Ongoing | Monitoring


Internal effect, external effect, after-effect



Monitoring addresses the process control in order to monitor targets and, if necessary, to modify them. The company receives the monitoring tool for this purpose, in which it continuously documents the implemented measures, if necessary with the support of the consultant engineer. The consultant engineer checks the entire monitoring tool once a year. LEEN Energy Efficiency Monitoring conforms with DIN EN ISO 50001.

How you benefit

  • transparency regarding the savings effects of the implemented measures
  • Credible PR and external presentation


Top-down | Definition of parameters

Top-down monitoring is based on the time-related alteration of energy consumption parameters between the base year and the year of analysis. The annual energy index (e.g. in MWh per tonne) is the quotient of the total energy consumption and the production. It is an important indicator for the significance of energy costs in the company. However, this highly aggregated figure often needs careful interpretation with regard to energy efficiency as it includes all energy-related changes irrespective of their cause.

Bottom-up | Effects of the implementation of energy efficiency measures

Bottom-up monitoring lists all measures that are effective in a company in the year of analysis. The total of the effective measures then equals the savings in the respective year. The increase in energy efficiency and the CO2 reduction in the company are calculated in this way. As the savings effects can vary during the term due to changes in the basic conditions, the effects are adjusted through so-called correlation factors. This means that e.g. the savings effect of a measure increases because the production increases, insofar as the measure is dependent on it.

Course and content of the monitoring

  • Entering of the energy consumption and the production data into the monitoring tool by the company.
  • Entering of all implemented measures into the monitoring tool by the company, including those not mentioned in the energy review.
  • Bottom-up method: Calculation of the energy savings concerning primary and final energy (increase in energy efficiency) and reduction of 2 emissions on the basis of the implemented measures
  • Top-down method: Definition of energy parameters
  • Plausibility check of the determined results by the consultant engineer
  • Preparation of the monitoring report according to LEEN template by the consultant engineer.
  • Preparation of the network report including an evaluation of the target achievement by the consultant engineer in cooperation with the moderator.


Public relations

The extent to which the results are publicly communicated depends on the participating companies. Information on the cooperation can be provided in press conferences, through lectures and also via the internet; this creates positive synergies and thus a good image.

Termination or continuation

The fixed network period is closed with the last monitoring report for the network, which shows whether or not the set target has been achieved. The companies then decide if and how they wish to continue the network. As energy efficiency is a permanent task, there are some networks in Germany that have already been running successfully for many years.


Comliance document 50001 16247 Comliance document EEffG