The Virtue energy storage system works by harnessing the induced negative power (back EMF) generated by Powerstar voltage optimisation technology to charge a storage medium and integrate it with renewable generation (if available). This ensures that users will always have optimal power at times of need as they have the flexibility to switch to the stored power at any time to suit their requirements.
The below charts show a typical load profile for a commercial store.
The green lines indicate low-tariff periods, the yellow lines represents medial tariff periods and the red lines the indicates the high peak tariff periods. Therefore the green shaded block section on the left hand chart illustrates the region that the facility needs to avoid to ensure it does not incur highest costs and inconsistent supply.
HHD profile of a commercial store load without on-site renewable generation
The chart on the right hand side illustrates how the Virtue energy storage system can enable the facility to come off-grid through the peak demand period by powering the facility through the energy storage system. The rest of the load profile remains unaltered, because the storage medium was charged using the induced negative power, not power from the grid.
Therefore this facility is not only saving money, but they are also directly reducing kWh usage, both for themselves and for the grid.
Powerstar South Africa, a distributor for market leading energy storage and voltage optimisation brand Powerstar, is currently saving Pick n Pay, South Africa’s second largest supermarket chain store on average over 8% in electricity costs across two of its stores. The company, which is enjoying its largest period of growth since entering the market