Electricity grids peak in late afternoon and early evening as energy use rises with people returning home, cooking dinner and engaging in after-work activities. At the same time, energy generation from renewable resources like solar ebbs away as the sun goes down. Instead of ramping up thermal plants, everything-to-grid technology mobilizes distributed assets like electric vehicles and batteries sitting idle to pull stored electricity back into the grid

More info here: https://www.weforum.org/stories/2026/06/the-top-10-emerging-technologies-of-2026/