Project Image Pool

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Terms of use: The pictures on this site originate from the projects in the frame of the programmes City of Tomorrow, Building of Tomorrow and the IEA Research Cooperation. They may be used credited for non-commercial purposes under the Creative Commons License Attribution-NonCommercial (CC BY-NC).

Design example for a highly mobile hydrogen refuelling station

Functionality of highly mobile hydrogen refuelling using the example of the MAX Mobile Refueler from Maximator: (1) The refuelling vehicle is refuelled at the public 700 bar truck filling station. (2) The already compressed hydrogen is brought to the machine by the transport vehicle. (3) Hydrogen is refuelled into the machine in a few minutes using a displacement principle with low energy input, whereby the highly mobile filling device is driven by the machine to be refuelled.

Icing on structures on the nacelle of a wind turbine

Webcam image of superstructures on the nacelle of a wind turbine with recognizable icing, which corresponds to the structure and consistency of clear ice directly on the structures and changes to hard rime as it progresses. The turbine is located at a test site of the Nergica center of applied research in eastern Canada. The webcam image is part of a dataset in the “Task 54 Icing Event Database”.

Modeled performance envelopes of rotor blade heating systems

Modeled performance envelopes as curves depending on wind speed and ambient temperature for different values of liquid water content (LWC) and surface temperature of the rotor blade. The curves were calculated with the “Task 54 Performance Envelope Model”.

Group picture of the Task meeting in Calgary

Group picture of the participants of the task meeting following the “Electricity Transformation Canada” conference in Calgary in October 2023.

Task presentations at stakeholder meeting of IG Windkraft

Ian Baring-Gould (NREL, Task 41) giving a presentation on distributed wind's role in supporting the clean energy transition. Further presenters in the panel from left to right: Franziska Gerber (Meteotest, Task 54), Charles Goudreau (Nergica, Task 54), Andreas Krenn (Energiewerkstatt), Claas Rittinghaus (Energiewerkstatt, Task 54).

Group picture of participants of Task 41, 52 and 54

Group picture of the common Task meeting and dissemination workshop of Tasks 41, 52 and 54 in Vienna.

Direct Thermochemical Liquefaction - Overview Task activities

The IEA Bioenergy Task34 addresses several levels with the focus of DTL: Feedstock, DTL technologies, intermediates technologies and potential applications of DTL products.

Solare District Heating: Structure, Heat and Revenue Streams

General structure of solar district heating (top) as well as important heat and revenue streams (bottom): The figure shows solar collectors, heat exchangers, a buffer storage, pumps, valves, the grid and consumers.

Thermal Solar Plants: Life Cycle and Planning

Stages in the solar thermal plant life cycle (top), flow chart for the decision about implementation of solar district heating (bottom)

The large-scale thermal solar plant of Silkeborg, Dk

Overview over the large-scale solar thermal plant in Silkeborg, Denmark (left) and schematic showing the different sections and piping of the installation (right)

Structure of IEA SHC Task 68

Logo board of the countries and institutions (universities, research centres and companies) that participate in IEA SHC Task 68. The Task Management (TM) and the Subtask leads (A to D) are highlighted. Below, the key topics of IEA SHC Task 68 are shown: Higher efficiency (Subtask A), digital solutions (Subtask B), lowering costs (Subtask C) and dissemination / communication (Subtask D)

Examples for modern solar thermal collectors

Ground mounted evacuated tube collectors in Büsingen, Germany; combination of flat plate collectors and parabolic trough collectors in Taars, Denmark; roof integrated solar thermal collectors on “solar@home” building in Crailsheim, Germany; demo system of Sun Oyster on a flat roof in Zhangjiakou, China

IEA-PVPS Task 1 Expert Group in front of the Norwegian PV-Wafer production NorSun

The IEA-PVPS Task 1 Expert Group during the technical visit in front of the Nor Sun wafer factory building in Ardalstangen/Norway. Due to strong Chinese competition in PV wafer production, this plant had to be shut down in 2023; as part of the European Net Zero Industry Act, it should be possible to resume production.

PV Facade, Innovametall

PV Facade, Innovametall company, Freistadt, Upper-Austria

Sonnenkraft _Campus

Sonnenkraft-Campus in St.Veit/Glan, Austria – PV-Facade with certified Kromatix Solar Glas - Photo credit: Sonnenkraft

SOLARSKYPARK Fast-E-Chargingpark for E-Mobility, Freistadt Upperaustria

PV Carport with E-charging and Energystorage • 176kW/597kWh Outdoorstorage by neoom • 11 Stk 300 kW E-Charging stations

PV Noise barrier

PV Noise barrier - Ulmerwave

Distribution of the ion current density in the membrane of the aged cell, expressed as a percentage compared to the initial state. This provides a detailed insight into the current distribution within the cell.

False colour image of the ion current density across the flow field of the cell.

Graphical representation of the assessment across a range of different storage technologies

Comparison of various parameters (storage capacity, TRL, efficiency, cost, safety and commercial availability) for the storage technologies under consideration. These include liquid hydrogen, compressed hydrogen, organic hydrogen carriers, metal hydrides, ammonia, but also redox flow and lithium-based battery systems, pumped storage and chemical looping hydrogen (HyLoop).

Concept of surfactant-doped polyaniline coating for gas diffusion layers

PTFE-free hydrophobisation and improved electrical conductivity: Surface-active species consisting of non-polar, negatively charged terminal groups and apolar residues attach themselves to the positively charged PANI framework, which ensures electrical conductivity.