Look at this blog post by M.A.G. developer Zipper Interactive:
http://blog.mag.com/blog/2010/08/mag-escalation-video-flythroughs/
Watch the videos of the new maps. What do they all have in common? Well one of them has a ton of solar panels, another has wind turbines and the last one is called Isla de Magma, so I guess geothermal thermal energy.
http://blog.mag.com/blog/2010/08/mag-escalation-video-flythroughs/
Watch the videos of the new maps. What do they all have in common? Well one of them has a ton of solar panels, another has wind turbines and the last one is called Isla de Magma, so I guess geothermal thermal energy.