Renewable Energies & Environment

By providing engineering and consultancy services in the areas of renewable energies and the environment, Fichtner experts assist in implementing measures for environmental and climate protection all over the world.

We handle projects for the whole range of technologies in the sector of renewable energies and support our clients throughout all project phases, from feasibility study through to plant commissioning. For projects on a small scale as well as large-scale projects with installed capacities of several 100 MW, if called on Fichtner takes over complete project and risk management. We likewise provide expert assistance for other tasks, like market analyses, evaluation of government incentive programs and due diligence services.

  • Hydropower Hydropower


    We have been planning and providing consultancy worldwide for hydropower projects for decades. We assist our clients in preparing studies and in new construction and rehabilitation projects throughout all phases, from preliminary study through execution to acceptance. For planning and implementing hydropower plants, our engineers handle component design, for example the design discharge for run-of-river power plants or optimal reservoir dimensioning in consideration of hydrology and projected electricity sales. The plants are so conceived that their environmental impacts and social costs are minimized, with economic performance having a high priority.

    Acting as owner’s engineer, we assist our clients in compiling contractual and technical tender documents, implementation planning, and bid evaluation up to contract signing. Our engineers oversee erection of specific structures as well as the interfaces between civil works, steel hydraulics structures, mechanical engineering and electrical engineering.

    For rehabilitation projects, our engineers can draw on a valuable stock of experience for the necessary assessment of plant components, in particular electrical and mechanical installations, and their residual service life for reliable operation.

    Thanks to our experts’ technical know-how in the hydropower sector, our services also as lender’s engineer are valued, for which impartial evaluation of new and existing power plants as well as monitoring of plant construction is called for.

    Principal installation types:

    • Dams and barrages
    • Channels, tunnels, galleries and shafts, penstocks
    • Powerhouses and underground works
    • Reservoir sedimentation
    • Flood control
    • Low head plants
    • High head plants
    • Run-of-river hydropower plants
    • Hydropower plants with reservoir
    • Pumped storage power plants
    • Tidal power plants
  • Wind Energy Wind Energy

    Wind Energy

    Fichtner has been playing an active role in the success story of wind energy since the 1980s. For example, Fichtner as owner’s engineer rendered consultancy services for the first wind farms in Germany, assisted in capacity expansion in developing countries, and advised the German Research and Development Ministry on its first wind energy program, from which later the EEG Renewable Energy Sources Act was developed.

    Today, the Fichtner Group offers a network of highly qualified engineers and consultants with expertise in all aspects of onshore and offshore wind energy. Our experts are equally conversant with the challenges of German and international investors and development banks as they are with local energy supply markets, tariff structures and permit application procedures.

    As owner's engineer, we assist our clients in all technical and commercial aspects, from initial project idea up to wind farm commissioning. As lender’s engineer, we prepare due diligence reports and monitor project realization and commissioning.

    Akkreditierung DakkS (Kopie 1)

    In the field of wind & site assessment Fichtner GmbH & Co. KG is accredited by DAkkS in accordance with DIN EN ISO/IEC 17025:2018 for the scope listed in the annex of certificate D-PL-21362-01-00.
    View certificate
    More information about wind & site assessments

    Services in the wind energy sectors:

    • Owner’s engineer throughout all project phases
    • Energy yield assessments and wind measurements
    • General site selection and turbine micrositing
    • Feasibility studies
    • Conceptual engineering, FEED, and detail design
    • Drawing up operation and maintenance concepts
    • Tendering and contract award for EPC and IPP projects
    • Construction supervision
    • Wind turbine inspections
    • Analyses of operating data (post construction EYA)
    • Lifetime assessments
    • Due diligence reviews

    Specific services for offshore wind energy:

    • Owner‘s engineering for offshore grid tie-in
    • Geotechnical expert in accordance with BSH standards (Federal German Maritime and Hydrographic Agency)
    • Soil investigations in accordance with BSH standards
    • Geotechnical design and concept studies for foundations
  • Photovoltaics Photovoltaics


    Our experience in the photovoltaic (PV) sector is based on handling several hundred projects in over 50 countries on all inhabited continents.

    We handle large-scale ground-mounted as well as roof-mounted and building-integrated PV plants, from initial feasibility study, through detail engineering and tendering, up to site supervision, acceptance testing and monitoring of plant operation. Acting as owner’s engineer, we assist our clients by providing planning and consultancy services and likewise as lender’s engineer we offer a complete range of services for all project phases.

    So that plants based on solar energy will also be able to supply power independently of insolation, they are now being combined with conventional generation plants and energy storage. For planning such hybrid supply systems, Fichtner has developed its own hybrid calculator to simulate complex hybrid systems.

    Specific services:

    • Project appraisals
    • Technical due diligence audits
    • Energy yield forecasts and solar irradiance assessments
    • Assessments of the technologies of PV cells and PV modules – crystalline, thin film
    • Factory acceptance tests and acceptance trials of PV plants
    • Thermographic (IR) measurements, measurement of I-V curves (current-voltage characteristics)
    • Verification of plant output and performance
    • Modeling of PV hybrid systems
  • Solar Thermal Energy Solar Thermal Energy

    Solar Thermal Energy

    For solar thermal power generation plants, we offer complete services in all project phases, from prefeasibility studies and evaluation of meteorological data up to commissioning and acceptance of facilities. Counting to our clients in this sector are, alongside project developers, investors and banks, also project owners, general contractors and technology suppliers.

    We have built up our wealth of experience through many challenging projects, and this has made us one of the world’s leading engineering consultancy enterprises for solar thermal power plants. Since our first solar thermal project in 1977, up to now we have planned or assisted in the realization of concentrating solar power (CSP) projects in over thirty countries with a total rating of more than 5000 MW. For technically highly complex solar hybrid power plants, we are involved in virtually every project worldwide.

    We bring our expertise in combining conventional with renewable technologies to bear when undertaking projects for solar seawater desalination, industrial process heat utilization and tertiary oil recovery.

    Principal facility types:

    • Parabolic trough power plants
    • Linear Fresnel plants
    • Solar tower power plants
    • Solar hybrid power plants – integrated solar combined cycle (ISCC)
    • Solar seawater desalination
    • Solar process heat for industry and mineral oil extraction
    • Solar plants for heat and cold generation
  • Biomass and Biogas Biomass and Biogas

    Biomass and Biogas

    Bioenergy plays a key role in the sector of renewable energies. Alongside biomass-fired thermal power plants, our services encompass biogas plants for processing residues and energy crops, organic Rankine cycle plants, and co-firing in industrial furnaces. We are equally familiar with the specific challenges of technologies for which there is no great track record like pyrolysis and gasification, for example for the production of synthetic biofuels. But we are always mindful of general environmental aspects and specific concerns, for example competing uses for foodstuffs production.

    In the sector of bioenergy, Fichtner marries its expertise in the wide range of technologies that find application with its methodological expertise and project know-how derived from the entire field of power plant technology. Our experts for bioenergy draw on the specific know-how of our specialist departments for mechanical, electrical and I&C engineering.

    Specific services:

    • Concept studies and master plans
    • Feasibility studies
    • Due diligence project reviews on behalf of investors and lenders
    • Assistance in planning, tendering and contract award
    • Project monitoring
    • Expert appraisals and policy advice
  • Geothermal Energy Geothermal Energy

    Geothermal Energy

    Heat pumps permit the exploitation of near-surface geothermal energy at depths down to 400 m for heat extraction. Deeper geothermal sources down to 3000 m can likewise be used for heat extraction but these serve above all for power generation. In this connection, a distinction can be made between hydrothermal and petrothermal systems, with the latter also referred to as hot dry rock systems. For sources in the lower temperature range, an organic Rankine or a Kalina cycle may find application.

    When planning geothermal power plants, Fichtner offers all services for the complete above-ground part of the power plant, including thermal water treatment, geothermal well planning and the entire interface to the underground part. Also obtaining permits under mining and pollution control legislation as well as feeding in of the generated electricity to the grid are handled by Fichtner’s experts. For all services connected with the underground part Fichtner cooperates with experienced partners.

    Specific services:

    • Feasibility studies
    • Techno-economic analysis
    • Preliminary planning and conceptual engineering of power plant and well location
    • Interface to underground part
    • Power plant design
    • Tendering and bid evaluation
    • Site supervision
    • Due diligence audits
  • Environmental Studies Environmental Studies

    Environmental Studies

    Potential environmental impacts and compliance with environmental standards have to be considered right from the start of planning infrastructure projects, like power plants, power lines, gas pipelines, landfills, and refineries.

    In an environmental impact assessment (EIA), our experienced experts and consultants from a range of disciplines identify and evaluate environmental impacts for all manner of infrastructure projects. The aspect of social responsibility is additionally considered in an environmental and social impact assessment (ESIA). Monitoring of implementation and adherence to recommended mitigation, avoidance and compensatory measures are conducted through environmental auditing by experienced experts.

    In an environmental due diligence review, we check and evaluate the environmental risks of a company or a project. This serves to reveal to a potential buyer, right from the outset, any potential environmental risks and the costs for the target asset that could arise as a result.

    Specific services:

    • Environmental impact assessments
    • Social impact assessments
    • Due diligence review under environmental aspects
    • Environmental auditing and Monitoring
    • Pollutant dispersion calculations
  • Permit Applications Permit Applications

    Permit Applications

    When applying for permits for major infrastructure projects, many widely differing aspects have to be considered. Due to increasingly stringent legal requirements, high levels of public attention and the growing requirement for public consultation, this procedure is becoming ever more complex.

    With our professional permit application management, we support our clients’ projects. This encompasses coordination of the entire permit application procedure, preparation of concept and feasibility studies, drawing up permit applications, consultations with permit-granting authorities and sectoral planning agencies, flanking support of the entire permit application procedure, and preparation for and participation in official and public hearings.

    These services are rendered, for example, for major projects, like power plants, gas pipelines, HV transmission lines, major industrial and process plants, waste treatment plants, and traffic infrastructure.

    Specific services:

    • Corridor routing studies
    • Siting studies and site analyses
    • Permit application management and coordination of procedures
    • Permit application planning
    • Applications for regional plan approval and permit-granting procedures
  • Environmental Management Environmental Management

    Environmental Management

    Environmental protection confronts companies with myriad challenges. Through management and structural consultancy, our interdisciplinary team assists both public sector clients and private companies in identifying environmental aspects and taking these fully into account.

    We advise ministries and regulatory agencies in structuring environmental standards with international consultations on these for developing institutional framework conditions in the interests of a sustainable environmental policy and strategy.

    In the field of climate change and climate protection consulting we have more than 15 years of experience, particularly on greenhouse gas (GHG) emission reductions to mitigate climate change. Consultancy is offered to corporations, project developers, public organizations, financial institutions and other organizations and covers a wide range of economic sectors such as energy generation, energy transmission and distribution, oil and gas, industry, and waste management and others.

    For systematic acquisition and processing of the needed environmental data, our IT specialists develop sophisticated environmental information systems. Our consultants facilitate companies and public institutions in adopting a long-term enviro-political stance through appropriate environmental strategies and environmental management systems. To ensure occupational health and safety as well as environmental protection, our HSE experts advise on the risk potential for life, health and the environment.

    Specific services:

    • Risk and safety analyses
    • Setting up and strengthening institutions (policy counseling)
    • Climate protection consulting
    • Environmental information systems
    • Environmental management systems
    • HSE (health, safety, environment) management
  • Environmental Protection Technologies Environmental Protection Technologies

    Environmental Protection Technologies

    Cutting edge process technology and process optimization ensure that the atmosphere, water and soils will not become polluted. Fichtner can boast expertise that has been built up over decades in emissions abatement in industrial facilities, regional air quality control planning and global climate protection.

    Air quality control in industrial facilities focuses on the design and optimization of environmental and process measures for pollutant emission abatement, encompassing conceptual design and implementation of measures with optimization of flue gas cleaning plants in the sectors of energy, waste treatment and industry. Covered are all flue gas cleaning technologies, such as desulfurization, deNOx and particulate removal, for thermal power plants. These are complemented by combustion modification measures, for example fuel switching and low-pollution combustion technologies. Plant operators call on Fichtner for guidance on compliance with the strict pollutant emission standards.

    For climate protection, right from the planning stage of modern power plants, future requirements for possible retrofitting of CCS equipment are considered in the form of capture-ready concepts.

    Key areas of activity :

    • Flue gas, offgas and exhaust treatment
    • Low-pollution combustion technologies
    • Carbon capture and storage (CCS)
  • Waste Management Waste Management

    Waste Management

    Our economists, environmental engineers and organization experts support projects for environmentally sound and safe disposal with resources recovery of all wastes generated by society’s economic and production cycle. For over 30 years, the focus has been on waste avoidance and resources recovery from waste.

    Fichtner draws up master plans and designs highly sophisticated waste management concepts for public and private waste disposal entities, advises governments, and optimizes waste management in industrial processes. Our expertise is based on numerous successful projects in the communal and industrial sectors in Germany and internationally. Primary focuses of our consultancy are privatization of municipal waste management services and outsourcing of central utilities supply and waste disposal tasks in industry. Further, we conduct assessments from the waste management perspective of production and products as part of studies for an integrated product policy (IPP) and life cycle assessment (LCA).

    For primarily bank-financed development projects, through waste management investigations and concepts developed from these, Fichtner supports upgrading of the environmental situation in many developing countries.

    Specific services:

    • Regional, municipal and industrial waste management concepts
    • Strategic studies on materials flow and disposal management
    • Tariff studies
    • Studies on economic optimization of waste disposal concepts
    • Techno-economic appraisals of waste treatment and disposal
    • Privatization models and public-private partnership (PPP) measures
    • Consultancy on reorganization for all facets of waste management
    • IPP and LCA studies
  • Waste Treatment Waste Treatment

    Waste Treatment

    Because waste is also an energy carrier and source of feedstocks, we focus on the best possible utilization of its energy and recoverable materials content. To ensure optimal resources recovery from waste and its ultimate disposal, we plan thermal and mechanical-biological waste treatment plants. Environmentally sound landfilling is the final link in the disposal chain.

    Since the start of the 1960s, our engineers have investigated, engineered, tendered for, and supervised realization and rehabilitation of facilities for waste transfer; biological treatment, i.e. composting and anaerobic digestion; waste sorting; thermal treatment; and landfilling for all waste categories, starting with classical municipal solid waste through sewage sludge and up to hazardous waste.

    As well as conventional plants for waste treatment, on the basis of refuse derived fuel (RDF), Fichtner plans facilities for supplying power, steam and heat to industry and communities. For thermal treatment in combined heat and power and industrial power plants or also waste-to-energy (WTE) plants, finding application are stoker-fired and fluidized bed furnaces as well as gasification (plasma gasification) and pyrolysis.

    Our landfill planning ranges from the conventional reactor landfill to special-purpose landfills for treated waste streams. To protect soils and water resources, we implement systems for leachate collection and treatment as well as for landfill gas extraction.

    Principal technologies:

    • Materials recovery including biological treatment
    • Thermal energy recovery, i.e. waste-to-energy
    • Mechanical-biological treatment
    • Refuse derived fuels (RDF)
    • Landfilling