1. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC.
2. Zoss T, Rosa M, Romagnoli F, Gusca J, Blumberga D. Modelling of Electricity Accumulation from Irregular Renewable Energy Resources. In: Proceedings of the 27th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Finland, Turku, 15-19 June, 2014. Turku: 2014, pp.1-15.
3. Wind power impacts and electricity storage - A time scale perspective;Hedegaard;Renew Energy,2012
4. Economic analysis of using excess renewable electricity to displace heating fuels;Pensini;Appl Energy,2014
5. Cost-minimized combinations of wind power, solar power and electrochemical storage, powering the grid up to 99.9% of the time;Budischak;J Power Sources,2013