1. Market report 2013;European Photovoltaic Industry Association (EPIA),2014
2. World in transition – towards sustainable energy systems;German Advisory Council on Global Change (WBGU),2003
3. PV output power fluctuations smoothing and optimum capacity of energy storage system for PV power generator;Senjyu,2008
4. Evaluation of LFC capacity for output fluctuation of photovoltaic power generation systems based on multi-point observation of insolation;Yanagawa,2001
5. Voltage fluctuations on distribution level introduced by photovoltaic systems;Woyte;IEEE Trans Energy Convers,2006