Innovation in Energy Security and Long-Term Energy Efficiency ?

<p>The sustainable development of our planet depends on the use of energy. The increasing world population inevitably causes an increase in the demand for energy which on the one hand threatens us with the potential to encounter a shortage of energy supply and on the other hand causes the deterioration of the environment.</p><p>Therefore our task is to reduce this demand through different innovative solutions (i.e. both technological and social). Social marketing and economic policies can also play their role by affecting the behavior of households and companies and by causing behavioral change oriented to energy stewardship with an overall switch to renewable energy resources. This reprint provides a platform for the exchange of a wide range of ideas which ultimately would facilitate driving societies toward long-term energy efficiency.</p>