What is typical power consumption of FPGA devices
In general, the amount of power an FPGA "consumes" is related to the function it is performing and the frequency it is operating at. That's why you can't find an authoritative number; because "it depends". I suggest that you play around with the power estimation tools, figure out what the input fields mean, and then you'll have a much better understanding of the factors that contribute to the overall power consumption of the FPGA while it is running a particular design.