Oceanographic Buoy Power Resilience Enhancement

Client: BlueHorizon Marine Research
Industry: Marine Energy Monitoring
Challenges:

• Saltwater corrosion caused lithium battery short circuits in 200+ deep-sea buoys
• Required 6-month continuous data transmission (0.5W constant load) in total darkness
• 70% power module failure rate due to surge voltages during typhoon seasons

Solutions:
✓ Titanium-encased lithium-ion main power supply (48V 200Ah, IP68 protection)
✓ Ni-MH battery arrays as buffer for wave energy fluctuations
✓ Carbon-zinc emergency system to activate satellite SOS signals

Results:

• Salt spray resistance upgraded to ASTM B117 3000hr certification standard
• Buoys in Philippine Sea achieved 287-day continuous operation (record-breaking)
• Annual maintenance costs reduced by 54%, with data integrity soaring from 68% to 99.2%