The challenge is that our contemporary electric grid cannot control the generation of renewable energy (e.g., wind and solar power) as it can non-renewable sources like natural gas or coal. Therefore, innovations are needed for greater flexibility to control household energy use (or demand) as we transition to renewable energy sources. Our research team, based at Northeastern University, is trying to understand how “flexible” homes can be to balance the demands of the grid while continuing to provide comfortable spaces for occupants. This research is being conducted in partnership with the National Renewable Energy Laboratory (NREL) in Colorado.