Documentation of graph change in Residences (due to initialization in refinery)

[Richard-Deuchler]

This tickets documents the change of edges types that were carried out during the initialization of the graph via refinery.

In the end, the types of 4 edges is changed from flexible to share. Why this is necessary, is explained with the help of one example:

The boxed converter could not be calculated by refinery. The relevant converters are re-drawn:

In principle, refinery should know all energy demands in this situation, only because the the unknown edge is flexible, refinery does not send the "remaining" energy from households_useful_demand_for_space_heating_after_insulation_and_solar_heater_and_add_on to the incalculable households_useful_demand_for_space_heating_after_insulation_and_solar_heater.

In total there are 4 converts that are difficult to calculate because they have a flexible edge: households_useful_demand_for_space_heating_after_insulation_and_solar_heater_and_add_on households_useful_demand_for_space_heating_after_insulation_and_solar_heater households_useful_demand_for_hot_water_after_solar_heater_and_add_on households_useful_demand_for_hot_water_after_solar_heater

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There are 2 possible solutions to this problem: A. Create and export parent shares for the useful_heat flows in the Excel Residence Analysis. B. Change the edge types from "flexible" to "share" for these converters.

We decide to implement option B, because it keeps the analysis cleaner. We only want to create shares for final demands in Excel analyses, not shares for useful demand.

[Richard-Deuchler]

including @ChaelKruip , who implements the changes necessary in the 'update' statements in etengine/etsource.

[Richard-Deuchler]

To be done by @Richard-Deuchler:

• [x] clean up analysis (contains too many parent shares at the moment)
• [x] remove parent share for households_useful_demand_for_hot_water_after_solar_heater_and_add_on in the edges
• [x] set the edges in the hot_water section to "share".
• [x] once this is done, issue https://github.com/quintel/rdr/issues/112 will no longer be relevant (and should be closed).

[Richard-Deuchler]

assigning to @ChaelKruip for additional documentation, if needed. You can close the ticket.