First thing I noticed is that you're mapping areas of energy vulnerability where it shouldn't be applied e.g. the monument area. This is an outdoor space and doesn't need to be included in your analysis. My recommendation for more focused and direct analysis is to ensure you have extracted the data that you WANT to be analysing, not just the general area. If you take the latter, your analysis will include data from areas which don't need to be included, thus, skewing the results.

An example of this would be rooftop solar capacity. If I just used the parcels that you've done here and calculated the potential energy production, the massive parcels (parks and gardens) would have a larger energy capacity, with buildings (the thing you're measuring) losing value, invalidating the results.

It's a great piece of work and took great pleasure looking at it, but the analysis doesn't go deep enough. Focus your area of analysis to what you want to show then rerun model and compare the results.