Electrical Output
BLUE MOTION ENERGY SYSTEM – FINAL CALCULATIONS
SINGLE DOCK UNIT (Blue Motion Generator)
Floating Concrete Dock weight: 12,000 lbs = 5,443 kg
Stroke height: 6 inches = 0.1524 m
Cycle rate: 10 full up/down cycles per minute = 600/hour
System efficiency: 80%
Energy harvested on both up and down strokes
Step-by-step:
Potential energy (1 stroke):
PE = m × g × h = 5,443 × 9.81 × 0.1524 = 8,143 Joules
Full cycle (up + down):
2 × 8,143 = 16,286 Joules
Energy per hour (600 cycles):
16,286 × 600 = 9,771,600 Joules/hour
Convert to kWh:
9,771,600 ÷ 3,600,000 = 2.714 kWh/hour (mechanical)
Apply 80% efficiency:
2.714 × 0.80 = 2.17 kWh/hour (electrical)
MARINA WITH 100 PILE SLIPS
Monthly electric bill: $11,200
Electricity rate: $0.20 per kWh
Calculations:
Monthly energy usage:
11,200 ÷ 0.20 = 56,000 kWh/month
Hourly energy usage (assuming 720 hours/month):
56,000 ÷ 720 = 77.8 kWh/hour
BLUE MOTION SYSTEM WITH 36 DOCK UNITS
Energy per unit: 2.17 kWh/hour
Total with 36 units:
2.17 × 36 = 78.1 kWh/hour
FINAL SUMMARY
Each Blue Motion unit generates: 2.17 kWh/hour
The marina uses: 77.8 kWh/hour
36 Blue Motion units produce: 78.1 kWh/hour
Result: 36 units can fully power the marina’s hourly energy needs saving marinas thousands monthly in electricity




