New gross energy requirements (GER) have been calculated for 40 materi
als for the reference year 1988. The materials comprise metals, plasti
cs, paper, ceramics and non-metallic minerals, wood, and fertilizers.
GERs are given both for the final (distinguished with respect to energ
y carriers) and primary energy consumption. Most of the GERs hold for
Western Europe but some only apply to The Netherlands.