One of the things I have been working on this last couple of months was a prototype of a Decision Support System (DSS) for web based interaction with In-Stream Tidal Power data and models. Renewable energy is a big interest of mine and I was lucky enough to be involved in a local effort to look at In-Stream Tidal Power potential for Washington State.
Here is a link to a video showing some of the basic operation of the tool. We worked to integrate some post-processing analysis of 2-D circulation modeling to create both visual (maps) and tabular (graphs) on the fly via the web interface. The work is based on Django, ExtJS, OpenLayers, Mapserver and a few other Open Source GIS projects from OSGeo. Hopefully round 2 funding will happen to continue allow us to continue on with this fun project.