SPIS Toolbox - Solar Irradiation - Revision history

Ranisha at 13:42, 4 September 2018

2018-09-04T13:42:43Z

Ranisha at 13:27, 4 September 2018

2018-09-04T13:27:32Z

Ranisha at 12:09, 4 September 2018

2018-09-04T12:09:05Z

Ranisha at 12:08, 4 September 2018

2018-09-04T12:08:34Z

Ranisha: Created page with "{{SPIS Market}} {| cellpadding="1" |- | {{Back to SPIS Toolbox 2}} | | {{Back to Market}} | | style="width: 150px; background-color: rgb(222, 226, 192);" |
2018-09-04T11:25:24Z

Created page with "{{SPIS Market}} {| cellpadding="1" |- | {{Back to SPIS Toolbox 2}} | | {{Back to Market}} | | style="width: 150px; background-color: rgb(222, 226, 192);" | <span style="colo..."

New page
{{SPIS Market}}
{| cellpadding="1"
|-
| {{Back to SPIS Toolbox 2}}
|
| {{Back to Market}}
|
| style="width: 150px; background-color: rgb(222, 226, 192);" | '''[[SPIS_Toolbox_-_Evaluate_the_Business_Environment|►Go to the Next Chapter]]'''
|}

=== '''Solar Irradiation''' ===
[[File:Global Horizontal Solar Irradiation.png|thumb|right|180px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizonal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere. 

Solar radiation can be categorized into four classes: levels less than 2.6kWh/m2 are classified as low solar radiation while solar irradiance between 2.6-3kWh/m2 is moderate solar radiation; irradiance of between 3-4kWh/m2 is high solar radiation and irradiance higher than 4kWh/m2 is very high radiation. It is important to note that the classification is used for purposes of distinguishing the efficiency of systems as advances in solar technologies have allowed for the set-up of systems in almost all areas that receive radiation. In areas of low radiation, system efficiency will be compromised due to lower panel output. Additionally, set up of solar panels in regions of low solar radiation could lead to high set up costs resulting from the use of a greater number of panels to generate the same output as regions with higher insolation. It is therefore noted that, because of technological advances, solar irradiation is more of an economic consideration than a question of technical feasibility.

==== '''Outcome/Product''' ====

Classification of regions based on GHI or PV system output 
Identification of optimal sites for SPIS

==== '''Data Requirement''' ====

Global horizontal irradiation data

==== '''People/Stakeholders''' ====

Solar PV system installers 
Meteorological service providers 
Solar equipment suppliers

==== '''Important Issues''' ====

*There are various other factors that affect the functionality of a PV system in addition to solar irradiance. Two of the most important include temperature and aspect which are further expounded on in the ambient temperature and topography sections of the module.
{{SPIS Reference}}

@@ Line 9: / Line 9: @@
 |}
-=== '''<span style="color:#879637;">Solar Irradiation</span>''' ===
+=== '''<span style="color:#879637;">2.2 Solar Irradiation</span>''' ===
 [[File:Global Horizontal Solar Irradiation.png|thumb|right|300px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
 Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizontal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere.<br/>

@@ Line 13: / Line 13: @@
 Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizontal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere.<br/>
-Solar radiation can be categorized into four classes: levels less than 2.6kWh/m2 are classified as low solar radiation while solar irradiance between 2.6-3kWh/m2 is moderate solar radiation; irradiance of between 3-4kWh/m2 is high solar radiation and irradiance higher than 4kWh/m2 is very high radiation. It is important to note that the classification is used for purposes of distinguishing the efficiency of systems as advances in solar technologies have allowed for the set-up of systems in almost all areas that receive radiation. In areas of low radiation, system efficiency will be compromised due to lower panel output. Additionally, set up of solar panels in regions of low solar radiation could lead to high set up costs resulting from the use of a greater number of panels to generate the same output as regions with higher insolation. It is therefore noted that, because of technological advances, solar irradiation is more of an economic consideration than a question of technical feasibility.
+Solar radiation can be categorized into four classes: levels less than 2.6 kWh/m2 are classified as low solar radiation while solar irradiance between 2.6-3 kWh/m2 is moderate solar radiation; irradiance of between 3-4 kWh/m2 is high solar radiation and irradiance higher than 4 kWh/m2 is very high radiation. It is important to note that the classification is used for purposes of distinguishing the efficiency of systems as advances in solar technologies have allowed for the set-up of systems in almost all areas that receive radiation. In areas of low radiation, system efficiency will be compromised due to lower panel output. Additionally, set up of solar panels in regions of low solar radiation could lead to high set up costs resulting from the use of a greater number of panels to generate the same output as regions with higher insolation. It is therefore noted that, because of technological advances, solar irradiation is more of an economic consideration than a question of technical feasibility.
 ==== '''<span style="color:#879637;">Outcome/Product</span>''' ====

@@ Line 10: / Line 10: @@
 === '''<span style="color:#879637;">Solar Irradiation</span>''' ===
-[[File:Global Horizontal Solar Irradiation.png|thumb|right|200px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
+[[File:Global Horizontal Solar Irradiation.png|thumb|right|300px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
 Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizontal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere.<br/>

@@ Line 6: / Line 6: @@
 | {{Back to Market}}
+|
-| style="width: 150px; background-color: rgb(222, 226, 192);" | <span style="color: rgb(0, 0, 0);"><span style="font-size: 90%;">'''[[SPIS_Toolbox_-_Evaluate_the_Business_Environment|►Go to the Next Chapter]]'''</span></span>
+| style="width: 150px; background-color: rgb(222, 226, 192);" | <span style="color: rgb(0, 0, 0);"><span style="font-size: 90%;">'''[[SPIS_Toolbox_-_Water_Availability|►Go to the Next Chapter]]'''</span></span>
 |}
 === '''<span style="color:#879637;">Solar Irradiation</span>''' ===
-[[File:Global Horizontal Solar Irradiation.png|thumb|right|180px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
+[[File:Global Horizontal Solar Irradiation.png|thumb|right|200px|Global Horizontal Solar Irradiation (Source: World Bank Group, 2018)]]
-Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizonal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere.<br/>
+Solar irradiation is a key factor in gauging the market potential of SPIS within a region. It refers to the amount of energy incident per unit area on the earth’s surface in units of watts hours per square meter. PV systems use Global Horizontal Irradiation (GHI) which is the total amount of radiation received from above by a horizontal surface. GHI consists of both Direct Normal Irradiation (DNI) – the amount of solar radiation received per unit area by a surface that is always held perpendicular to the incoming rays and; Diffuse Horizontal Irradiation (DHI) – the amount of radiation received per unit area by a surface that does not arrive on a direct path from the sun, but has been scattered by molecules and particles in the atmosphere.<br/>
 Solar radiation can be categorized into four classes: levels less than 2.6kWh/m2 are classified as low solar radiation while solar irradiance between 2.6-3kWh/m2 is moderate solar radiation; irradiance of between 3-4kWh/m2 is high solar radiation and irradiance higher than 4kWh/m2 is very high radiation. It is important to note that the classification is used for purposes of distinguishing the efficiency of systems as advances in solar technologies have allowed for the set-up of systems in almost all areas that receive radiation. In areas of low radiation, system efficiency will be compromised due to lower panel output. Additionally, set up of solar panels in regions of low solar radiation could lead to high set up costs resulting from the use of a greater number of panels to generate the same output as regions with higher insolation. It is therefore noted that, because of technological advances, solar irradiation is more of an economic consideration than a question of technical feasibility.
@@ Line 34: / Line 34: @@
 *There are various other factors that affect the functionality of a PV system in addition to solar irradiance. Two of the most important include temperature and aspect which are further expounded on in the ambient temperature and topography sections of the module.
 {{SPIS Reference}}