I have a building with each zone supplied by a packaged unit (DX coil and gas furnace) and baseboard heater. The HVAC power consumption output shown by E+ has a lot of spikes but when I simply add the pumps, fans, cooling and electric reheat coils and baseboard heaters power consumption I do not see any spikes. Picture attached showing the HVAC power consumption output by E+ and then one generated by adding all HVAC components' power for a single summer day. Why is E+ showing spikes in the HVAC output?