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utwente-energy / alpg

Artificial Load Profile Generator for DSM
GNU General Public License v3.0
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simulation with data from TMY-generator + electricity needed to warm up the house #3

Closed LiesDebr closed 1 year ago

LiesDebr commented 2 years ago

Hello!

I want to use this generator in my masterthesis (Simulation of electrical load profiles of residential prosumers) but I run into two problems.

The first question I have: is the power needed to warm up the house (conventional, HP or CHP) summed up in the output file: 'Electricity_Profile'? The heating of the house is mostly one of the biggest consumers so for my simulation this is also needed in the load profiles.

The second problem I have: when I use data from the TMY-generator (https://re.jrc.ec.europa.eu/pvg_tools/en/#TMY) the GHI-data is provided in W/m² hourly. Because the model from ALPG asks the GHI in J/cm² I multiply the values from the TMY-generator with 0,36 so the data is now provided in J/cm². However, this leads to larger values for GHI than Twente's sample file has (10 times larger sometimes). As a result, the generated energy of the solar panel installation is also at least 2 times larger. I compare data from the Netherlands (Twente, in input ALPG) with that of Belgium (Gent, TMY) so there is normally not much difference in weather conditions here. My question is whether I convert the W/m² correctly in the first place and whether I can possibly modify something in the program so that I can leave the data in W/m² hourly and insert it that way.

Thanks in advance

GENETX commented 2 years ago

Hi LiesDebr,

To answer your questions:

  1. No it does not include space heating. The resulting output files are used to generate heating demand using our DEMKit simulator. We cannot use static data here as control might change the heating demand significantly. If you like, you can mail me to also get a license for DEMKit ( https://www.utwente.nl/en/eemcs/energy/demkit/ ), with which you'll be able to generate heat demand profiles.
  2. The calculation seems to be fine. If I download the TMY data (picked a location closeby Twenthe weather station) and multiply by 0.36, I get a maximum of 330 J/cm2, which seems to be about right. Perhaps importing the data is causing problems due to comma-dot interchange between Dutch mode and English mode? Anyway, you could have a look here, the PC code starts at line 308: https://github.com/GENETX/alpg/blob/master/devices.py

Best, Gerwin