security equipment maintenance

Security Equipment Maintenance

Global High Technology Ltd. is an authorised dealer and approved maintenance organisation for some of the world's most reliable security systems. We provide both regular and emergency services for various types of security equipment

power quality analysis

Power Quality Analysis

Decades of expertise and unique state-of-the-art equipment brought to you by Global High Technology Limited, Macau allows an enterprise of any type and size to address their power quality problems and find effective solution for energy saving

PV and Solar

photovoltaic solar simulation

PV Solar Simulation

The visualization in 3D mode provides you with detailed information on shadows cast at various times of the day and year, and consequently on likely reductions in yield.

The effect of power optimization on the system yield can also be precisely visualized in PV*SOL® premium

photovoltaic and solar thermal simulation

PV and Solar Thermal Simulation

The Polysun product range includes all the tools you will ever need to design, enhance and simulate your systems in the field of renewable energies.

Polysun includes solutions for solar thermal, photovoltaics, heat pumps and  geothermal systems


Profitability calculation tool in Polysun

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Global High Technology ltd.

Macau S.A.R.