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Clean Edge, Inc., founded in 2000, serves corporate, utility, and financial clients working to transition to a clean-energy economy. The firm is a clean-tech stock indexing pioneer, having published its first index with Nasdaq in 2006. Current stock indexes track the U.S. and global clean energy, water, transportation, and grid infrastructure markets. Clean Edge, along with the GridWise Alliance, also co-produces the annual gridCONNEXT conference, convening hundreds of industry innovators and stakeholders working to build a modern 21st century grid.

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Ryan Popple with Ron Pernick's picture

Five Questions with Ryan Popple on the Electrification of Transportation

by Ryan Popple with Ron Pernick

A series of insights from leading smart-grid, clean-energy, and utility experts speaking at gridCONNEXT.

Ron Pernick: Just five years ago, very few people took electric buses seriously, but now many believe they will revolutionize city transport. In addition to technology advancements and declining costs, what’s driving this shift?

Ryan Popple: One of the big shifts is that cities are taking transit and infrastructure a lot more seriously, with a focus on low-carbon solutions. Similarly, the public...

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Stock Indexes

Clean Edge stock indexes cover diverse sectors including clean energy, transportation, energy storage, electric grid, and water. CELS tracks U.S.-traded clean-energy companies; GWE covers global companies engaged in the wind industry; HHO tracks U.S.-listed companies in the potable water and wastewater market; and QGRD covers global smart grid and grid infrastructure firms. First Trust offers ETFs based on these four indexes.

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