The Phase and Amplitude Gradient Estimation (PAGE) method of calculating acoustic intensity from multiple pressure measurements [Thomas et al., JASA 137, 3366–3376 (2015)] has been used successfully to calculate active intensity in the laboratory and in-field experiments. The primary result is that the PAGE method increases the bandwidth over which accurate vector intensity estimates can be obtained. Further work has investigated the application of the PAGE method to calculate other energy-based quantities, including the reactive intensity. Simulated pressure and particle velocity fields have been calculated for a single monopole, two out-of-phase monopoles, and, via Rayleigh integration, a baffled circular piston. The analytical intensity fields are then compared to the PAGE and the traditional p-p methods for obtaining both the active and reactive intensity, both in the near and far fields. [Work supported by NSF.]