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Python wrappers around NREL SOLPOS and SPECTRL2

Project Description

SolarUtils is set of Python wrappers around the publicly available NREL SOLPOS and SPECTRL2 C-language computer programs that calculate solar position and spectral decomposition. Please read the NREL disclaimer and license. Usage of this software implies acceptance of the terms.

Installation

Use pip to install SolarUtils from the PyPI:

pip install SolarUtils

You can also download a source distribution from PyPI or clone the repository and use Python distutils:

python setup.py install

Requirements

SolarUtils has no requirements for usage however for installation, testing and to build the documentaiton you will need the following pacakges:

  • NumPy
  • PyTest
  • Sphinx

Usage

See SOLPOS Documentation and SPECTRL2 Documentation for more detail.

Examples

>>> from solar_utils import *
>>> import pandas as pd
>>> location = [35.56836, -119.2022, -8.0]
>>> datetime = [2013, 6, 5, 12, 31, 0]
>>> weather = [1015.62055, 40.0]
>>> (angles, airmass) = solposAM(location, datetime, weather)
>>> zenith, azimuth = angles
>>> zenith
15.074043273925781
>>> azimuth
213.29042053222656]
>>> am, amp = airmass
>>> am
1.0352272987365723
>>> amp
1.0379053354263306]
>>> units = 1
>>> location = [33.65, -84.43, -5.0]
>>> datetime = [1999, 7, 22, 9, 45, 37]
>>> weather = [1006.0, 27.0]
>>> orientation = [33.65, 135.0]
>>> atmospheric_conditions = [1.14, 0.65, -1.0, 0.2, 1.36]
>>> albedo = [0.3, 0.7, 0.8, 1.3, 2.5, 4.0] + ([0.2] * 6)
>>> specdif, specdir, specetr, specglo, specx = spectrl2(
...     units, location, datetime, weather, orientation,
...     atmospheric_conditions, albedo
... )
>>> spec = pd.DataFrame(
...     {'DIF': specdif, 'DIR': specdir, 'ETR': specetr, 'GLO': specglo},
...     index=specx
... )
>>> f = spec.plot()
>>> f.set_title('Solar Spectrum Example')
>>> f.set_xlabel('Wavelength, $\lambda [\mu m]$')
>>> f.set_ylabel('Spectral Irradiance, $I_{\lambda} [W/m^2/\mu m]$')
>>> f.grid(True)
>>> f.figure.show()
Release History

Release History

This version
History Node

0.2.2

History Node

0.2.1

Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
SolarUtils-0.2.2a-cp27-cp27m-win32.whl (38.4 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 14, 2016
SolarUtils-0.2.2a-cp34-cp34m-win_amd64.whl (39.1 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 14, 2016
SolarUtils-0.2.2a-cp35-cp35m-win_amd64.whl (44.6 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 14, 2016
SolarUtils-0.2.2-cp27-cp27m-macosx_10_11_intel.whl (239.4 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 14, 2016
SolarUtils-0.2.2-cp27-cp27m-win_amd64.whl (242.6 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 14, 2016
SolarUtils-0.2.2.tar.gz (302.6 kB) Copy SHA256 Checksum SHA256 Source Jul 14, 2016
SolarUtils-0.2.2.zip (406.1 kB) Copy SHA256 Checksum SHA256 Source Jul 14, 2016

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