ABSTRACT

Energy security and sustainability are twins, born in 1713. As key concepts they were explained and made practicable through management rules in the seminal ‘Sylvicultura oeconomica’ by Hans Carl von Carlowitz, and have guided policy-making ever since. 1 As conceptual foundations of Germany’s present-day ‘Energiewende’ – the country’s green energy shift away from fossil and nuclear energy towards renewable energy supply – energy security and sustainability are topical and ever more relevant for many countries.