30kW Fox ESS Inverter Installation Powers Kawuleza Electrical Contractors

Helping a Germiston Business Slash Electricity Costs

When Kawuleza Electrical Contractors, a Germiston-based business, faced high electricity costs and unreliable grid power, they turned to One Energy for a solution centred around the 30kW Fox ESS Inverter. This system, paired with battery storage and solar panels, helped reduce their grid dependence by 90%, cutting costs and improving power reliability.

Smarter Power with Generator Integration

To ensure reliable power, One Energy integrated the existing generator into the system. When Eskom’s supply drops, the generator automatically activates to support the batteries. However, because it runs only when needed, the business saves significantly on fuel and maintenance. This approach also extends the generator’s lifespan.

Even though the roof was not north-facing, One Energy installed an east–west solar array. This layout captures sunlight earlier in the morning and later in the afternoon. Consequently, the panels produce power for longer each day and increase overall system efficiency — a major advantage for daytime operations.