Plentify

Plentify is a South African climate-tech company that builds AI-driven hardware and software to intelligently manage home energy use. Its flagship device, HotBot, is a smart controller for electric water heaters (geysers) that shifts heating to when power is cheaper and cleaner, while its SolarBot companion maximizes solar self-consumption. Founded in 2017 by Jon Kornik and Kailas Nair, Plentify links water heaters, batteries and solar inverters into a coordinated energy platform that cuts household electricity costs and eases pressure on strained grids. The company raised a roughly $15M Series A in 2025 to expand from South Africa into the UK, Australia and Brazil.