Voltage Optimisation Energy Efficiency Work Given a ‘Tick of Approval’

Voltage optimisation and voltage stability ensures consistent and optimal electrical supply to an organisation’s premises, and results in a range of cost saving benefits.

With supermarkets typically consuming the majority of their energy in their retail operations through refrigeration and air conditioning, Woolworths selected Captech to implement cost saving voltage optimisation measures by supplying 100 voltage optimisation units to Woolworths’ sites nationwide. The project included site energy analysis to identify those stores suitable for voltage optimisation.

In these types of environments, recipient organisations can typically expect energy savings of up to 15% for their voltage optimisation units. This often equates to a two to three year simple payback period on investment.

Partnering with Ortea, Captech commissioned the manufacture of the voltage optimisation units and undertook the structural and electrical engineering required to install the customised units to each site.

Once the voltage optimisation units were in operation, Woolworths engaged industrial energy efficiency experts Out Performers to independently measure and verify the energy savings for this Captech project.

Out Performers studied a sample of six of the 32 stores where Captech voltage optimisers were installed, using the government recognised IPMVP M&V protocols in its calculations.

The good news is that the summary results revealed all either exceeded or matched energy saving predictions (see the case study for further details).