An optimal energy quality is of the utmost importance on yachts

The right quality of voltage and current (Power Quality) is essential to ensure the reliability of electrical installations on yachts. As a result of the increased use of converters - such as LED lighting and inverters - excessive harmonics may emerge in voltage and current. This can create problems for the safety, reliability and capacity of the electrical installation. A poor Power Quality can reveal itself in the flickering of lights, heat generation, overloading of generators and switchgear and the accelerated aging of connected equipment.

To avoid problems, certification companies impose requirements with regards to the maximum harmonic pollution on yachts. A frequent set requirement is a maximum harmonic distortion in the voltage (THDU) of 5%.

Consequences of a poor Power Quality
Capacity losses
Malfunctioning of sensitive equipment
Shortened life of electrical equipment
Disturbance in the accuracy of measuring and security systems
Increased temperature in cables, transformers and distributors
Energy losses and an increased risk of fire

Specialist on yachts

For over five years, our Active Harmonic Filters are installed on yachts to optimize the electric energy quality. Our clients see the benefits this provides in terms of safety, reliability and capacity. Our engineers are aware of all electrical aspects on yachts. Not only does HyTEPS deliver a product, we also provide services such as Power Quality surveys and measurements, commissioning and service visits.

HyTEPS works closely with Eindhoven University of Technology. Some of our products are installed in the Power Quality lab of the Faculty of Electrical Engineering for demonstration and testing purposes. At the Eindhoven University of Technology we regularly provide training for our (potential) customers and we work with some employees of the TU / e in the field of testing (new) products.

HyTEPS Engineer working on Power Quality of Yachts / Super Yachts

Optimizing the electrical energy quality on yachts

By means of Active Harmonic Filtering

An advanced method to reduce harmonics and keep them within the prescribed norm of 5% THDU is the application of an Active Harmonic Filter. The installation of an Active Harmonic Filter optimizes the Power Quality. The Active Harmonic Filter (AHF) is installed parallel to the installation, which allows harmonic distortions created by multiple devices to be reduced with just one Active Harmonic Filter.

Principle of Operation_ AHF

Optimizing the Power Quality on yachts

Prevent malfunctioning - Reduce service costs - Improve efficiency - Increase reliability - Ensure safety

Case with an Active Harmonic Filter

A HyTEPS Active Harmonic Filter (AHF) is installed on a yacht. During the sea trial, the filter is turned off for a short period of time, resulting the total harmonic distortion of the voltage (THDU) immediately to rise immediately to unacceptable values (see chart).

Functioning of een Active Harmonic Filter Power Quality


This year we are organizing or participating in various events.
Do you want to get know HyTEPS? Come and meet us at one of the following events:

- METS 2017 / SuperYacht Pavillion
- HyTEPS Power Tour (Dutch)
- HyTEPS Training courses (Dutch)

HyTEPS Events over Power Quality en Energie Efficiƫntie

Are you interested in our solutions to achieve an optimum electrical energy quality?

Please contact us to discuss the possibilities.

For more information on the different aspects of Power Quality, we invite you to read the pages on Power Quality Measuring and Energy Scans, clean power and reactive power. You can also have a look at our references for example our case concerning Harmonic Filtering on a 'livestock vessel'.