Energy efficiency targets for industry - evaluating implementation options
The German Energy Concept of 2010 proposes measures for industry to advance energy efficiency in the industry sector e.g. energy management system (EMS). In our study, we characterize various experiences with policy instruments to accelerate the improvement of energy efficiency. We define implementation options which describe how the achievement of energy efficiency targets and financial incentives can be linked on the base of an EMS. The implementation options are characterized by their target type (energy efficiency improvements or installation of energy efficiency measures), the level at which targets have to be achieved (branch or company level) and in the type of indicators for verification (energy intensity improvement vs. energy efficiency investment). All implementation options aim at setting pertinent incentives for energy efficiency improvement in each company. One evaluation criterion is the capability of dealing with the variance of energy efficiency improvements over time. We conducted an analysis of the historic annual energy savings in the period 2000-09. The results show a large variance, which results from the discontinuity of various impact factors. This must be considered, if consistent incentives for energy savings shall be provided over time. Furthermore, we evaluated the ability to formulate effective energy efficiency targets. The study quantifies the energy savings potential of the German industry until 2020 under different scenarios. We discuss for each implementation option how well it supports the realization of the resulting energy savings potentials. A third criterion relates to the integration of energy efficiency targets into a companies' decision-making process. A company will consider the implementation of an energy efficiency measure, if the payback period for additional investment cost is short enough or sufficient financial incentives exist. We expect that by the time of the Summer Study we can report about the outcome of the actual discussions in Germany.