Custom curve flhs

[kaskranenburgQ]

This PR aims to close #3119.

It does so by updating the flh inputs for geothermal, solar thermal and hydro technologies.
Please note that the produced energy of each of the technologies in the input statements will change with the flh's expect for buildings_space_heater_solar_thermal & households_water_heater_solar_thermal, since the energy production of these technologies is set via share inputs and not via a combintion of capaicty and flh's.

[mabijkerk]

@kaskranenburgQ will this change model results? If so, we cannot merge it without discussing it with our clients.

[kndehaan]

Just did a quick scan of the changes. In addition to Mathijs' question and remark, I think we also need to write a migration, since the inputs that will be deleted with this PR can be set in scenarios... Let's discuss in the sprint.

[kaskranenburgQ]

In the modeler sprint we discussed whether a scenario migration was necessary for the changes that were made in these inputs. We concluded that an investigation about the current working of the input statements was necessary: Do these inputs work when you set them in the backend? And do they work when we upload a curve?

I found that the input statement does work. If set:
flh_of_geothermal_heat: 1000 in a blank nl2019 scenario on master, I see that the full load hours of the node agriculture_geothermal will be changed to 1000.0:

However, when I then upload a capacity profile via the front-end:

The flh setting is removed from the inputs:

And the full load hours of agriculture_geothermal is reverted back to it's orginal value:

To conclude:

• The flh inputs work as a back-end input
• Uploading a curve is not functional and resets the input when it is set.
• Therefore there is a great chance that users who 'accidentally' have set the input have overwritten the input with a curve.
• We should check if this is the case.

[louispt1]

I had a look at the scenarios through the server. I couldn't always parse the user_inputs for older scenarios for this hash serialisation issue for some of the values, especially in older scenarios:
Tried to load unspecified class: Rational (Psych::DisallowedClass)

But from the scenarios which I could check, and definitely for all the scenarios in the etengine pro backup, none of these inputs are set:

• flh_of_solar_thermal
• flh_of_geothermal_heat
• flh_of_hydro_river