The Energy Storing and Efficient Air Conditioner (ESEAC) is a breakthrough commercial HVAC technology that won a prestigious 2025 R&D 100 Award for redefining how buildings are cooled and dehumidified. Developed by the National Renewable Energy Laboratory and commercialized by Blue Frontier, ESEAC integrates energy storage directly into the air-conditioning system, using a liquid desiccant process to separate humidity control from cooling. This lets the system shift most electricity use to off-peak hours or times when renewable power is available, greatly reducing electricity consumption and peak load on the grid. In a recent R&D World interview filmed at the awards, the team behind ESEAC discusses its innovation, impact, and what the recognition means for the future of efficient, grid-friendly building cooling.
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