Solar Performance Reconciliation helps you make sure existing projects are operating at optimum levels, diversify your portfolio of assets, and manage your pipeline of proposed sites.
Vaisala delivers an updated solar irradiance and weather time series at either a single project or across your entire portfolio of locations. Time series easily integrate into your own internal processes and are based on our regularly updated global solar dataset, which includes nearly two decades of hourly solar values.
Vaisala's 3TIER Services produced the first global solar irradiance map and time series dataset at roughly three times the resolution of previous U.S. solar datasets and at thirty times the resolution of global datasets available from NASA and continuously updated. Based on almost two decades of satellite imagery and cutting-edge technology, our uniform methodology is supported by a large scientific and research community.
The dataset is based on actual, quarter- or half-hourly, high-resolution visible satellite imagery observations via the broadband visible wavelength channel at a 2 arc minute resolution. These data have been processed to hourly GHI, DNI, and DIF values. Vaisala processes the satellite images based on a combination of in-house research and algorithms published in peer-reviewed scientific literature. These algorithms contain parameters and coefficients that are based on empirical fits to observational data. Weather variables are gathered from the ECMWF forecasting grids available globally.