Currently, ElectricPowerUsageSummary contains summary information about past and present billing period usage. Additionally, there are some electricity-specific measures including peakDemand.

 

As ESPI is applied to Gas and Water, there may be additional summary atttributes that apply to those utilities specifically. This update should accomodate them or perhaps make a more generic UsageSummary that supports a union of "dashboard" summary parts.