The smart meter uses estimates for time of day usages based upon the equipment specified in the house usage. The meter just records time and energy consumption, and the algorithm breaks the usage down with estimates. Its a typical financial allocation of a total into components using some historical assumptions and some real time data, like appliance energy consumption assumption and daily temperature ranges real time data.
The hours from like 10-11PM to 5-6 AM is assumed to be the always on appliances, adjusted for temperature.
the hours from like 4 PM to 7PM is assumed to be dinner prep and cooking.
The hours from 7AM to 7 PM is considered daylight hours and the opposite are night time lighting hours.
Daylight hours have certain characteristics, night time lighting hours have other characteristics,.
Consultants' data and purchased data for appliance energy consumption is entered into your algorithm and the estimates come out.
The always on energy consumption is base load assumption.
The variations by hour is split by estimate assumptions . . .
I entered our house personalized data, and the questionnaire doesn't make a distinction between an electric golf cart and an electric car for estimates. I did email them they should consider that assumption split given the high number of electric golf carts unique to the villages.
Unless you manage your money by expense minimization, its all relative to how you want to use the data to estimated information to change anything. The interesting part is that historically, non renewable power generation was maximized during the day and minimized at night. With solar energy, the additional power generation is during the day coinciding with peak demand, so the non renewable power daylight generation increase can be reduced, and the non renewable generation can be more stablized throughout the day. Theoretically, that should reduce the cost of high demand energy usage, but not sure if legacy standardized messaging now takes that into consideration or not, or why change legacy messaging when cloudy stormy days are still happening
YMMV
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