California, Oregon, and Massachusetts Lead List of Top 10 Clean-Energy States

Clean Edge’s first annual U.S. Clean Energy Leadership Index, announced today, provides the industry’s most comprehensive and objective analysis and ranking of how all 50 states compare across the spectrum of clean-energy technology, policy, and capital. And while West and East Coast states dominate the top 10 rankings, innovation and investment opportunities are found across the map in places such as Colorado, Iowa, Texas, and Michigan.

See the Leadership Index Web Page | Learn More About the Subscription Service

According to Clean Edge’s assessment and ranking of more than 80 different state-level indicators, the top three states in the nation are California, Oregon, and Massachusetts. Washington, Colorado, New York, Illinois, Connecticut, Minnesota, and New Jersey round out the top 10. Indicators include such metrics as total electricity produced by clean-energy sources, hybrid vehicles on the road, and clean-energy venture and patent activity.



The Leadership Index paints an important and sometimes surprising picture of the U.S. clean-energy landscape with highlights such as:

  • California is #1 in overall clean-energy leadership by a wide margin, leveraging its history of technology innovation, rich bounty of natural renewable energy resources and investment capital, and consistently supportive government policies.

  • California leads in the technology and capital categories, but the #1 state for policy is Washington – just ahead of Massachusetts, which ranks first in regulations and mandates, and Illinois, the top state for incentives.

  • Iowa is the nation’s leader in utility-scale clean electricity generation as a percentage of total electricity, receiving more than 14 percent of its in-state generation in 2009 from wind power. No other state exceeded 10 percent electricity from large-scale clean-energy sources.

  • California-based companies accounted for nearly 60 percent of all U.S. venture capital investments in clean energy in 2009, but Massachusetts led in VC investments per capita.

  • Michigan, with its recent focus on electric vehicle and automotive battery technologies, is the #1 state for clean-energy patents – a key indicator in the human & intellectual capital area of the Index’s capital category.

"In this newly launched service we track more than 4,000 public and private data points across all 50 states," says Clean Edge cofounder and managing director Ron Pernick. "The industry needs to move beyond the days of using disaggregated and fragmented data to bolster subjective political claims about a state’s or region’s clean-tech prowess or as the basis of fundamental and significant business decisions. For the first time, Clean Edge is bringing timely clean-energy data and analysis under one roof, making this a critical tool for clean-tech decision makers within both the public and private sector."


Deep Data + Analysis = Critical Intelligence

The U.S. Clean Energy Leadership Index is a tool for regional comparative research, a source for aggregated industry data, and a jumping-off point for deep, data-driven analysis of the U.S. clean-energy market. In addition to the annual report that includes "report cards" for all 50 states, subscribers receive quarterly insight reports that focus on the most important technology, policy, and capital developments, and advisory services to help decision-makers sculpt their clean-energy strategies.

The subscription product is geared toward corporations, economic development agencies, investors, policy makers, technology innovators, foundations, and other key stakeholders actively involved in the clean-tech marketplace. Clean Edge leverages public and private data to generate each state’s leadership scores. Private data partners include Cleantech Group, R.L. Polk & Co., and Heslin Rothenberg Farley & Mesiti P.C. Public data sources include the Database of State Incentives for Renewable Energy (DSIRE), Energy Star, the Federal Energy Regulatory Commission, National Renewable Energy Laboratory, U.S. Department of Energy, U.S. Energy Information Administration, and U.S. Environmental Protection Agency, among others.

About Clean Edge

Clean Edge, the world’s first research and advisory firm devoted to the clean-tech sector, delivers comprehensive clean-tech insights to corporations, investors, governments, entrepreneurs, and other key stakeholders. The company integrates timely clean-tech data from dozens of sources with expert analysis to provide critical insights to its clients and subscribers. The firm’s offerings include industry-leading sponsored reports, events, stock indices, jobs board, and the U.S. Clean Energy Leadership Index and related consulting services. For more information, visit

Become a Subscriber

  • Receive the annual index report, state report cards (all 50 states), and market insight reports

  • Track the most critical trends and best practices

  • Ensure that your stakeholders are competing in the 21st century clean-energy opportunity - attracting investment, businesses, and jobs

For more information, or for a private demonstration, contact:

Ron Pernick

Managing Director


Next Market News Item

You can return to the main Market News page, or press the Back button on your browser.

Previous Market News Item

Market News