*** Dataset accompanying the paper: the Utilisation of waste heat from electrolysers – Unlocking local optimisation ***

Els van der Roesta,b*, Ron Bolc, Theo Fensd, Ad van Wijka,e
a KWR, Water Research Institute, Groningenhaven 7, 3430 BB Nieuwegein, The Netherlands. 
b Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2638 CN Delft, The Netherlands
c Allied Waters, Groningenhaven 7, 3430BB Nieuwegein, The Netherlands
d Formerly Delft University of Technology, Brasemdaal 95, 2553NC Den Haag, NL, The Netherlands
e Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2638 CB Delft, The Netherlands
Corresponding author: Els van der Roest
Contact Information:
E.vanderroest@tudelft.nl/els.van.der.roest@kwrwater.nl
KWR Water Research Institute, 
Groningenhaven 7
3430 BB Nieuwegein
The Netherlands


***General Introduction***
This dataset contains raw model results from 3 different scenario's as part of a publication
on the utilisation of waste heat from a 2.5 MW electrolyser.  
It is being made public to act as supplementary data for publication(s) and the PhD thesis of Els van der Roest. 
Also, it might be used by other researchers.

The dataset was created during model runs in the period between March 2022 - December 2022 as part of the H-Flex project.

The H-Flex project is funded by the Dutch National Chamber of Commerce (RVO) via the DEI programme (Demonstration Energy Innovation) with project number DEI4891013.
The electrolyser in the H-Flex project is operated by Hysolar (https://www.hysolar.nl/en) and co-funded by the EU LIFE programme via the LIFE NEW HYTS project (LIFE20 CCM/NL/001664). 


***Description of the data in this data set***
All files contain hourly values of results produced with the Power-to-X model (a multi-energy-system model)
in Python, for the period 2010-2019. 
The files contain the resulting data of a model run/runs for a scenario of hydrogen production and heat utilisation (first sheet), 
with both hourly data and grouped data per year, as well as the parameters used in this scenario (second sheet).
The scenarios are described in section 2.3 of the published paper: *** DOI will be added here ***

We define the following scenarios plus their respective dataset name:
Case 1a & b - Data_Case_1a_b.xlsx
Case 2 - Data_Case_2.xlsx

The column names in the sheet 'Hour_data' of the data files are described below:
			Unit		Description
Date			dd-mm-yyyy	date within the run period	
Month			-		number of the month
Hour			-		hour of the day
Time			-		time in days since the start of the run period
E_to_electrolyser	kWh/hr		total amount of electricity used in the electrolyser
H2_prod			kg/hr		hydrogen production by electrolyser
Heat_from_electrolyser  kWh/hr 		heat production by electrolyser (total)
Heat_up_inlet_water 	kWh/hr 		heat necessary to heat up the incoming water to the electrolyser
Heat_loss_transport  	kWh/hr 		heat loss during transport to the consumer
Heat_elec_after_he 	kWh/hr 		available heat after heat exchanger with a fixed capacity
Heat_used_consumer      kWh/hr 		available heat after application of the % of overlapping working hours
Electricity_HP_consumer kWh/hr 		electricity demand of the heat pump at the consumer side (Case 1b)


Additional column names for Case 2:

Temperature		degrees C	air temperature of a selected weather station in that hour (in this case De Bilt, NL)
Spaceheat_dem		kWh/hr		spaceheat demand of the neighbhourhood
Tapwater_dem		kWh/hr		tapwater demand of the neighbhourhood
t_aq_m inf (C)		degrees C	temperature of warm well as calculated by MODFLOW (updated every 24 hours)
t_aq_w_mf (C)		degrees C	temperature of hot well as calculated by MODFLOW (updated every 24 hours)
Q_dhn_kWh		kWh/hr		heat demand of district heating network including heat losses during transport
Q_dhn_noloss_kWh	kWh/hr		heat demand of district heating network excluding heat losses during transport
cop_hp			-		coefficient of performance of the heat pump
E_dhn			kWh/hr		total electricity use for pumps in the DHN
Rest_heat_stor		kWh/hr		amount of rest heat from fuel cell and/or electrolyser that is stored in the HT-ATES
Rest_heat_dir		kWh/hr		amount of rest heat from fuel cell and/or electrolyser that is used to fulfill a direct heat demand
Heat_to_buffer 		kWh/hr 		amount of rest heat stored in buffer
Heat_buffer		kWh		heat stored in a (above ground) small buffer - only the amount of waste heat is shown
Heat_utilised 		kWh		waste heat utilised by the consumer after taking into account the loss in the district heating network 


