Resource Assessment - Solar - Revision history

Johanna at 16:28, 24 July 2020

2020-07-24T16:28:52Z

Oliver Knight at 18:49, 24 June 2020

2020-06-24T18:49:53Z

Oliver Knight at 18:47, 24 June 2020

2020-06-24T18:47:35Z

Oliver Knight at 18:46, 24 June 2020

2020-06-24T18:46:44Z

Hector Alfaro: /* References */

2016-08-16T06:22:52Z

References

Hector Alfaro: /* Resource Assessment */

2016-08-16T06:21:09Z

Resource Assessment

Hector Alfaro: /* Conclusion */

2016-08-16T06:20:07Z

Conclusion

Hector Alfaro: /* Reference */

2016-08-16T06:19:02Z

Reference

Ranisha at 08:27, 15 August 2016

2016-08-15T08:27:12Z

Ranisha at 08:24, 15 August 2016

2016-08-15T08:24:16Z

@@ Line 12: / Line 12: @@
 A simple definition of resource assessment would be, '''the systematic collection of site-specific meteorological data for the purpose of accurately estimating annual energy production'''.
-Like the weather, solar radiation varies with location and time so it is important to measure factors such as solar radiation, wind speed, air temperature, etc. over a multi-year period to get the best estimate of average resource potential. It is also important to under the temporal characteristics of the resource, such as the monthly and hourly fluctuations, and the sub-hourly variations within one or more "spot" years. This data is particularly important in informing grid integration studies, to understand how the solar power will be absorbed into the national grid and&nbsp;<span style="background-color: rgb(255, 255, 255);">what additional balancing requirements may be needed.</span>
+Like the weather, solar radiation varies with location and time so it is important to measure factors such as solar radiation, wind speed, air temperature, etc. over a multi-year period to get the best estimate of average resource potential. It is also important to under the temporal characteristics of the resource, such as the monthly and hourly fluctuations, and the sub-hourly variations within one or more "spot" years. This data is particularly important in informing grid integration studies, to understand how the solar power will be absorbed into the national grid and&nbsp;<span style="background-color: rgb(255, 255, 255)">what additional balancing requirements may be needed.</span>
 <br/>
@@ Line 25: / Line 25: @@
 <br/>
-== <span style="background-color: initial;">Satellite Derived Data</span><br/> ==
+== <span style="background-color: initial">Satellite Derived Data</span><br/> ==
 There are multiple commercial providers of solar radiation data, all of whom use satellite derived data fed into proprietary models to generate time series for multiple variables, with increasingly high degrees of uncertainty. An authoritiative tool for obtaining such data is the [https://globalsolaratlas.info Global Solar Atlas], which is a free, web-based tool provided by the World Bank with funding from the Energy Sector Management Assistance Program (ESMAP). The data served by Global Solar Atlas is provided by the firm Solargis.
@@ Line 48: / Line 48: @@
 *[[Portal:Solar|Solar Portal on energypedia]]
 *[[Solar Pre-feasibility Report|Solar Pre-feasibility Report]]
-*[[TOR Solar Resource Assessment and Mapping|Terms of Reference]]<span style="background-color: rgb(255, 255, 255);">&nbsp;for solar (and/or wind) measurement campaigns</span>
+*[[TOR_ESMAP-World-Bank_Solar-Wind-Measurement-Campaign_Public_June2020|Terms of Reference]]<span style="background-color: rgb(255, 255, 255)">&nbsp;for solar (and/or wind) measurement campaigns</span>
 <br/>
 [[Category:Solar]]

@@ Line 10: / Line 10: @@
 The name might sound unfamiliar to some, but if one plans on investing in a solar plant either for a rooftop or for a farm, this is one of the pre-requisites to be considered. It is as important as assessing how much fuel is in one's car before travelling out. It is also important at the national or regional level, for governments and system planners to understand where the best resources are located, which areas to prioritize for development, and the need for related grid investments.
-A simple definition of resource assessment would be, '''the systematic collection of site-specific meteorological data for the purpose of accurately estimating annual energy production'''.<ref name="Renewable NRG Systems">Renewable NRG Systems</ref>
+A simple definition of resource assessment would be, '''the systematic collection of site-specific meteorological data for the purpose of accurately estimating annual energy production'''.
 Like the weather, solar radiation varies with location and time so it is important to measure factors such as solar radiation, wind speed, air temperature, etc. over a multi-year period to get the best estimate of average resource potential. It is also important to under the temporal characteristics of the resource, such as the monthly and hourly fluctuations, and the sub-hourly variations within one or more "spot" years. This data is particularly important in informing grid integration studies, to understand how the solar power will be absorbed into the national grid and&nbsp;<span style="background-color: rgb(255, 255, 255);">what additional balancing requirements may be needed.</span>
@@ Line 37: / Line 37: @@
 = Conclusion =
-To summarize, both the above methods have their pros and cons. However the importance of either cannot be discounted as both are complementary to each other. While the satellite derived data method provides global coverage with a reasonable quality, the ground mounted systems provide high-quality ground measurements for local conditions.<ref name="SolarGIS">SolarGIS</ref>
+To summarize, both the above methods have their pros and cons. However the importance of either cannot be discounted as both are complementary to each other. While the satellite derived data method provides global coverage with a reasonable quality, the ground mounted systems provide high-quality ground measurements for local conditions.
 While resource assessment is just the initial step, there are a list of other factors such as direction of solar PV panels, angle of mounting, losses which occur due to shading, wiring, soling, DC/AC conversion, etc. which play a key role in optimizing electricity yield of a solar plant. However as these are mainly system specific factors, they are rated after resource assessment.
@@ Line 51: / Line 51: @@
 <br/>
 [[Category:Solar]]

@@ Line 49: / Line 49: @@
 *[[Solar Pre-feasibility Report|Solar Pre-feasibility Report]]
 *[[TOR Solar Resource Assessment and Mapping|Terms of Reference]]<span style="background-color: rgb(255, 255, 255);">&nbsp;for solar (and/or wind) measurement campaigns</span>
 [[Category:Solar]]

@@ Line 2: / Line 2: @@
 = Overview =
-This article describes in detail , the need and types of resource assessment for solar technology.
+This article describes the need for solar resource assessment and typical methods.
 = Resource Assessment =
-The name might sound unfamiliar to some, but if one plans on investing in a solar plant either for a rooftop or for a farm, this is one of the pre-requisites to be considered. It is as important as assessing how much fuel is in one's car before travelling out.
+The name might sound unfamiliar to some, but if one plans on investing in a solar plant either for a rooftop or for a farm, this is one of the pre-requisites to be considered. It is as important as assessing how much fuel is in one's car before travelling out. It is also important at the national or regional level, for governments and system planners to understand where the best resources are located, which areas to prioritize for development, and the need for related grid investments.
-A simple definition of resource assessment would be, '''the systematic collection of site-specific meteorological data for the purpose of accurately estimating a prospective solar farm’s annual energy production'''.<ref name="Renewable NRG Systems">Renewable NRG Systems</ref>
+A simple definition of resource assessment would be, '''the systematic collection of site-specific meteorological data for the purpose of accurately estimating annual energy production'''.<ref name="Renewable NRG Systems">Renewable NRG Systems</ref>
-Like the weather, solar radiation varies with location and time so it is important to measure factors such as solar radiation, wind speed, air temperature, etc. to ensure that your site receives enough solar radiation. This in turn would help you to choose the most optimum configuration of solar plant for your site resulting in maximum electricity production. &nbsp;
+Like the weather, solar radiation varies with location and time so it is important to measure factors such as solar radiation, wind speed, air temperature, etc. over a multi-year period to get the best estimate of average resource potential. It is also important to under the temporal characteristics of the resource, such as the monthly and hourly fluctuations, and the sub-hourly variations within one or more "spot" years. This data is particularly important in informing grid integration studies, to understand how the solar power will be absorbed into the national grid and&nbsp;<span style="background-color: rgb(255, 255, 255);">what additional balancing requirements may be needed.</span>
 = How is Resource Assessment Done? =
@@ Line 18: / Line 20: @@
 There are various tools / models to assess solar resource, for simplicity they can be classified into into 2 broad categories:
 *Satellite derived data
-== Ground Mounted Measuring Instruments ==
+<br/>
-In the first method, i.e., Ground mounted measurements, instruments such as pyranometers or pyrheiometers are used for measurement of solar irradiation and other meteorological data. In India the Ministry of New and Renewable Energy has setup 115 automatic solar and meteorological measuring stations known as SRRA stations all over the country in Phase I and II. While without any doubt the data from such ground mounted instruments can be highly accurate, there are some limitations such as limited time of measurements, unknown accuracy, regular maintenance of the instruments, high cost of operation, etc.
+== <span style="background-color: initial;">Satellite Derived Data</span><br/> ==
-== Satellite Derived Data ==
+There are multiple commercial providers of solar radiation data, all of whom use satellite derived data fed into proprietary models to generate time series for multiple variables, with increasingly high degrees of uncertainty. An authoritiative tool for obtaining such data is the [https://globalsolaratlas.info Global Solar Atlas], which is a free, web-based tool provided by the World Bank with funding from the Energy Sector Management Assistance Program (ESMAP). The data served by Global Solar Atlas is provided by the firm Solargis.
-One of the source for satellite derived data is SolarGIS, which uses statistically aggregated solar and temperature data stored in the database with a time step of 15/30 minutes.Solar radiation is calculated from IODC satellite data covering a period from 1999 to 2011. Derived solar parameters are calculated for any fixed-mounted or sun-tracking PV. Air temperature is derived from atmospheric models from ECMWF and NCEP. SolarGIS database has been independently identified as the most reliable irradiation database on multiple occasions.
+<br/>
 = Conclusion =
-To summarize, both the above methods have their pros and cons. However the importance of either cannot be discounted as both are complementary to each other. While the Satellite derived data method provides global coverage with a reasonable quality, the ground mounted systems provide high-quality ground measurements for local conditions.<ref name="SolarGIS">SolarGIS</ref>
+To summarize, both the above methods have their pros and cons. However the importance of either cannot be discounted as both are complementary to each other. While the satellite derived data method provides global coverage with a reasonable quality, the ground mounted systems provide high-quality ground measurements for local conditions.<ref name="SolarGIS">SolarGIS</ref>
 While resource assessment is just the initial step, there are a list of other factors such as direction of solar PV panels, angle of mounting, losses which occur due to shading, wiring, soling, DC/AC conversion, etc. which play a key role in optimizing electricity yield of a solar plant. However as these are mainly system specific factors, they are rated after resource assessment.
 = Further Information =
 *[[Portal:Solar|Solar Portal on energypedia]]
-*[[3_Benefits_of_Going_Solar|3 Benefits of Going Solar]]<br/>
+*[[Solar Pre-feasibility Report|Solar Pre-feasibility Report]]
-*[[Solar_Pre-feasibility_Report|Solar Pre-feasibility Report]]<br/>
+*[[TOR Solar Resource Assessment and Mapping|Terms of Reference]]<span style="background-color: rgb(255, 255, 255);">&nbsp;for solar (and/or wind) measurement campaigns</span>
 [[Category:Solar]]

@@ Line 42: / Line 42: @@
 *[[3_Benefits_of_Going_Solar|3 Benefits of Going Solar]]<br/>
 *[[Solar_Pre-feasibility_Report|Solar Pre-feasibility Report]]<br/>
 = References =
-*<references /><br/>
+<references/>
 [[Category:Solar]]