Renewable energy forecasting is crucial for integrating variable energy sources into the grid.
It allows power systems to address the intermittency of the energy supply at different …

Bottom-up energy system models are often based on hourly time steps due to limited
computational tractability or data availability. However, in order to properly assess the …

The exponential growth of solar power has been witnessed in the past decade and is
projected by the ambitious policy targets. Nevertheless, the proliferation of solar energy …

This study examines all known methods that have been proposed in the literature to identify
clear-sky periods in historical solar irradiance time series. Two different types of clear-sky …

Clear-sky detection (CSD) is a crucial process in numerous solar energy applications. Many
CSD models have been proposed over the years, though model performance is generally …

Photovoltaic (PV) systems can be affected by complex shading. Software solutions have
been developed over time, offering an ever-increasing set of simulation possibilities to …

High resolution synthetic irradiance is of interest for theoretical studies such as grid
integration of solar PV and battery storage analysis. Access to site-specific data is often …

Surface irradiance measurements with high temporal resolution can be used to detect clear
skies, which is a critical step for further study, such as aerosol and cloud radiative effects …

Abstract The National Solar Radiation Database (NSRDB) provides more than 20 years of
solar resource information covering North and South America at a 30-min, 4-km by 4-km …

In Italy, the calculation of the energy needs of buildings has been mainly based on quasi-
steady state calculation procedures. Nowadays, the increasing interest in more detailed …