README.md

In cfernandezcener/SiteAdapt: Site Adaptation of Solar Irradiance Modeled Series

SiteAdapt

Procedure for improving the accuracy of modeled solar irradiance series (GHI, DNI, DHI) through overlapping and quality assured ground-based measurements

Modeled solar irradiance series are useful tools for evaluating the solar resource, as they provide long term series. Unfortunately, they are not usually suitable to meet the strict solar resource assessment requirements imposed by solar energy projects at a specific location. Thus, its site adaptation has become a standard practice of the industry, being typically requested by financial institutions in the detailed solar resource assessments of solar projects. This procedure mitigates the risk of solar projects, enhancing the adequate solar plant design and reducing the uncertainty of its yield estimates.

This R-package allows the adaptation of modeled series with coincident short-term high-quality ground measurements, improving their accuracy. The current version requires:

• Target Dataframe object including time (with same time zone as calibration_period), the solar irradiance modeled series to be site adapted, along with their clear sky index and solar elevation. Its columns should be named as follows: “Year”,“Month”,“Day”,Hour“,”Minute“,”GHI.mod“,”DNI.mod“,”DHI.mod“,”kc“,”Elev"
• latitude_target Site latitude of solar radiation series to be adapted (degrees, +N)
• z_target Site elevation above sea level of solar radiation series to be adapted (m)
• Calibration Dataframe object including time (with same time zone as calibration_period), the solar irradiance modeled series to be site adapted, along with their clear sky index and solar elevation. Its columns should be named as follows: “Year”,“Month”,“Day”, “Hour”,“Minute”,“GHI.obs”,“DNI.obs”,“DHI.obs”,“GHI.mod”,“DNI.mod”,“DHI.mod”,“kc”,“Elev”.
• latitude_calibrat Site latitude of solar radiation series for calibrating (degrees, +N)
• z_calibrat Site elevation above sea level of solar radiation series for calibrating (m)
• TimeZone Time zone specification of the calibration_period and target_period datasets
• GHI_threshold Upper limit of GHI series (same units that Target). For automatic calulation from observed data, set it to -99
• DNI_threshold Upper limit of DNI series (same units that Target). For automatic calulation from observed data, set it to -99

Calibrating and target periods must be at least partially coincident between all of them, but they can be from different locations.

Further inquiry

The author is happy to answer your questions and is open to future collaborations on this topic. Please contact: [e-mail] or [e-mail]

Installation

Users can install the development version of SiteAdapt:

with either the remotes package:

remotes::install_github("cfernandezcener/SiteAdapt")

or with the devtools package:

devtools::install_github("cfernandezcener/SiteAdapt")

Tutorial

A brief tutorial of SiteAdapt can be found at:

https://www.researchgate.net/publication/341793182_SiteAdapt_tutorial

Citation

The original paper describing the methods implemented in SiteAdapt is:

Fernández-Peruchena, C.M.; Polo, J.; Martín, L.; Mazorra, L. Site-Adaptation of Modeled Solar Radiation Data: The SiteAdapt Procedure. Remote Sens. 2020, 12, 2127. 

The original paper describing the methods implemented can be found at: https://www.mdpi.com/2072-4292/12/13/2127

License

This package is free and open source software under GPL-3 license.

cfernandezcener/SiteAdapt documentation built on July 3, 2020, 5:35 p.m.