Key Takeaways
What is MGPS (Marine Growth Prevention System)?
Marine Growth Prevention Systems (MGPS) are electrochemical systems designed to prevent biofouling
– the accumulation of marine organisms like barnacles, mussels, and algae – in ship seawater cooling
circuits.
These systems use controlled copper ionization to create an environment where marine organisms
cannot attach or grow. The result? Clean heat exchangers, unobstructed piping, and optimal cooling
performance throughout the vessel.
Without MGPS protection, marine growth can reduce heat exchanger efficiency by up to 40%, leading to
engine overheating, increased fuel consumption, and costly emergency repairs.
The Hidden Cost of Biofouling
Biofouling is one of the most underestimated operational challenges in modern shipping. Here’s why it
matters:
Warning Signs Your Vessel Has Biofouling
- Rising engine coolant temperatures despite normal operating conditions
- Reduced HVAC system performance and cabin comfort complaints
- Increased pressure drop across heat exchangers
- Visible marine growth in sea chest or strainer inspections
- Higher fuel consumption due to engine inefficiency
- Frequent cooling system blockages requiring emergency cleaning
Hidden Corrosion Costs You're Already Paying
Seawater Enters the System
Copper Anodes Release Ions
Ions Distribute Throughout System
Biofouling Prevention
MGPS Selection & Sizing Guide
MGPS Selection Guide (PDF)
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Systems Protected by MGPS
Cooling Systems
Auxiliary Systems
HVAC Systems
Safety Systems
MGPS Best Practices for Maximum Effectiveness
MGPS Cost Savings & ROI
- Eliminated chemical treatment costs
- Reduced heat exchanger cleaning
- Improved fuel efficiency (2-4%)
- Avoided emergency repairs
- Total Annual Savings
With typical MGPS installation costs of $40,000-$80,000, most vessels achieve full ROI within 6-12 months of operation.
Environmental Compliance
Frequently Asked Questions
How quickly does MGPS start working after installation?
MGPS begins providing protection immediately upon activation. Copper ion concentrations reach effective levels within 24-48 hours of system start-up. For vessels with existing biofouling, the copper ions will gradually eliminate growth over 2-4 weeks while preventing new colonization. New builds and freshly cleaned systems receive immediate full protection.
Is MGPS safe for the marine environment?
Yes, MGPS is completely environmentally safe. The copper ion concentration released (typically 2-20 parts per billion) is well below natural seawater levels and poses no threat to marine life. Unlike toxic antifouling paints or aggressive chemical treatments, MGPS uses a natural element already present in seawater. All our systems are approved by IMO, EPA, and major classification societies for environmental compliance.
How long do MGPS anodes last before replacement?
MGPS copper anodes typically last 2-3 years depending on seawater flow rates and salinity. Anode consumption is monitored by the control system, and replacement is a simple procedure that can be performed during routine maintenance without dry-docking. The control panel and other system components have a 20+ year service life.
Can MGPS be retrofitted to existing vessels?
Absolutely. MGPS retrofit installation is straightforward and typically completed in 2-3 days during a port stay or dry-dock. Our engineers design custom solutions based on your existing piping layout, and the system integrates with any seawater cooling circuit. Most retrofits require no major modifications to existing equipment.
What happens if the MGPS system fails?
Our MGPS systems include comprehensive monitoring and alarm capabilities. If anode output drops below effective levels, the control panel alerts the crew immediately. Even in the event of complete system failure, biofouling growth is gradual – you would have weeks to address the issue before significant blockages occur. We also offer 24/7 remote monitoring and support for critical installations.
How does MGPS compare to chemical dosing systems?
MGPS offers significant advantages over chemical dosing: no hazardous chemical storage or handling, no consumable chemical costs ($20K-$40K annually saved), no crew training for chemical handling, consistent protection levels (chemicals degrade), and zero environmental discharge concerns. The only ongoing cost is periodic anode replacement every 2-3 years.