Most of us will have a hot water tank somewhere in our home. In some ways they are very straightforward bits of equipment – a well-insulated metal cylinder with some pipes connected to it, and perhaps a direct electric heating element as well. But a number of companies are looking at bringing hot water storage into the modern age, and as heating is increasingly electrified, integrating hot water tanks with our electricity system. In this episode, Jon Slowe is joined by three guests; Martin Allman, Chief Commercial Officer at Mixergy; Stavros Sachinis, Vice President of IoT Applications at Centrica; and Delta-EE expert, Klara Ottosson.