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Domestic User's needs

This is a simple tool aiming to facilitate the domestic load estimation from a practical ("end-user") point of view.

This tool also clearly identifies the consumption of each appliance, and perhaps will help optimising the customer needs options (for example, bring attention on stand-by or washing machines real cost in PV systems).

Appliances

For each appliance, you should define:

  • the number of devices, their individual power, the duration of their use.
  • the operating hours in the day :

Appliance_Hours

and the table will give the concerned energies.

You can define a daily profile for:

  • The full year
  • Seasonal values
  • Monthly values
  • With a weekly modulation (W-E use)

There is a tool for copying data from one month or season to other ones.

The Week-end option allows for concentrating the daily consumption on a specified number of days of the week only. This option may be specified independently for each season/month.

The Stand-by consumption may be extended to the week non-utilization days if desired.

Templates

This definition may be seen as rather tedious.

You can of course save them and reuse them in another project.

The program provides templates for representing :

  • a small basic SHS system with just lamps and TV/computers,
  • an enhanced SHS system with a fridge and little appliances (about 2 kWh/day),
  • a current household consumption with usual domestic appliances (12 kWh/day).