Energy saving with intelligent ventilation

Heat build up inside buildings from the sun and also from internal sources such as lighting, people, and electrical equipment is frequently removed by air conditioning plant.

For each unit of heat energy removed costs two units of electricity.

As a result, efforts to make buildings green and reduce their carbon footprints are increasingly focusing on the use of free natural ventilation.

It costs nothing to run, and by controlling the opening and closing of windows and ventilators automatically, places of work can be made cooler, and healthier with fresh air.

Quality Power Engineering can assist your green projects by investigating all of the energy used in buildings, and implement cost saving measures. Capital payback times are often less that a year.

QPE specializes in undertaking special projects incorporating new or unusual technologies. QPE is a registered electrical contractor with the electrical contracting board #CT4115.

Naturally we offer test and inspection of electrical installations, including those with hazardous locations.

Certificates of compliance can be issued for qualifying installations. Please contact us for our fees schedule.

Design and manufacture of distribution boards and panels is undertaken in accordance with SANS standards.

The sun is rising on renewable energy

South Africa has an abundance of wind resources, and – coupled with its vast tracts of open land and infrastructure – the potential to become a “wind powerhouse”.

That’s the view of pioneers in the wind power revolution in South Africa, who say that in one province alone, wind has the potential to generate 10 times the official national wind energy estimates.

There are currently two key pilot wind power projects in South Africa: at Klipheuwel and Darling, both in the Western Cape.

The Western Cape’s winds are considered perfect for wind energy – prevailing winds are from two directions, and tend to blow during peak electricity consumption periods.

One of the most frequent causes of lost data and computer downtime are powerline ‘spike’ also known as ‘fast transients.’ Selecting the correct type of surge suppressors requires the advice of experts.

QPE has provided surge protection for the Telecom industry since 1995.

System earthing is frequently misunderstood, though it is vital for safety and protecting electrical equipment. A properly designed and maintained earthing system is a vital part of an electrical installation.

• Over voltage
• Under voltage
• Outages
• Electric Noise
• Harmonic distortion

Such disturbances in the power supply can adversely affect sensitive electronic devices, motors, processing operations and HVAC equipment. Quite simply, computers can lose memory and electrical equipment can sustain permanent damage if not properly protected. With electronic equipment now being used in virtually every aspect of business operations, higher standards of power quality have become a necessity.

Power Quality issues can be an unseen predator at your site that can have catastrophic consequences when left unchecked. For this reason, it is important to audit your site to identify any all all issues prior to experiencing preventable downtime.

Based on the energy losses & percentage loading of rotating equipment, energy conservation measures are presented with techno economic analysis. The energy saving areas normally identified are : compression / illumination loads, derating of blowers / fans, control mechanism, application of motor controllers, sizing of pumps, usage of TOD tariff etc.