Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid

In this paper, we model energy use in commercial buildings using empirical captured through sMAP, a campus building data portal at UC Berkeley. We at-scale experiments in a newly constructed building on campus. By the supply duct static pressure (SDSP) for the main supply air duct, induce a response on the main supply fan and determine how much ancillary flexibility can be provided by a typical commercial building. We show the consequent intermittent fluctuations in the air mass flow into the does not influence the building climate in a human-noticeable way. We that at least 4 GW of regulation reserve is readily available only commercial buildings in the US. Based on predictions this value will to 5. 6 GW in 2035. We also show how thermal slack can be leveraged to an ancillary service to deal with transient frequency fluctuations in grid. We consider a simplified model of the grid power system with time demand and generation and present a simple control scheme to direct the service power flow from buildings to improve on the classical generation control (AGC) -based approach. Simulation results are to show the effectiveness of the proposed methodology for enhancing frequency regulation.