Table of Contents

In a glance

This module generates load profiles of demand for space heating and hot water generation for a selected region. It uses default load profiles for the residential and tertiary sector on NUTS2 level and scales it to a given demand in those sectors and provides the load profiles separated for space heating and hot water generation.

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Introduction

Hotmaps provides generic and year specific heat load profiles on NUTS2 level. The user may wish to adapt the default profiles based on the information that he/she has. This calculation module give the possibility for scaling different constituting elements of the profiles up or down and obtain a new profile.

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Inputs and outputs

Input layers and parameters

Several layers and profiles are used from the default data set of the Hotmaps:

  • Heat density residential sector
  • Heat density non-residential sector
  • Gross floor area residential
  • Gross floor area non-residential
  • Industrial database
  • Load profiles for industry
  • Load profiles for residential heating
  • Load profiles for tertiary heating
  • Load profiles for residential domestic hot water
  • Load profiles for tertiary domestic hot water

User inputs

User should provide the following parameters:

  • Residential heating factor: The residential heating demand is multiplied by this factor.
  • Tertiary heating factor: The tertiary heating demand is multiplied by this factor.
  • Residential hot water supply factor: The residential hot water demand is multiplied by this factor.
  • Tertiary hot water supply factor: The tertiary hot water demand is multiplied by this factor.

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Output

Indicators

  • Heat demand by industry: Yearly heat demand by industry in the selected area.
  • Heat demand by residential heating: Yearly heat required for residential heating in the selected area.
  • Heat demand by residential warm water supply: Yearly heat required for residential warm water supply in the selected area.
  • Heat demand by tertiary sector heating: Yearly heat required for tertiary sector heating in the selected area.
  • Heat demand by tertiary sector warm water supply: Yearly heat required for tertiary sector warm water supply in the selected area.
  • Total head demand: Yearly total heat required in the selected area.

Graphics

  • Heat demand profiles: A graphic showing above listed indicators over the year.

The x-axis represents the time and the y-axis shows the power in MW. It can be helpful to hide certain sectors to better see others. This can be done by double-clicking on the legend.

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Method

Overview

Corresponding load profiles are assigned to industrial sites, residential and tertiary buildings in the user selection.

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Details

Residential warm water supply

Based on the gross floor area of residential buildings and their NUTS 0 ID, the energy used for warm water supply is computed with the following list. Using the NUTS 2 ID of the selected area, a load profile is assigned. The residential hot water supply is multiplied by the residential hot water supply factor in case the user wants to adjust the value.

Specific energy per area for warm water supply in residential buildings in different countries

Nuts0 ID Warm water supply in kWh/m²/a
AT 21.67
BE 31.95
BG 12.93
HR 21.38
CY 8.80
CZ 22.83
DK 9.64
EE 14.35
FI 10.15
FR 9.66
DE 8.27
EL 12.51
HU 13.66
IE 15.91
IT 14.01
LV 15.71
LT 13.36
LU 8.29
MT 10.99
NL 8.91
PL 10.00
PT 9.48
RO 11.48
SK 21.51
SI 21.74
ES 23.34
SE 13.54
UK 49.03

Residential heating

The heat demand density for the residential sector is used. Since this data set already contains the energy used for warm water, the previous computed warm water energy is subtracted from it. Based on the NUTS 2 ID a residential heating profile is assigned for each tile of the heat density in the user selection. The residential heating is multiplied by the residential heating factor in case the user wants to adjust the value.

Tertiary warm water supply

Similar to the residential warm water supply the energy needed is computed with a table. With the NUTS 2 ID of a specific area, a load profile is assigned. The tertiary warm water supply is multiplied with the tertiary hot water supply factor in case the user wants to adjust the value.

Specific energy per area for warm water supply in tertiary buildings in different countries

Nuts0 ID Warm water supply in kWh/m²/a
AT 6.57
BE 13.88
BG 15.88
HR 9.42
CY 6.26
CZ 9.18
DK 8.03
EE 14.13
FI 10.52
FR 9.57
DE 3.05
EL 6.99
HU 9.51
IE 10.87
IT 5.62
LV 7.16
LT 10.46
LU 7.20
MT 10.45
NL 6.89
PL 9.55
PT 21.47
RO 13.85
SK 8.49
SI 27.73
ES 12.44
SE 19.62
UK 13.45

Tertiary heating

The tertiary heating is computed similar to the residential heating. The tertiary heating is multiplied by the tertiary heating factor in case the user wants to adjust the value.

Industrial heat demand

The heat demand by industry is looked up the industrial database and based on the NUTS 0 ID and the sub-sector a load profile is assigned.

Summation

The five resulting profiles are aggregated in an absolute way to obtain the final profile.

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Implementation

Load profiles

The mentioned load profiles consist of 8760 points which represent the load for every hour of the 365 days. Further information about the load profiles can be found here. All load profiles are normalized so that the integral is equal to 1.

Industrial sites

The heat sources are taken from the industrial database. Based on their excess heat, NUTS 0 ID and industrial sector a load profile covering every hour of the year is created for each site.

Heat densities

The heat demand density of the residential and non-residential sectors are raster files that can be found here.

Gross floor areas

The gross floor area residential and gross floor area non-residential are raster files which can be found here and here.

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GitHub repository of this calculation module

Here you get the bleeding-edge development for this calculation module.

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Sample run

Sample run in DK05.

Sample run in DK05. Only the selected blue area is considered. Graphic showing the heat demand of the different sectors over the year.

Data from this graphic can be exported by pressing the "EXPORT GRAPHS" button.

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How to cite

Ali Aydemir and David Schilling, in Hotmaps Wiki, CM Heat load profiles (September 2020)

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Authors and reviewers

This page was written by Ali Aydemir and David Schilling (Fraunhofer ISI).

☑ This page was reviewed by Tobias Fleiter (Fraunhofer ISI).

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License

Copyright © 2016-2020: Ali Aydemir and David Schilling

Creative Commons Attribution 4.0 International License

This work is licensed under a Creative Commons CC BY 4.0 International License.

SPDX-License-Identifier: CC-BY-4.0

License-Text: https://spdx.org/licenses/CC-BY-4.0.html

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Acknowledgement

We would like to convey our deepest appreciation to the Horizon 2020 Hotmaps Project (Grant Agreement number 723677), which provided the funding to carry out the present investigation.

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