Energy saving in the heart of uShaka

  • April 25, 2013 | Siva Govender – Assistant Manager Maintenance and Engineering

One of the great advantages of being a leader in the Technical Department at uShaka Sea World is that you inspire and become inspired on a daily basis. So when I was tasked with assisting the team to reduce electricity consumption in the water purification plant, it became a team project.

Siva Govender, Assistant Manager Maintenance and Engineering at uShaka Sea World, takes a reading from the variable speed drive

A drop of water travelling from the ocean into uShaka Sea World through the piping network and out again travels a distance of 33km and passes through 219 pumps. About 380 cubic meters of water pass through the pipes ever hour, so coming up with a way to increase pump efficiency while reducing the electricity consumption presented an exciting challenge.

First we needed to do an electricity audit to find out exactly how much electricity the various pumps and motors were using. This information was then presented to both my colleagues and the association’s directors as we weighed up various options.

It was decided to install 69 variable speed drives on the existing pump motors. This would reduce the speed and power consumption needed to achieve correct flow rates with the delivery valves fully open. In January 2013, the three-month project began with great enthusiasm.

The installation went smoothly, and as promised, on completion of the final installation the speed of the motors was reduced to a point where marked savings in electricity could be achieved without compromising operational efficiency. 

Energy saving is now a focus in everything I do both at work and at home. Geysers can be exchanged for heat pumps, water-wise showerheads are easy to install, timers can be placed on outside and inside lights ... the list is endless. As you look around your home or work space, it becomes easier to find ways to reduce electricity consumption once you acknowledge that every watt counts.

Giant bullfrog gets a finger snack

The giant bullfrog is one of my favourite amphibians –…

All in a day’s work for an uShaka Sea World diver

It’s incredible that a diver can burn up to 20…

Fathers and daughters share a special bond

I left home for work at about 6am this morning…

Kelp delivery earns seal of approval at uShaka Sea World

On Friday, October 12, 2012, a delivery of fresh kelp…

Giant bullfrog gets a finger snack

The giant bullfrog is one of my favourite amphibians –…

Penguin Promises promoted on air

On International Penguin Day last year I was listening to…

All in a day’s work for an uShaka Sea World diver

It’s incredible that a diver can burn up to 20…

Fathers and daughters share a special bond

I left home for work at about 6am this morning…