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PV power forecasting toolkit for smart grid-management













Solar Platform




Funding: Romanian National Authority for Scientific Research and Innovation, CNCS/CCCDI – UEFISCDI





Nowadays, the smart-grid concept is usual in the electricity grid management. Forecasting of the grid load and the power generated from renewable energy resources are important tasks to provide intelligence to the grid. Accurate forecasts will enable the computers to take control actions to balance the power grid. The forecast horizons up to 24 hours ahead are of particular interest for grids partially fed by photovoltaic (PV) plants. The practical importance of this time range is motivated both by technical reasons and market perspective. Basically, intelligent grid management requires intra-hour forecast of the PV plants output power, technical constraints being related to start-up times of conventional power sources connected to the grid as balancing instruments.

In this context, this project aims to contribute to the smooth, safe and efficient integration of large PV plants into the power grid. This is planned to be achieved by accurately forecasting the energy production of the PV plants in compliance with the operators’ needs. 

The project scope is to build an innovative toolkit for accurately forecasting the energy production of a PV plant (identified in the following with the acronym FORPV). The toolkit FORPV consists of two distinctive physical units: (1) The computational unit (C-UNIT) where the forecasting applications developed within this project will be implemented and (2) The PV plant monitoring unit (M-UNIT) which will provide radiometric and meteorological data measured in-situ at minimum one-minute sampling, data required for running the forecasting applications. C-UNIT will play multiple roles: real-time control of the forecasting process, database management, communication with M-UNIT, providing forecasts to the grid operator (intra-hour forecasts) and PV plant operators (the next day forecast).       

From the functional perspective, the procedures for implementing the FORPV toolkit are the following: First, M-UNIT is installed at the PV plant location and the communication with C-UNIT is established. Once the communication system becomes operational, M-UNIT feeds data to C-UNIT. A post-processing process is running (data quality check, inferring the required physical quantities) and then the raw and processed data are stored. The information from database is accessed by the forecasting software to generate forecasts at different time horizons and frequencies (set in respect to the needs). Finally, the forecasts are provided to operators.  

In this project, the toolkit FORPV is planned to be designed based on the previous results of our team, developed at the trial product stage (the “ugly” prototype in terms of TRL) and validated on the Solar Platform of the West University of Timisoara (,




Last update 25.06.2018