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Greg Hopkins

  • Chief Executive Office

Greg Hopkins is chief of staff/manager in the office of the CEO.


Greg joined RMI in 2017 and spent four years in the Carbon-Free Buildings Program, focused primarily on finance and policy interventions to decarbonize the buildings sector. He managed RMI’s Finance the Future initiative, which aims to climate-align federally supported housing finance in the United States. Greg has also supported the Institute’s external collaboration efforts with other climate NGOs as part of RMI’s Strategic Analysis & Engagement team.

Before joining RMI, Greg helped launch the US real estate investing platform of Allianz, and prior to that, worked in the debt financing and asset management departments of Tishman Speyer in New York City. His graduate studies focused on energy and environmental aspects of buildings and cities, including sustainable design, energy simulation, climate policy, and innovative financing solutions.


MS, Real Estate & the Built Environment, Harvard University Graduate School of Design

BA, Economics, Yale University


Boulder, CO

Authored Works
family viewing their new home

It’s Time to Climate-Align Housing Finance

What if you could finance green home improvements—such as efficient new windows, a heat pump, added insulation, solar PV, even resilience upgrades—as part of your mortgage when buying or refinancing your home? Not only would this offer conveniently timed capital from a trusted source (your lender), but at current interest…

aerial suburban houses

Build Back Better Homes

Single-family green mortgages can deliver significant benefits to low- and moderate-income households as well as investor-ready ESG impacts.


New Resources for Cities to Unlock Housing Improvements

As we all spend significantly more time inside our homes during COVID-19 shelter-in-place and stay-at-home orders, understanding how our homes perform (and the implications for affordability, comfort, and health) has arguably never been more important. And yet in most parts of the country, the status-quo is that residents…


Getting to Zero in Buildings: Insights from zLab

In October, 2019, Rocky Mountain Institute (RMI) and New Buildings Institute (NBI) organized an inaugural zLab to bring together industry leaders to brainstorm solutions and develop action plans around three topics: building electrification for decarbonization, advanced decarbonization policies for existing buildings, and unlocking new value through grid-interactive buildings. RMI has…


Defining the Future of the Built Environment

Today, buildings account for nearly 40 percent of greenhouse gas emissions. Thus, transforming the building stock is essential to ensure a decarbonized energy system and to keep global temperature rise below 2°C. That’s what nearly 600 leading policymakers, design professionals, building owners, and systems manufacturers were discussing at the Getting to…