Spatial data will play an important role in the development of the smart grid. However, as this article from cnet suggests, one of the requirements will be increased timeliness and accuracy of the data. As discussed many times here, such requirements can also result in increased risk.
If you can ignore the "sky is falling" tone of the following blog post on the Electronic Frontier Foundation website, you will find the post raises some interesting points. As discussed here before, in-house lawyers will find it challenging to deal with requests from law enforcement for location information on their customers given the stakes involved and the uncertainty in the law.