Expert reports for waste management and biogas plants

Prof. Dr. Martin Wittmaier

Prof. Dr. Martin Wittmaier

Sworn expert for waste management and biogas plants, appointed by the Bremen Chamber of Commerce (IHK) for Bremen and Bremerhaven.

öffentlich bestellter und vereidigter Sachverständiger

Member of the Academy of Circular Economy
(https://www.dgaw.de/de/akademie-der-kreislaufwirtschaft/ueber-die-akademie)

Prof. Dr. Martin Wittmaier, managing director of the institute, is a sworn expert for waste management and biogas plants, appointed by the Bremen Chamber of Commerce (IHK) for Bremen and Bremerhaven. He provides expert reports on various issues for biogas plants and for waste management. In addition, the institute prepares expert reports and expert statements on legal (e.g. commercial waste ordinance) or operational requirements (e.g. assessment of profitability, plant operation, input materials) for economy and municipalities as well as valuations for biogas plants and waste management plants.

Gutachten Biogasanlage - Expert reports

Selected references

2026Expert report according to the Commercial Waste Ordinance
2026Expert report according to the Commercial Waste Ordinance
2026Expert report on damage at a biogas plant in Lower Saxony
2025 – 2026Expert report on damage to a generator at a biogas plant
2025Expert report according to the Commercial Waste Ordinance
2025Expert report on the economic operation of a biogas plant after the end of the remuneration entitlement
2024Court report on the appropriateness of disposal costs in Lower Saxony
2024Court report on the appropriateness of costs for the disposal of municipal waste in landfills in Berlin/Brandenburg
2024Expert report according to the Commercial Waste Ordinance
2023Expert report according to the Commercial Waste Ordinance
2023Court report on the function and efficiency of a digestate treatment plant in Lower Saxony
2023Court report on damage to exhaust gas heat exchangers in Lower
2023Court opinion on damage to exhaust gas heat exchangers at a biogas plant in Lower Saxony
2023Expert report on recycling and disposal of flax fibre reinforced thermoplastic compounds
2022Expert report on storm damage at a biogas plant in northern Germany
2022Expert report to assess the applicability of the ElektroG to cable systems
2022Expert report according to the Commercial Waste Ordinance
2022Evaluation of funding applications for climate protection and digitalization measures for a city in northern Germany
2022Court report in the context of a fir damage case on a biogas plant in Northern Germany
2022Court report in the context of a damage case in connection with efficiency-increasing measures on a biogas plant in Northern Germany
2022Expert report in connection with a damaged digester of a residual waste treatment plant in Lower Saxony
2022Court report on a pipeline damage in Rhineland-Palatinate
2021Expert report according to the Commercial Waste Ordinance
2021Preparation of CO2 balances for waste treatment and wastewater plants in North Rhine-Westphalia
2020Technical and economic assessment of 3 biogas plants in Mecklenburg-West Pomerania
2020Court report on the sealing of a digestate storage container
2020Expert report to determine the effects of the closure of a landfill in Northern Germany

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Biogas chp unit
Biogas plant
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Biogas power engine

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Institut für Energie und Kreislaufwirtschaft an der Hochschule Bremen GmbH

Institute for Energy, Recycling and Environmental Protection at Bremen University of Applied Sciences