Hayzel provides a patented retrofit module that captures waste mechanical energy from HVAC expansion valves and converts it into electricity, allowing large commercial buildings, data centers, and hospitals to offset cooling electricity use. The plug‑and‑play unit installs in a week or less without major modifications, delivering on‑site power generation that reduces utility costs and improves sustainability.
Funding
Funding not disclosed
Founders
Product
Problem
Cooling systems in large buildings and data centers consume a significant portion of total energy use, with over one‑third of building energy costs attributed to air conditioning and up to 80% of operating expenses tied to cooling. Traditional HVAC designs waste a substantial amount of energy—particularly in the expansion valve—resulting in higher utility bills and increased carbon emissions.
Solution
Hayzel offers a patented retrofit module that captures the excess mechanical energy lost in HVAC expansion devices and converts it into electricity. The unit plugs directly into existing chiller or HVAC infrastructure without major modifications and can be installed in a week or less. Generated power is fed back to the building’s electrical system, offsetting a portion of the cooling load and reducing overall utility costs. By harvesting this otherwise wasted energy, Hayzel enables building owners to lower operating expenses while contributing to on‑site renewable generation. The solution is currently deployed in major data centers in California and is expanding across sectors such as hospitals, high‑rise offices, and other large facilities.
Target Audience
Primary customers are owners and operators of large commercial buildings, data centers, and critical facilities such as hospitals that rely heavily on continuous HVAC cooling and seek to reduce energy costs and improve sustainability.
Features
- Patented energy‑harvesting module that extracts over 20% of the unused cooling energy from expansion valves
- Plug‑and‑play design compatible with existing chillers and HVAC systems, requiring no major retrofits
- Rapid installation timeline of seven days or less for turnkey deployment
- On‑site electricity generation that feeds back into the building’s power grid, reducing net cooling electricity consumption
- Scalable solution suitable for data centers, hospitals, high‑rise buildings, and other large‑scale facilities