The developers of energy flexibility apps & services turn available flexibility – which exists in the operation of assets – into CO₂ reductions or cost savings.
In effect, energy-consuming assets are turned on when the energy mix in the grid contains the most renewable energy (e.g. when the sun is shining) or when energy is the cheapest (often, those are the very same time hours). Next to shifting start times of processes, another prominent use case of energy flexibility are buffers and batteries.
Usually, this requires the software to plan a few hours ahead. No one likes assets to turn on and off suddenly.