
| [3] Battery Capacity Required | 15,567 mAh |
- Target Region: Sub-Saharan Africa
- 2000 kWh/m^2 radiation each year
- Four 13x15 cm^2 Cells, 15% PCE
- 2.5W each (5V 0.5A)
- Linked in parallel: max current and matches battery voltage
| [4] Hourly Solar Radiation | 228.31 Wh/m2 |
| [5] Hourly Energy Harvested | 2.67 Wh |
| [6] Hours of Harvesting Needed (Range) | [8.98,10.79] hrs |