A Python module do simple modelling in the field of solar energy
A Python module to do simple modelling in the field of solar energy. The code is being developped by Marc van der Sluys of the department of astrophysics of the Radboud University Nijmegen, the Netherlands and the department of Sustainable energy of the HAN University of Applied Sciences in Arnhem, the Netherlands.
This package can be installed using
pip install solarenergy. This should automatically install the
soltrack if they haven't been installed already. If you are
installing by hand, ensure that these packages are installed as well.
import solarenergy as se import numpy as np r2d = 180/np.pi # Multiplication factor to convert radians to degrees d2r = 1/r2d # Multiplication factor to convert degrees to radians # Location of my solar panels: geoLon = 5*d2r # Geographic longitude (>0 for eastern hemisphere; ° -> rad) geoLat = 52*d2r # Geographic latitude (>0 for northern hemisphere; ° -> rad) # Orientation of my solar panels: spAz = -2*d2r # Azimuth ('wind direction') of my panels are facing. Note: South=0, W=90° (pi/2 rad) in the northern hemisphere! (rad) spIncl = 28*d2r # Inclination of my panels w.r.t. the horizontal (rad) # An hour past noon local time on 1 March 2020: myTZ = 'Europe/Amsterdam' year = 2020 month = 3 day = 1 hour = 13 # Compute Sun position (uses SolTrack behind the scenes): sunAz,sunAlt,sunDist = se.computeSunPos(geoLon,geoLat, year,month,day, hour, timezone=myTZ) AM = se.airmass(sunAlt) # Air mass for this Sun altitude extFac = se.extinctionFactor(AM) # Extinction factor at sea level for this airmass cosTheta = se.cosAngleSunPanels(spAz,spIncl, sunAz,sunAlt) # cos of the angle with which Sun hits my panels solConst = 1361.5 / sunDist**2 # Solar constant, scaled with solar distance DNI = solConst / extFac # DNI for a clear sky dirRad = DNI * cosTheta # Insolation of direct sunlight on my panels # Print input and output: print("Location: %0.3lf E, %0.3lf N" % (geoLon*r2d, geoLat*r2d)) print("Date: %4d-%2.2d-%2.2d" % (year, month, day)) print("Time: %2d:00" % (hour)) print() print("Sun azimuth: %7.3lf°" % (sunAz*r2d)) print("Sun altitude: %7.3lf°" % (sunAlt*r2d)) print("Sun distance: %7.4lf AU" % (sunDist)) print() print("Air mass: %7.3lf" % (AM)) print("Extinction factor: %7.3lf" % (extFac)) print("Sun-panels angle: %7.1lf°" % (np.arccos(cosTheta)*r2d)) print() print("Solar constant: %7.1lf W/m²" % (solConst)) print("DNI: %7.1lf W/m²" % (DNI)) print("Direct insolation: %7.1lf W/m²" % (dirRad)) print()
Author and licence
Release history Release notifications | RSS feed
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
|Filename, size||File type||Python version||Upload date||Hashes|
|Filename, size solarenergy-0.0.11-py3-none-any.whl (23.6 kB)||File type Wheel||Python version py3||Upload date||Hashes View|
|Filename, size solarenergy-0.0.11.tar.gz (10.2 kB)||File type Source||Python version None||Upload date||Hashes View|
Hashes for solarenergy-0.0.11-py3-none-any.whl