Last week the editors at and Renewable Energy World magazine traveled to Las Vegas to attend the 6th annual Renewable Energy World North America (REWNA) Conference and Expo. With almost twice the attendance of last year's event and more than double the exhibitors, the show's exponential growth in spite of a dismal economy is a testament to the strength of the renewable energy industry.

The problems for companies created by the recession are apparent. But the enthusiasm and recognition of the incredible prospects for renewables dominated the discussion.