Company Overview

Climate Positive Investors

Based in Annapolis, Maryland, Hannon Armstrong (NYSE: HASI) is the first U.S. public company solely dedicated to investments in climate solutions, providing capital to leading companies in energy efficiency, renewable energy, and other sustainable infrastructure markets. With more than $8 billion in managed assets, Hannon Armstrong’s core purpose is to make climate positive investments with superior risk-adjusted returns.

Investment Strategy

Our vision is that every investment should improve our climate future, which is why we require that all prospective investments are neutral to negative on incremental carbon emissions or have some other tangible environmental benefit, such as reducing water consumption.

Based on decades of investment experience across multiple interest rate and business cycles, intermittent governmental support for reducing carbon emissions, and several “boom and bust” cycles of business expansions in clean energy markets, we have created a climate-positive investment thesis based on the following theories:

More efficient technologies are more productive and thus should lead to higher economic returns.

Lower portfolio risk is inherent in a portfolio of smaller investments, generated by trends of increasing decentralization and digitalization of energy assets, compared to larger, centralized utility-scale investments.

Investing in assets aligned with scientific consensus and society’s general beliefs will reduce potential regulatory and social costs through better internalization of externalities.

Assets that reduce carbon emissions represent an embedded option that may increase in value if carbon regulations were to set a price on carbon emissions.

Deep Experience and Strong Partnerships

Our management team has extensive relevant industry knowledge and experience, dating back more than 35 years. We have long-standing relationships with the leading energy service companies (ESCOs), manufacturers, project developers, utilities, owners, and operators. Our origination strategy is to use these relationships to generate recurring, programmatic investment opportunities. Additionally, we have relationships with the leading banks, investment banks, and institutional investors from which we receive additional investment opportunities.

Key Markets



Energy Efficiency
Distributed Solar



Onshore Wind & Solar
Solar Land


Sustainable Infrastructure

Stormwater Remediation
Ecological Restoration

$3.2 Billion Portfolio

Diversified and Long-Dated Cashflows


Total Investments

$13 Million

Average Investment

17 Years

Weighted Average Life

Our History

We’ve accomplished much over the last four decades, and our unique heritage and pioneering spirit in clean energy finance still shapes the way we do business today. Learn more about where we came from and where we’re headed with climate positive investing.


We actively engage with a number of clean energy industry organizations, environmental NGOs and nonprofits with whom we are proud to be affiliated, including:

Hannon Armstrong Securities, LLC

Hannon Armstrong Securities, LLC, is a registered broker-dealer, member of FINRA and SIPC and subsidiary of Hannon Armstrong Sustainable Infrastructure Capital, Inc.