US Patent 11,779,488

High-Efficiency Net‑Zero Water Industrial Cooling Solution

CleanCold’s flagship technology, VacuCool, recycles 100% of its water and uses no toxic refrigerants to provide effective cooling with lower operational costs for the same capital expense in both data center cooling and industrial refrigeration applications.

VacuCool
20%

Lower Total Cost of Ownership compared to competing cooling systems

22%

Lower Operating Costs compared to competing cooling systems

17Billion

Gallons/yr of Data Center Water Usage, increasing 5%/yr

18%

Lower Total Cost of Ownership compared to competing refrigeration systems

43%

Lower Operating Costs compared to competing refrigeration systems

Why VacuCool

Key advantages driving adoption

How VacuCool Works

Dry-steam driven water evaporation under vacuum.

Steam reuse dramatically lowers the input energy requirement for cooling as it takes 17% the energy of boiling water to rejuvenate cool steam.

Simplified Schematic of Dry Steam Vacuum-Driven Water Evaporation Cooling System
Simplified Schematic of Dry Steam Vacuum-Driven Water Evaporation Refrigeration System
Data Center Economics

Data Center Cooling Capex

Data Center Cooling Capex

Scatter chart. 3 data tables follow.

Data Center Cooling Capex: Low
Power (x) Cost (y)
Row 1 50 $68
Row 2 100 $135
Row 3 150 $203
Row 4 250 $338
Row 5 500 $675
Row 6 1,000 $1,350
Data Center Cooling Capex: High
Power (x) Cost (y)
Row 1 50 $90
Row 2 100 $180
Row 3 150 $270
Row 4 250 $450
Row 5 500 $900
Row 6 1,000 $1,800
Data Center Cooling Capex: CCT
Power (x) Cost (y)
Row 1 50 $68
Row 2 100 $138
Row 3 150 $182
Row 4 250 $298
Row 5 500 $596
Row 6 1,000 $1,169

Note: Numbers modeled based upon replacing a three-effect absorption chiller with a PUE of 1.22

About Us
Ellen E. Sheets, MD, MBA Co-Founder & CEO esheets@cleancoldtech.com · 978-828-1395 · LinkedIn
Dr. Sheets brings products to market that improve human wellbeing. Her research spanned the diagnosis and management of cervical cancer, consulting on the ThinPrep Pap Test, cervical spectroscopy at the MIT Spectroscopy Lab, and HPV immunology supporting vaccine development. After moving into medical device and diagnostics, she turned to commercial cooling to build a system that eliminates greenhouse gas emissions and net water use.

Professional Preparation

Education

Organization and LocationDegreeYearField of Study
New York University, Stern School of Business, New York, NY, USMBA2007Business & Finance
University of California, Irvine, CA, USFellowship1983Gynecologic Oncology
University of Michigan Medical School, Ann Arbor, MI, USMD1980General Medicine
University of Michigan, Ann Arbor, MI, USBS1976Autonomic Pharmacology

Appointments and Positions

2023 – presentCEO, CleanCold Technologies LLC, Woburn, MA, US
2020 – 2023CEO, SeQure Dx Inc., Waltham, MA, US
2019 – 2020Entrepreneur in Residence, Partners Innovation Fund, Boston, MA, US
2015 – 2018CEO, CSA Medical, Lexington, MA, US
2012 – 2018Chief Medical Officer, CSA Medical, Lexington, MA, US
2010 – 2012Chief Medical Officer / Vice President, North America R&D, QIAGEN, Inc., Gaithersburg, MD, US
2008 – 2010Chief Medical Officer / General Manager, Predictive Biosciences, Lexington, MA, US
2006 – 2008Chief Medical Officer / Senior Vice President, Hologic Inc., Bedford, MA, US
2002 – 2006Chief Medical Officer, Cytyc Corporation, Marlborough, MA, US
1987 – 2002Associate Professor, Gynecologic Oncology, Brigham and Women’s Hospital / Harvard Medical School, Boston, MA, US
John O’Connor, Ph.D. Co-Founder & Chief Technology Officer joconnor@cleancoldtech.com · 508-523-2285 · LinkedIn
John has 35+ years across refrigeration and cooling, medical devices, border and aviation security, and semiconductor capital equipment, leading marketing, design, and program management of complex production systems. He has guided organizations through breakthrough technology shifts and full product life cycles. He holds 24 issued US patents, has more pending, and is an invited presenter at technical conferences worldwide.

Professional Preparation

Education

Organization and LocationDegreeYearField of Study
Yale University, New Haven, CT, USPhD1986Physics
Yale University, New Haven, CT, USMPhil1982Physics
College of the Holy Cross, Worcester, MA, USAB1979Physics and Mathematics

Appointments and Positions

2023 – presentCTO, CleanCold Technologies LLC, Woburn, MA, US
2019 – 2024Chief Engineer, Viken Detection, Burlington, MA, US
2015 – 2018Vice-President, Systems Engineering, CSA Medical Inc., Lexington, MA, US
2007 – 2015Vice-President of Engineering, Analogic Corporation, Peabody, MA, US
2003 – 2007General Manager, Endovations, Boston Scientific Corporation, Marlborough, MA, US
1998 – 2002Director of Marketing, Varian Semiconductor Capital Equipment Corporation, Gloucester, MA, US
1985 – 1998Vice-President of Engineering, Genus Inc., Newburyport, MA, US
John Yates III, J.D. General Counsel & Chief Business Officer jyates@cleancoldtech.com · 781-622-4430 · LinkedIn
John has over five years of legal experience in life sciences licensing, private M&A, and venture capital work. He has advised on complex commercial licensing and contracting, corporate formation and funding, and private M&A at Mintz Levin and Goodwin Procter. A Phi Beta Kappa graduate of the University of Michigan and James Wilson Scholar at Penn Law, he adds adds environmental science knowledge from his undergraduate studies and sales and marketing experience from his career prior to law school.

Professional Preparation

Education

Organization and LocationDegreeYearField of Study
University of Pennsylvania School of Law, Philadelphia, PA, USJD2020Law
University of Michigan, Ann Arbor, MI, USBS2015Environmental Science

Appointments and Positions

2026 – presentGeneral Counsel & Chief Business Officer, CleanCold Technologies LLC, Woburn, MA, US
2024 – 2026Licensing Associate, Goodwin Proctor, Boston, MA, US
2021 – 2024Corporate Associate, Mintz Levin, Boston, MA, US
2015 – 2016Power Home Remodeling Group, Sales Consultant, Waltham, MA, US
2013 – 2015Graham Sustainability Institute, Program Assistant, Ann Arbor, MI, US
Contact Us

Let’s bring VacuCool to market together.

CleanCold is licensing VacuCool to industry partners now. Tell us about your application and we will walk you through fit, integration, and economics.