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James Mandel

Managing Director
  • Buildings

Jamie Mandel is the Managing Director of the Buildings Program at Rocky Mountain Institute. The Buildings program focuses on supporting the cost-effective decarbonization of the world’s buildings, which currently are responsible for 40% of global GHG emissions. Jamie leads work on net-zero energy district energy planning, deep energy retrofits, new technology, and policy, including the support of New York’s Carbon Neutral Buildings Roadmap, in the US as well as China and India. Prior to joining the Buildings program, Jamie was the Principal overseeing RMI’s distributed energy resources work, including solar, storage, and demand flexibility.


Prior to joining RMI, Jamie worked for McKinsey and Company on energy and sustainability topics.


Jamie holds a Ph.D. in Ecology and Evolutionary Biology from Cornell University. He is on the board of WattTime.org, an RMI market-affiliate focused on helping customers choose the cleaner power.


Basalt, CO

Twitter Handle


Authored Works
Outlet Blog Post

Next-Generation Controls: The Missing Link of High-Performing Buildings

With many exciting advances in data analytics, machine learning, grid integration, user interaction, and renewable energy technologies entering the buildings industry, it is easy to get caught up in the vision and potential of high-performance buildings. The unfortunate reality is that many buildings designed to high-performance standards struggle to deliver…

Outlet Blog Post

Catalyzing the Market for Automated Emissions Reduction

Download the charrette report: Catalyzing the Market for Automated Emissions Reduction In March, Rocky Mountain Institute and our partners convened more than 60 stakeholders from across the electricity industry for two days in Chicago to explore the potential for a new and promising technology: automated emissions reduction, or…

Outlet Blog Post

Why We Still Need To Discuss Grid Defection

The rapidly declining costs of distributed energy resources (DERs), including rooftop solar photovoltaics (PV) and behind-the-meter batteries, have introduced new dynamics into a traditionally slow-moving electricity industry. This paradigm shift has ushered us into a new era where previous assumptions about how, where, and at what scale electricity is best…

Outlet Blog Post

Combating Climate Change by Measuring Carbon Emissions Correctly

Guest Author Gavin McCormick is co-founder and executive director of WattTime. Carbon emissions are arguably the most important thing for our society to learn how to manage in the coming years. The largest single source of U.S. carbon emissions is our electricity system. And yet, we do not measure emissions…

Outlet Blog Post

Capturing the Full Benefits of Demand Flexibility

Demand flexibility—allowing household devices like HVAC systems and smart appliances to interact with the electric grid in response to real-time price changes—can save customers money and lower the overall cost of electricity. In our recent paper, The Economics of Demand Flexibility, we analyzed the economics of making…