Ryan-Rutenschroer-headshot

Ryan Rutenschroer

CEM, CBCP

John Leslie Solutions | Global Sustainability Strategist

Speaker

Track B: Renewable Energy and Emerging Technologies

Session B3: The Future of Renewable Energy: Trends and Innovations

April 24, 2025 | 2:00 pm - 2:30 pm

Achieving an Ultra-Efficient Cooling Plant through Retrofit, Automation, and Commissioning

“Achieving an Ultra-Efficient Cooling Plant through Retrofit, Automation, and Commissioning” explores how modernizing chiller plants with advanced technologies can lead to significant energy savings and enhanced performance. Chiller plants, essential for large-scale cooling, traditionally operate with high efficiency but often run their main motors at full speed, resulting in energy wastage and increased operational costs.

This presentation will delve into the transformative impact of integrating Variable Frequency Drives (VFDs) and advanced automation into existing chiller systems. By optimizing the chiller’s main motor operation, retrofitting with modern VFDs, and implementing comprehensive commissioning strategies, facilities can achieve substantial improvements in energy efficiency and cost-effectiveness.
Attendees will gain insights into the benefits of upgrading to high-performance VFDs, as well as the synergy between VFDs and building automation systems. Real-world case studies will illustrate the measurable savings and improved temperature control that can be achieved. Join us to discover how Siemens and John Leslie Solutions are setting new benchmarks in cooling efficiency through innovative solutions and strategic partnerships, delivering a swift return on investment and sustainable operation enhancements.

Speaker Bio

With over 25 years of experience in Hawaiʻi, Ryan Rutenschroer stands out as a pioneering force in sustainable facilities management. As a Global Sustainability Strategist, Ryan specializes in residential management, energy management, and building commissioning, focusing on creating environmentally conscious, multicultural, and regenerative spaces.

Ryan's portfolio showcases his dedication to sustainability and innovation. He has spearheaded numerous sustainability initiatives across commercial, educational, industrial, and residential facilities in Hawaiʻi. His notable projects include the Pacific Guardian Center, Hawaiʻi 's largest LEED-Gold (2016) and Silver (2010) certified commercial facility, as well as contributions to Allure Waikiki and the Hawaiʻi State Department of Education.

Driven by his vision for "Architecture for Healing," Ryan facilitates the creation, commissioning, and operation of spaces that are efficient, regenerative, and deeply connected to the cultural and spiritual heritage of their occupants.

Ryan’s expertise is supported by a robust educational background and certifications. He holds an Associate of Science degree in Yacht Fabrication and Repair from the University of Hawaiʻi -Honolulu and is currently pursuing degrees and certificates in German, French, Sustainability, and Global Studies at UH Mānoa. His professional credentials include Certified Building Commissioning Professional (CBCP) and Certified Energy Manager (CEM) designations from the Association of Energy Engineers (AEE), Building Operator Certification (BOC level II) from the Northwest Energy Efficiency Council (NEEC), Accredited Residential Manager (ARM) designation from the Institute for Real Estate Management (IREM), and is a licensed real estate agent in Hawaiʻi.

As a dedicated advocate for sustainable development, Ryan actively contributes to the community as Vice President of the Alliance Française of Hawaiʻi and a past Chair of the US Green Building Council-Hawaiʻi chapter’s Existing Building, Operations and Maintenance (EBOM) committee.

Currently, Ryan is advancing Hawaiʻi ’s resiliency and energy-efficiency goals through his role as an Energy Analyst with the University of Hawaiʻi system, and through collaboration with emeritus Energy Manager John Leslie, Sr. of John Leslie Solutions. Ryan’s work continues to shape a more sustainable and resilient future for Hawaiʻi and beyond.

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