| Popis: |
The reliability of stand alone photovoltaic systems is analyzed in terms of the loss of load probability, LLP. A variety of numerical and analytic models for calculating the LLP are described and evaluated using data for three Spanish locations. Madrid, Murcia and Santander, selected because they represent different climatic conditions. It is concluded that numerical models are accurate but complex to use, while analytic models exhibit significant lack of accuracy. A new analytic model, as accurate as the numerical models and as simple as analytic models, is proposed. For each location, the model requires as input 4 different coefficients. |
