Clean up & minor upgrades to notebook

Author: echedey-ls

docs/tutorials/spectral_mismatch_modifiers.ipynb

@@ -5,7 +5,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Spectral mismatch Modifiers\n",
+    "# Spectral Mismatch Modifiers\n",
     "Learn to use spectral mismatch modifiers with this notebook!\n",
     "Feel free to add other models, be sure to update the index and give you credit ;)\n",
     "\n",
@@ -64,7 +64,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "First step is get to the effective irradiance. For simplicity, we will copy the procedure explained in the tutorial ``tmy_to_power.ipynb``. Please refer to it to get a more in depth explanation."
+    "First step is get to the effective irradiance. For simplicity, we will copy the\n",
+    "procedure explained in the tutorial ``tmy_to_power.ipynb`` to obtain it.\n",
+    "Please refer to it to get a more in depth explanation."
    ]
   },
   {
@@ -119,35 +121,16 @@
     "poa_irrad = pvlib.irradiance.poa_components(aoi,\n",
     "                                            weather_data['dni'],\n",
     "                                            poa_sky_diffuse,\n",
-    "                                            poa_ground_diffuse)\n",
-    "\n",
-    "# Following part will be needed later\n",
-    "thermal_params = pvlib.temperature.TEMPERATURE_MODEL_PARAMETERS['sapm']['open_rack_glass_polymer']\n",
-    "pvtemps = pvlib.temperature.sapm_cell(poa_irrad['poa_global'],\n",
-    "                                      weather_data['temp_air'],\n",
-    "                                      weather_data['wind_speed'],\n",
-    "                                      **thermal_params)\n",
-    "\n",
-    "# Note that we use the CEC Module provided for the singlediode subsection\n",
-    "cec_modules = pvlib.pvsystem.retrieve_sam(name='CECMod')\n",
-    "cec_module = cec_modules['Canadian_Solar_Inc__CS5P_220M']"
-   ]
-  },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Here comes the modifier. Let's calculate it and examine the introduced\n",
-    "difference.\n"
+    "                                            poa_ground_diffuse)"
    ]
   },
   {
    "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "That was a lot, yeah. But don't worry, now we can find the effective irradiance, the mismatch modifier (with the airmass and clearness index)"
+    "Here comes the modifier. Let's calculate it with the airmass and clearness\n",
+    "index."
    ]
   },
   {
@@ -157,13 +140,13 @@
    "outputs": [],
    "source": [
     "# First, let's find the airmass and the clearness index\n",
-    "# Little caution: default values for this model were fitted obtaining the airmass through the kasten1966 method, not used by default\n",
+    "# Little caution: default values for this model were fitted obtaining the\n",
+    "# airmass through the kasten1966 method, not used by default\n",
     "airmass = site.get_airmass(solar_position=solar_pos, model='kasten1966')\n",
-    "clearness_index = pvlib.irradiance.clearness_index(ghi=weather_data['ghi'],\n",
-    "                                             solar_zenith=solar_pos['zenith'],\n",
-    "                                             extra_radiation=extra_rad)\n",
-    "# Check module is m-Si (monocrystalline silicon)\n",
-    "print('Module type is: ' + cec_module['Technology'])\n",
+    "clearness_index = \\\n",
+    "    pvlib.irradiance.clearness_index(ghi=weather_data['ghi'],\n",
+    "                                     solar_zenith=solar_pos['zenith'],\n",
+    "                                     extra_radiation=extra_rad)\n",
     "\n",
     "# Get the spectral mismatch modifiers\n",
     "spectral_modifiers = \\\n",
@@ -181,7 +164,8 @@
     "multiplication.\n",
     "\n",
     "Note, however, that neither this does modify ``poa_global`` nor\n",
-    "``poa_diffuse``, so we should update."
+    "``poa_diffuse``, so we should update the dataframe afterwards, again with\n",
+    "``irradiance.poa_components``."
    ]
   },
   {
@@ -204,7 +188,8 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Finally, let's plot the raw vs modified global irradiances, and the difference."
+    "Finally, let's plot the incident vs modified global irradiances, and their\n",
+    "difference."
    ]
   },
   {
@@ -218,8 +203,8 @@
     "poa_irrad['poa_global'].plot()\n",
     "poa_irrad_modified['poa_global'].plot()\n",
     "poa_irrad_global_diff.plot()\n",
-    "plt.legend(['Original', 'Modified', 'Difference'])\n",
-    "plt.ylabel('Irradiance [W/m²]')\n",
+    "plt.legend(['Incident', 'Modified', 'Difference'])\n",
+    "plt.ylabel('POA Global irradiance [W/m²]')\n",
     "plt.show()"
    ]
   }