1. U.S. Energy Information Administration. International energy statistics. U.S. Department of Energy, Washington, DC. www.eia.doe.gov
2. Dunn B, Kamath H, Tarascon JM (2011) Electrical energy storage for the grid: a battery of choices. Science 334:928–935. https://doi.org/10.1126/science.1212741
3. Alonso-Vante N (2003) In: Wieckowski A, Savinova ER, Constantinos VG (eds) Catalysis and electrocatalysis at nanoparticle surface. Basel, New York, p 931
4. Alonso-Vante N (2003) In: Vielstich W, Lamn A, Gasteiger H (eds) Handbook of fuel cells-fundamentals, technology and applications. Wiley, Chichester, UK, p 534
5. Vaona A (2016) The effect of renewable energy generation on import demand. Renew Energy 86:354–359. https://doi.org/10.1016/j.renene.2015.07.062