Welcome to The
Green Energy Economy Center

The Green Energy Economy Center at Challenge International is a connecting point where you can exchange information, attend online events and explore the latest developments in renewable energy, green building, transportation, civic policy and energy efficiency.

Challenge International Inc. was formed in 1996 by President & CEO, Sierra Dall. Over the years it has evolved from being a web conferencing and conference calling consultant/broker to a company that now also uses these services to bring cities/towns, universities, utilities, businesses, and industry professionals together worldwide to explore leading-edge green energy solutions for the future.

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Contact us or call 303.281.9111

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DISCLAIMER: Challenge International, Inc. reserves the right to determine which organizations, products or services are appropriate for inclusion in its programs. Challenge International will not be held liable for the performance of participating organizations or the content of their websites or presentations. Nor will Challenge International, Inc. or any of its participating businesses be held liable for damages or injury as a result of your participation in any of the events or programs offered through Challenge International, Inc.
PRIVACY POLICY: All information obtained by Challenge International, Inc. will be used only for the purpose for which it was intended and will not be sold or distributed to third parties without permission.
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