by Web FishApr 25, 2013 @ 04:49pm
The solar panels provide the main (and for now - only) source of power for the vessel. Electric power generated by the panels is used for driving propulsion pods, rudders, as well as all navionics (processor / controllers / comm). The harvested power is split between current consumption and battery bank charging. Battery banks kick in when solar power is below pre-defined threshold.
- Current selection: HighFlex Solar HF35W
- Status: Finalized
- Criteria: Weight, power output, efficiency (watt/sq.ft.), mounting, cost
- Finalists: Solbian SL40Q, HQRP 30W Flex panels, SunFlex 50W panels
- Main decision factors: Weight, availability, cost
(click image for larger view)
Spec highlights:
- 27" x 13" x 1/8" panel size
- < 2 lb panel weight
- 4.7 V no-load output voltage
- 4.5 V output voltage under nominal load
- up to 7 A @ 4.4 V short current
Caveats:
- Low output voltage requires adjustments to the rest of the power package;
- These panels are MAGNIFICENT! At less than 4 ponds per side, we are harvesting up to 60-65 Watt power at high noon. Very, very exciting!