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Sensor Networks|Energy Management|Renewable Energy|Mark Allewell|Smart Home|Solar
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Energy-saving tech for large residential developments in SA

Image of a computer screen showing Sensor Networks' geyser management system

Sensor Networks' geyser management system

9th January 2026

     

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A solar farm geyser management system built for large-scale residential developments has been introduced by smart home and energy-management technology company Sensor Networks. 

The upgraded system is designed to give developers real-time visibility and centralised control over thousands of geysers, in a bid to reduce electricity costs, help improve grid stability and unlock greater value from solar installations.

“Large estates often experience synchronised geyser usage during morning and evening peaks, creating strain on PV and battery systems. Our solution installs a smart controller on every geyser, all connected to SensorDesk, our company’s cloud-based energy management platform. Developers can instantly switch off units during low-generation periods, automate heating schedules, and redirect excess solar into water heating using real-time data and advanced algorithms,” says Sensor Networks CEO Mark Allewell

By directing surplus solar into water heating and protecting inverters during peak demand, the local tech company says it is giving developers a new level of precision. It asserts that developers report immediate efficiency gains, lower grid reliance and improved operational control. 

Sensor Networks says it is preparing to scale the technology for a nationwide roll-out, with upcoming enhancements to include predictive optimisation and AI-driven decision-making.

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