To evaluate the solar resource at a site, the period of measurements analyzed must be as long as possible. In solar radiation database, a quality control that identifies errors and labels the data by means of different flags or indicators is fundamental. Reading and interpretation of flagged data can usually be tedious due to the large numbers...
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September 28, 2024 (v1)PublicationUploaded on: September 29, 2024
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September 28, 2024 (v1)Publication
The characterisation of the solar resource of a site is essential for different phases of solar energy projects. While only rough estimates of yearly levels of solar irradiation (global or direct, depending on the technology) are needed in their very early stages, the required depth of the assessment increases as the project advances, including...
Uploaded on: September 29, 2024 -
September 28, 2024 (v1)Publication
A methodology to classify days as a function of the state of the sky for Concentrated Solar Power (CSP) plant operation is proposed. For this purpose, three indexes are used to characterize the energy, variability and time distribution of the DNI and to define the type of days by means of clustering techniques. Two sets of indexes are tested...
Uploaded on: September 29, 2024 -
September 28, 2024 (v1)Publication
In this work, the representativeness of the day-types classified according to the solar radiation features by two classification methods is evaluated from the perspective of the production of two parabolic trough plants. A new methodology to characterize the representativeness of the day-types using a novel index is proposed, based on the...
Uploaded on: September 29, 2024 -
March 23, 2021 (v1)Publication
Typical Solar Years (TSYs) are key parameters for the solar energy industry. In particular, TSYs are mainly used for the design and bankability analysis of solar projects. In essence, a TSY intends to describe the expected longterm behavior of the solar resource (direct and/or global irradiance) into a condensed period of one year at the...
Uploaded on: March 25, 2023