DOI: 10.5281/zenodo.10018552
title: Pilot output of a hybrid micro-CPV solar panels with integrated micro-tracking and diffuse capture

description: Dataset of power output of four final generation Insolight/Hiperion modules on the rooftop of the Instituto de Energía Solar - Universidad Politécnica de Madrid.  These are micro CPV modules using integrated planar tracking and hybrid diffuse collection. The modules have a four terminal output: the "CPV" output corresponds to triple junction micro solar cells under ~100X concentration using integrated planar tracking and the "SI" output corresponds to an array of IBC silicon solar cells which ocupies the rest of hte backplane area and harvests light not captured by the concentrator. See References for more information
Monitoring campaign:

Location: 40.453°N, -3.727°E. Instituto de Energía Solar, Universidad Politécnica de Madrid. 28040 Madrid, Spain.
Starting date: 19 Oct 2022
End date: 1 Dec 2022
Measurement setup:

The four modules included in this data set were mounted on an 8 module pilot array.
The four modules have the following ID numbers: 195, 196, 197, and 198
The modules were mounted at a fixed mounting angle: Due South, Slope Angle = 30°
All modules were connected to two Enphase IQ7+ microinverters (one per output) to place them at MPPT.
CPV and SI voltages and currents wer measured with the Enphase monitoring gateway (Envoy)
NOTE: Some shading on array in mornings due to time of year.
Description of data file:

Data files format: single comma-separated text file; headers in first row; all of the following parameters; order below is the same as order in file
Measurement time: the vector of times represents the times at which the Insolight module firmware sampled the current values of the III-V and Si outputs (measured simultaneously).

Date Time (dd/mmm/yyyy HH:MM:SS): time in local civil time (data set begins in CEST / UTC+2 but on 30-Oct-22 transitions to CET / UCT+1 with the end of central european summer time.
Measured meteorological data: these values are measured directly by the IES meteorological station with 1-minute resolution. They have been re-interpolated to match the measurement times.

DNI (W/m2): direct normal irradiance as measured by a Normal Incidence Pyrheliometer from Eppley on a solar tracker. Spectral Range: 250-3000 nm. Field of view: 5°
DNI_Top (W/m2): equivalent direct normal irradiance as measured by a top component cell of a lattice-matched III-V triple-junction cell in the ICU-3J35 Triband Spectro-heliometer from Solar Added Value on a solar tracker. Spectral range: 300 - 680 nm. Field of view: 5.7º
DNI_Mid (W/m2): equivalent direct normal irradiance as measured by a middle component cell of a lattice-matched III-V triple-junction cell in the ICU-3J35 Triband Spectro-heliometer from Solar Added Value on a solar tracker. Spectral range: 680 - 900 nm. Field of view: 5.7º
GNI (W/m2): global normal irradiance at the aperture plane as measured with a pyranometer on a solar tracker. Spectral range: 305 – 2800 nm.
T_Amb (°C): ambient temperature
Wind Speed (m/s): wind speed
Wind Dir. (m/s): wind direction
Processed meteorological data: these values are calculated from the above meteorological data and provided for convenience

DII (W/m2): Direct Inclined (plane of array) Irradiance corresponding to the module slope angle has been calculated using the sun's known declination and hour angle from the time.
GII (W/m2): The Global Inclined (plane of array) Irradiance is calculated by first calculating the DII(41°), that is the DII corresponding to the G(41°) measurement, and finding the Diffuse Inclined Irradiance Diff(41°) = G(41°) – DII(41°). It is assumed that the Diffuse Inclined Irradiance at 41° and 30° is equal, so GII = DII + Diff(41°).
SMR_Top_Mid (n.d.): "Spectral Matching Ratio". This is the ratio between DNI_Top and DNI_Mid. A value of unity indicates a spectrum that is equivalent to AM1.5D with regards to the energy balance between top and middle subcells.
Measured module data: The MP voltage and current are provided for each output of each module. XXX indicates ID number of module. The power in watts may be found by multiplying these values

V_CPV_XXX(V):
V_SI_XXXi (V)
I_CPV_XXX(A):
I_SI_XXXi (A)
description: This work has received funding from the European Union's Horizon 2020 research and innovation program under Grant Agreement 857775 (Project HIPERION)