UK Domestic Appliance Level Electricity (UK-DALE)
2015 Edition

There are two sets of data:

The preliminary versions of this data are also available in the directory UK-DALE

The high speed (16kHz) aggregated whole house current / voltage data is extended in time for one house by UK-DALE-2017-16kHz
The disaggregated appliance power and aggregated whole house power data is included in and extended by UK-DALE-FULL-disaggregated. UK-DALE-FULL-disaggregated makes all the available disaggregated data available in zip files of plain text or HDF5 format data.

High speed (16 kHz) aggregated whole house current/voltage

Field Description
Title UK Domestic Appliance Level Electricity (UK-DALE) - High speed (16 kHz) aggregated whole house current/voltage
Subject UK Domestic Appliance Level Electricity (UK-DALE) - High speed (16 kHz) aggregated household time series data
Description High speed (16 kHz) power meter data for 3 houses for which disaggregated appliance level data at 6s logging interval is also available, making this a useful data set for testing appliance disaggregation algorithms.
Type Dataset
Source Imperial College London PhD Research Project
Relation Data gathered contemporaenously with: Disaggregated (6s) appliance power and aggregated (1s) whole house power
See publication in Nature Scientific Data 2:150007 DOI:10.1038/sdata.2015.7 arXiv:1404.0284 (201)
Coverage Southern England
Timespan: 2012-2015
Creator Kelly, Jack, at Imperial College London
Publisher UK Energy Research Centre Energy Data Centre (UKERC-EDC)
Contributor None
Rights Creative Commons Attribution 4.0 International (CC BY 4.0)
Date 2015
Format FLAC
Identifier doi: 10.5286/UKERC.EDC.000002
Language English (UK)
Data location http://data.ukedc.rl.ac.uk/simplebrowse/edc/efficiency/residential/EnergyConsumption/Domestic/UK-DALE-2015/UK-DALE-disaggregated
Other information

The (V, I) characteristic in the .FLAC files is uncalibrated. Calibration files are provided in the top-level directory for the data set. The recommended procedure for processing the data is to convert from FLAC (a lossless audio compression) to WAV using an audio editing package such as sox or Matlab's audioread function. Next, convert from the [-1,1] range of values in the WAV file to volts and amps, using the calibration.cfg file for the house in question. This file specifies an amps_per_adc_step parameter and a volts_per_adc_step parameter; to calculate volts from the WAV files, use the formula: volts_per_adc_step * 231 ADC steps * value_from_wav_file, and similarly for the current. (The data recorder uses 32-bit integers to record the waveforms as an audio signal; hence there are 232 ADC steps for the full range from [-1,1] and 231 ADC steps for half the range from [0,1] or [-1,0].) The 'phase_difference' parameter in the calibration file can safely be ignored since the measurement hardware introduces no significant phase shift.
Additional detailed metadata relating to the houses and their meters is available at http://data.ukedc.rl.ac.uk/simplebrowse/edc/efficiency/residential/EnergyConsumption/Domestic/UK-DALE-2015/UK-DALE-disaggregated/metadata

Data type None
Parameter names Uncalibrated voltage
Uncalibrated current
IEA category ENERGY EFFICIENCY: Residential and Commercial

Disaggregated (6s) appliance power and aggregated (1s) whole house power

Field Description
Title UK Domestic Appliance Level Electricity (UK-DALE) - Disaggregated (6s) appliance power and aggregated (1s) whole house power
Subject UK Domestic Appliance Level Electricity (UK-DALE) - Disaggregated power demand from 5 UK domestic houses at 6s and aggregate power at 6s in all houses and additionally at 1s in 3 houses.
Description Appliance-by-appliance and whole-home power demand for 5 UK homes recorded approximately once every 6s. For 3 of the homes, whole-home data was also recorded at 1s and 16kHz (see separate data set listed under Relation).
Data is stored in individual directories for each house. Each appliance has a separate time series file channel_nn.dat and most have a channel_nn_button_press.dat file indicating switching events (see Other Information).
Type Dataset
Source Imperial College London PhD Research Project
Relation Data gathered contemporaenously with: High speed (16 kHz) aggregated whole house current/voltage
See publication in Nature Scientific Data 2:150007 DOI:10.1038/sdata.2015.7 arXiv:1404.0284 (201)
Coverage Southern England
Timespan: 2012-2015
Creator Kelly, Jack
Publisher UK Energy Research Centre Energy Data Centre (UKERC-EDC)
Contributor None
Rights Creative Commons Attribution 4.0 International (CC BY 4.0)
Date 2015
Format CSV
Identifier doi: 10.5286/UKERC.EDC.000001
Language English (UK)
Data location http://data.ukedc.rl.ac.uk/simplebrowse/edc/efficiency/residential/EnergyConsumption/Domestic/UK-DALE-2015/UK-DALE-disaggregated
Other information

House 1 appliance channel numbers:
1 aggregate
2 boiler
3 solar_thermal_pump
4 laptop
5 washing_machine
6 dishwasher
7 tv
8 kitchen_lights
9 htpc
10 kettle
11 toaster
12 fridge
13 microwave
14 lcd_office
15 hifi_office
16 breadmaker
17 amp_livingroom
18 adsl_router
19 livingroom_s_lamp
20 soldering_iron
21 gigE_&_USBhub
22 hoover
23 kitchen_dt_lamp
24 bedroom_ds_lamp
25 lighting_circuit
26 livingroom_s_lamp2
27 iPad_charger
28 subwoofer_livingroom
29 livingroom_lamp_tv
30 DAB_radio_livingroom
31 kitchen_lamp2
32 kitchen_phone&stereo
33 utilityrm_lamp
34 samsung_charger
35 bedroom_d_lamp
36 coffee_machine
37 kitchen_radio
38 bedroom_chargers
39 hair_dryer
40 straighteners
41 iron
42 gas_oven
43 data_logger_pc
44 childs_table_lamp
45 childs_ds_lamp
46 baby_monitor_tx
47 battery_charger
48 office_lamp1
49 office_lamp2
50 office_lamp3
51 office_pc
52 office_fan
53 LED_printer

House 2 appliance channel numbers:
1 aggregate
2 laptop
3 monitor
4 speakers
5 server
6 router
7 server_hdd
8 kettle
9 rice_cooker
10 running_machine
11 laptop2
12 washing_machine
13 dish_washer
14 fridge
15 microwave
16 toaster
17 playstation
18 modem
19 cooker
20 modem_router

House 3 appliance channel numbers:
1 aggregate
2 kettle
3 electric_heater
4 laptop
5 projector

House 4 appliance channel numbers:
1 aggregate
2 tv_dvd_digibox_lamp
3 kettle_radio
4 gas_boiler
5 freezer
6 washing_machine_microwave_breadmaker

House 5 appliance channel numbers:
1 aggregate
2 stereo_speakers_bedroom
3 desktop computer
4 hairdryer
5 primary_tv
6 24_inch_lcd_bedroom
7 treadmill
8 network_attached_storage
9 core2_server
10 24_inch_lcd
11 PS4
12 steam_iron
13 nespresso_pixie
14 atom_pc
15 toaster
16 home_theatre_amp
17 sky_hd_box
18 kettle
19 fridge_freezer
20 oven
21 electric_hob
22 dishwasher
23 microwave
24 washer_dryer
25 vacuum_cleaner

Additional detailed metadata (using the NILM Metadata Schema) relating to the houses and their meters is available at
http://data.ukedc.rl.ac.uk/simplebrowse/edc/efficiency/residential/EnergyConsumption/Domestic/UK-DALE-2015/UK-DALE-disaggregated/metadata

Individual appliance monitors have a push-button switch to allow users to turn the connected appliance on and off. The activity of this switch is recorded in a channel_<X>_button_press.dat file. If the switch has just been toggled on then a `1' is recorded. If the switch has just been toggled off then a `0' is recorded. The motivation behind logging switch press events is that these provide (imperfect) room occupancy information. Switch on events should be a perfectly clean recording (i.e. the only possible reason for an on-switch event appearing in the data is that the user pressed the switch). Unfortunately, off-switch events may include false positives. Occasionally IAMs turn off spontaneously (an event which is impossible to distinguish from a genuine button press). Also, if power is lost and returned to the IAM within 12 seconds then this will be logged as an off-switch event. If the power is off for more than 12 seconds then the system assumes that the IAM was deliberately unplugged and hence the system will switch the IAM to its previous power state when it reappears; this automatic switch event is not recorded

Data type Time series
Parameter names Timestamp (UNIX epoch = number of seconds since 1970/01/01 00:00 UTC)
Appliance power consumption or Aggregate household power (N.B. some meters record active power (W) and some meters record apparent power (VA); see the meter_devices.yaml file for full details)
IEA category ENERGY EFFICIENCY: Residential and Commercial