Hello Hilaria,
first of all, I would ask how the district heating is generated. Is it, for example, waste heat from industry and what happens if the site is closed? Or is it a [Blockheizkraftwerk] that is located somewhere in the neighborhood (then it would be correctly referred to as local heating)? Which energy source is used to generate the heat? What primary energy factor does the final energy then have (general topic and of interest within the scope of the Energy Saving Ordinance proof)? District heating does not have as optimal an efficiency as, for example, gas condensing technology.
You write that an advantage is that you don’t have to worry about anything later with district heating. I think it is a disadvantage that you CAN’T worry about anything! There is then no possibility to change the supplier if prices are increased or if the supplier even stops operating! Basically, in the future the gas price will at least not be oriented towards the oil price. Also, competition among gas suppliers will increase. This should benefit the customers.
An advantage of district heating is certainly that no costs for reinvestment in plant technology are required every 20 – 25 years. The often-mentioned advantage that district heating does not require a chimney, unlike gas heating, is not correct. Modern gas condensing systems come without this and under certain conditions only require a plastic pipe to the outside.
I hope I have given you a satisfactory answer.
Regards