| 2023 | - Consultancy services for the planning of a biogas pipeline in the USA
- Consultancy services for an existing biogas plant in the USA
- Laboratory testing of certain input materials for a biogas plant in the USA in co-operation with BTN laboratory
- Complete planning and construction of 6 agricultural biogas plants, including 5 with additional biomethane upgrading in the USA
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| 2022 | - Development of concepts to digest stillage from a whiskey distillery; evaluating the main process components and challenges
- Feasibility study including design of process parameters and dimensioning of process technology and preparation of site plans
- Planning and construction of an agricultural biogas plant in the USA
- Feasibility analysis for development and operation of a stillage-based biogas project in U.S.
- Evaluation of the performance of two existing biogas plants and recommendations for operational improvement
- Calculation of an energy calculation for an biogas plant in U.S.
- Preliminary planning of a biogas plant in the USA
- Extention of existing agricultural biogas plant, virtual gas pipeline (by truck), digestate heat recovery in USA, with biogas upgrading
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| 2021 | - Preplanning of a biogas plant in U.S.
- Optimization and enlargement of an existing biogas plant
- Operator service: Review of daily operating data from a biogas plant in the U.S.
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| 2020 | - Preliminary planning for the extension of an existing biogas plant by a gas treatment plant in USA
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| 2011 | - Issue an expertise for evaluation the costs of a biogas plant in USA to find potential investors
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| 2010 | - Preliminary evaluation of the technique of an existing biogas plant in USA
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| 2008 | - Performance of preliminary design of a biogas plant for the digestion of waste in USA
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| 2007 | - Operator service of a cofermentation plant in the USA.
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| 2005 | - Engineering of the enlargement of a cofermentation plant in the USA. Conception, approval documentation, cost assessment, tender documents, supervision of construction, start-up
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| 2003 | - Design of a large biogas plant in the USA. Conception, preliminary engineering, cost assessment, biogas plant description.
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