1. Carnegie R, Gotham D, Nderitu D. Preckel Utility Scale Energy Storage Systems Benefits, Applications, and Technologies. State Utility Forecasting Group. Indiana, United States: Purdue University, Energy center, Indiana Utility regulatory commission; 2013
2. Irina S. Renewable Energy Storage Possibilities. Saarbrucken, Germany: AV Akademikerverlag; 2013
3. Mishra S. Efficient Power Flow Management and Peak Shaving in a Microgrid-PV System. Tulsa, USA: Transmission Planning Engineer, American Electric Power
4. European Commision. Communication from the Commission to the European Parliament 339 and 340. Brussels, Belgium: European Commission, European Union; 2015
5. IRENA, Adapting Renewable Energy Policies to Dynamic Market Conditions. In 2014