To begin my analysis I did something simple. Google.
Green Energy resulted in the following top paid listings:
http://www.indieenergy.com/index.php
Visit the site and you’ll quickly learn that they are focused on geothermal heating and cooling. This simple concept isn’t new, but the market for geothermal is a big part of the future. There’s a smart interview with the CEO on the home page. He makes it a point to discuss how his company creates jobs within the communities where they operate. Jobs + Green = money. Smart.
I grabbed this image which shows the dirty work involved with getting down to clean heating and cooling.

Drilling for clean heating and cooling

He mentions a business concept called the “triple bottom line”. I would like to learn more about this.