• High-Speed-Super-Tron-G2-small
  • Electromagnetic Power Converters
  • Aero Tron Concept
  • Dual-Rotor-Marine-Pod-Concept Correct Pitch
  • 10MW-Wind-Turbine-2-Coil
  • Alpha Tron
  • Beta Tron
  • Gamma Tron
  • Drive Accessory
  • Key Technology


Mr. Ante (Tony) Guina, a Croatian born scientist and the Managing Director of Guina Research & Development, started research into magnetic and electromagnetic fields in the mid 1990's. The company established an office on the Gold Coast, Australia, for the purpose of furthering this research. In 2004 the company broadened its research focus to include the rapidly advancing fields of Superconductivity and Superconductive Materials. Our first coils and electromagnets were made by HTS-110 in New Zealand in 2005. Over the years Mr Guina has invented several different engine concepts. Throughout the history of the company the idea of a perfect rotary Electromagnetic Turbine motor or generator has been constantly pursued.

In early 2010, Mr. Guina invented his first Electromagnetic Turbine motor (the Alpha-Tron). Since then Mr. Guina has invented coils and solenoids with a series of null regions in the electromagnetic field for use in the Super-Tron series of Electromagnetic Turbine motors and generators. He has also invented all of the other Electromagnetic Turbine motors and generators presented on this site. These Electromagnetic Turbine motors and generators represent the most advanced and powerful Electromagnetic Turbines, in terms of their power to weight ratio, in the world.

Guina Research & Development has a dedicated team of scientists that have contributed hard work and ideas to further perfect, refine and tune the Coils, Solenoids and Electromagnetic Turbine motor and generator designs. All of our scientists are long term employees of the company and are dedicated to pioneering research and development.

In 2012, John Kells (Development Manager) invented our Electromagnetic Power Converters/Gearboxes which were further developed and refined by Dr. Rene Fuger (Development Manager - Superconductivity) & David Sercombe (Project Development Manager) along with the rest of the team. Also in 2012 our team of scientists have developed direct drive generators required for wind turbines and the Electromagnetic Power Convertors needed for successful implementation of our entire range of Tron series Electromagnetic Turbine motors and generators. Towards the end of 2012 Mr. Guina has invented a second generation of Tron Electromagnetic Turbine motors and generators (G2) which have beed further developed by his team. Power to weight ratios have been improved and inter-coil forces reduced to simplify construction.

Research and development of liquid metal brush technology has been led by Dr. Arkadiy Matsekh (Scientific Research Manager) and Dr. Cesimiro Fabian FIEAust CPEng (Electromaterials Research Manager) with support from the team.

Our wind turbine generator technology has also been further optimised to reduce weight and minimise the lengths of superconducting wire used. Our technology is squarely aimed at the high power, direct drive wind turbine industry. This technology would reduce tower weight and associated infrastructure significantly therefore reducing overall wind turbine cost significantly.

History of Homopolar Motor Development:

development timeline

How is Guina R&D's (Homopolar) Technology significantly different from past homopolar devices?

The above image shows the timeline of the development of motors and generators based on the homopolar principle of operation - culminating in Guina R&D's Tron series of Electromagnetic Turbine motors and generators.

The development of regions of Null Magnetic Field.

The null magnetic field regions created by Guina R&D's novel coil geometry allowed the development of devices that operated at field strengths of 13T and beyond. In order for the brushes to operate reliably they need to be situated in regions of low magnetic field (below 0.2T). Guina R&D's novel coil designs produce these low field regions in close proximity to the high magnetic field strengths required to create generators and motors with high power to weight.  In the past homopolar devices were limited to far lower working fields. Guina R&D's proprietary null field technology plays a significant part in increasing the power density of our motors and generators.

The development of Liquid Metal Brushes.

Liquid Metal Brushes allow far larger currents to be transferred across a stationary/rotating boundary with much lower electrical and mechanical losses than solid or metal fibre electrical brushes. This directly increases the power density achievable in a homopolar motor or generator. Liquid metal brushes are noiseless and operate with virtually no wear.

The development of the Electromagnetic Power Converters.

The converters allow the Low Voltage and High Current output from a homopolar generator to be stepped up to a High Voltage and Low Current output that is suited to the load or storage requirements. Alternatively, our converters allow a low speed/high torque motor to be driven by a High Voltage and Low Current DC power source. Guina R&D's Electromagnetic Power Converters enable our technology to be used as low RPM direct drive wind turbine generators and high torque marine propulsion motors. The lack of a physical mechanical connection between the input and output stages of our Electromagnetic Power Converter technology provides mechanical shock isolation between the input and output stages and reduces the need for lubrication.

The development of an environmentally sealed system.

The Tron Electromagnetic Turbine generators and motors can be completely sealed with the final drive occurring via magnetic coupling. This allows a controlled environment for the operation of the generator or motor and additional shock isolation between the generator or motor and the torque input or output shaft.

The development of the Stray Field Reduction Technology.

Stray magnetic field is often a concern from a regulatory standpoint. As an example, our 40MW G1 High Speed Super-Tron would require around 100 tons of steel to ameliorate the stray magnetic field produced by the drive coils. Our Stray Field Reduction Technology uses active field shielding coils to significantly reduce the stray field at a fraction of the weight of steel or ferrite based shielding. Our technology does not require any steel shielding.

The G2 High Speed Super-Tron.

The G2 High Speed Super-Tron Electromagnetic Turbine Motors and Generators contain two major advances beyond the G1 Turbines:

  • An updated coil design that reduced the lengths of superconducting wire used and the inter-coil forces developed for a given power level.
  • Coil geometry that doubles the length of the generator or motor current path – effectively using the driving magnetic field generated by the superconducting coils more than once. Each additional current path directly adds to the power density of the device. This phenomenon is best illustrated in the following images.

We believe that our technology (motors & generators) from 1 MW can be constructed with a cost advantage over existing technology.

Heron Energy Pte. Limited, a Singapore based company of which Mr. Guina is a Director, owns all intellectual property rights to the technology presented on this website.

We are constantly expanding the knowledge and the boundaries of electromagnetic field research with the ultimate aim being to benefit the human race as a whole.
We are very thankful for the help and support that we have received and are receiving from a number of individuals, companies, university institutions and other key partners.