Cost

1. Material

1.1. Active Substance Added

1.2. Fuel

2. Initial

2.1. Capital

2.2. Engineering

2.3. Labor

2.4. Review by classification society

2.5. Installation

2.5.1. Cutting out hull

2.5.2. Time to drydock

3. Retrofit

4. Power Usage

4.1. Treatment

4.1.1. Filteration

4.1.2. UV

4.1.3. EC

4.1.4. Other

4.2. Pump

4.2.1. Increase pressure head requires more power

4.3. Additional weight to ship

5. Operation and Maintanence

5.1. Labor

5.2. Monitoring

5.2.1. Compliance

5.2.2. Sensors

5.3. Upkeep

5.3.1. Parts

5.3.2. Repairs

5.4. Durability

5.4.1. Salt water conditions

6. Time

6.1. Added time at port