Emma Snaak, 33, and her father Hans Snaak, 67, have developed a device through their company Solyx Energy that enables households to use excess solar power to heat water. They see the approaching end of the net-metering scheme as an opportunity, and interest in the device is reportedly increasing.

Emma Snaak wants to scale up quickly, while her father favors a more cautious approach and says they should not be driven by outside pressure.