Energy remains the most critical resource in sensor networks. In static sensor-net applications where most events can be calculated a priori, energy management is often done implicitly and manually by application developers. With the advent of database interfaces to sensor nets, this is no longer possible due to dynamically created queries. There are several scenarios in which it is desirable to get an accurate account of the resources a sensor net consumed on behalf of a certain query. In this

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... work, we propose to adapt the Resource Container concept from the desktop computing world to sensor networks in order to facilitate dynamic energy accounting.