# Informations on the columns of the file «PV_DrahiX_modules_Meteo_SIRTA_conso_temp_v5_XX.csv»

## Metadata

- **Creation date**: 07/2025
- **Contact**: Jordi Badosa [e4c_datahub@ip-paris.fr](mailto:e4c_datahub@ip-paris.fr)

## Description

This multivariable dataset contains measurements at 15-minute intervals over more than three years. The measured data includes meteorological observations (air temperature, wind, rain, precipitation) and radiation fluxes (global, direct, and diffuse solar irradiance as well as longwave irradiance) from the SIRTA atmospheric observatory, electricity power measurements for the photovoltaic generation (total, in AC and in DC, and for each of the 53 individual PV modules of the installation) and for the consumption of the Drahi-X Novation Center tertiary building on the Campus of École Polytechnique in Palaiseau, France. Additionally, the file contains measurements of disaggregated consumption (lights, plugs, heating/cooling, ventilation, water heater, etc.) and the ambient temperature of all offices for two electric zones of this building. All measurements are performed on the campus of Institut Polytechnique de Paris.

## Objectifs du projet

Given the amount and types of data in the file, it can be used for multiple studies and analyses such as consumption forecasting, algorithm research for energy management systems, electric flexibility, temperature comfort, photovoltaic performance characterisation, photovoltaic modelling, and forecasting, among others.

## Méthodologie

Data is averaged at 15-minute intervals from the native resolution, which is 1 minute for all SIRTA variables as well as electric consumption, 5 minutes for PV measurements, and 15 minutes for building temperatures.

## Columns information

- **datetime**: Date and time (in UTC). Each timestamp corresponds to the starting time for the 15-minute period.

### Meteorological measurements (SIRTA roof-top, laboratory building, 350 m west of Drahi-X Novation Center)

- AirTemp: Air temperature at 2 m above the ground (ºC)
- pres: Air pressure at 2 m above the ground (hPa)
- rain: Precipitation (mm)
- rh: Relative humidity at 2 m above the ground (%)
- wd: Wind direction at 10 m above the ground (º)
- ws: Wind speed at 10 m above the ground (m/s)

### Radiation data (SIRTA roof-top, laboratory building, 350 m west of Drahi-X Novation Center)

- Global_Solar_Flux: Solar Global Horizontal Irradiance GHI (W/m²)
- Diffuse_Solar_Flux: Solar Diffuse Horizontal Irradiance DHI (W/m²)
- Direct_Solar_Flux: Solar Direct Normal Irradiance DNI (W/m²)
- Downwelling_IR_Flux: Infrared longwave downwelling irradiance (W/m²)

### Time-related calculations

- SZA: Solar zenith angle (deg)
- SAA: Solar azimuth angle (deg)
- doy: Day of the year (from 1 to 366)

### Numerical Weather Predictions (Meteo-France ARPEGE, 00 UTC run)

Interpolated to 15 minutes from a native resolution of 1 hour for the grid point over SIRTA.

- airtemp_arpege: Air temperature at 2 m above the ground (ºC)
- ws_arpege: Wind speed at 10 m above the ground (m/s)
- ghi_arpege: Global Horizontal Irradiance (W/m²)

### Photovoltaic installation measurements (Drahi-X roof-top, capacity 16.7 kWp; SolarEdge platform, 5-minute native resolution)

- Module power at MPP: Maximum power point for each of the 52 panels (W)
- PAC: Total power generated by the PV installation (W)
- PDC: Total PV DC power (W)
- POA20: Irradiance on the plane of array (20º tilt) from a reference cell (W/m²)
- POA30: Irradiance on the plane of array (30º tilt) from a CM10 pyranometer (W/m²)
- Tp: Module temperature measured on the backface of panel #23 (Longi PERC, 310 Wc); reliable measurements start on 10 Sep 2020

### Radiative and temperature calculations

- DNI_TOA: DNI at the top of the atmosphere (W/m²)
- GHI_clear: GHI estimated under cloudless (clear-sky) conditions (W/m²)
- POAc20: Estimated irradiance on the plane of array (tilt 20º, orientation 2º west) using DNI, DHI, and GHI measurements with the Klucher model for diffuse contribution (W/m²)
- POAc30: Same as POAc20 but tilt = 30º
- Tp_sandia: Estimated module temperature using the Sandia model ([documentation](https://pvpmc.sandia.gov/modeling-steps/2-dc-module-iv/module-temperature/sandia-module-temperature-model/)) with a = -356, b = -0.075, EPOA = POA (measured), WS = ws, and Ta = AirTemp

### Electrical consumption (Drahi-X Novation Center, zones 1 and 2; egauge dataloggers)

- TGBT: Consumption of the whole building (kW)
- kw_ventilation_zone1: Ventilation consumption in zone 1 (kW)
- kw_lights_zone1: Lighting consumption in zone 1 (kW)
- kw_heatingcoolingtotal_zone1: Heating/cooling consumption in zone 1 (heat pumps and heaters) (kW)
- kw_heater_corridor1_zone1: Corridor heaters consumption in zone 1 (kW)
- kw_total_zone1: Total consumption in zone 1 (kW)
- plugs_zone2: Plug load consumption in zone 2 (kW)
- kw_heatingcoolingtotal_zone2: Heating/cooling consumption in zone 2 (heat pumps and heaters) (kW)
- kw_ventilation_zone2: Ventilation consumption in zone 2 (kW)
- kw_heaters_corridor_zone2: Corridor heaters consumption in zone 2 (kW)
- kw_lights_zone2: Lighting consumption in zone 2 (kW)
- kw_water_heater_zone2: Water heater consumption in zone 2 (kW)
- kw_heaters_toilets_zone2: Toilet heaters consumption in zone 2 (kW)
- kw_total_zone2: Total consumption in zone 2 (kW)

### Building management system (Accenta Effipilot)

- CT01 to CT39: Ambient temperature setpoints for all offices in zones 1 and 2 (ºC)
- T01 to T39: Ambient temperature measurements for all offices in zones 1 and 2 (ºC)

## Quality control

The file contains raw data with no quality control procedures applied.

## DOI

- [10.14768/211dff87-8187-447a-8086-1eb7c93a3688](https://doi.org/10.14768/211dff87-8187-447a-8086-1eb7c93a3688)

## Licence

- Data: CC BY-NC 4.0 ([licence](https://creativecommons.org/licenses/by-nc/4.0/))
- The use of data and code for AI training is forbidden without explicit authorization.

## Contact

- [e4c_datahub@ip-paris.fr](mailto:e4c_datahub@ip-paris.fr)

## Acknowledgements

This file has been built at the Energy4Climate Interdisciplinary Center (E4C) of IP Paris, which is in part supported by 3rd Programme d’Investissements d’Avenir [ANR-18-EUR-0006-02] and by the Foundation of École polytechnique (Chaire “Défis Technologiques pour une Énergie Responsable” financed by TotalEnergies). Part of the data was collected from equipment installed in the frame of the FEDER GPS (gridpower.eu) project.