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Wind-to-Hydrogen Animation (Text Version)

This text version of the wind-to-hydrogen animation describes how electricity from wind turbines is used to produce hydrogen at NREL's National Wind Technology Center.

Page 1: Wind turbines, photovoltaic panels, a utility pole, and transformers are graphically displayed near a small building at the foothills of the mountains. A text description of the project is provided:

Wind 2H2 Project: The National Renewable Energy Laboratory and Xcel Energy recently launched an innovative wind-to-hydrogen (Wind2H2) project that uses electricity from wind turbines (or photovoltaic panels) to produce and store hydrogen, offering what may become an important new template for future energy production. Located at NREL's National Wind Technology Center near Boulder, Colo., the new facility links wind turbines to electrolyzers, which pass the wind-generated electricity through water to split the liquid into hydrogen and oxygen. The hydrogen can be stored and used later to generate electricity from an internal combustion engine or a fuel cell.

Page 2: Wind2H2 Project components are highlighted individually with descriptive text boxes:

  • Bergey Windpower 10-kW Wind Turbine: Wind turbines use the wind's energy to generate electricity. This wind turbine can produce 10 kilowatts of electricity.

  • Northern Power Systems 100-kW Wind Turbine: Wind turbines use the wind's energy to generate electricity. This wind turbine can produce 100 kilowatts of electricity.

  • BP Solar 10-kw Photovoltaic Modules: Photovoltaic modules convert sunlight to electricity. These multi-crystalline modules can produce 10 kilowatts of DC electricity.

  • Proton Energy Systems HOGEN 40RE Electrolyzer: This electrolyzer is a proton exchange membrane (PEM) type. It can produce 2.27 kilograms of hydrogen per day.

  • Teledyne HMXT-100 Electrolyzer: This electrolyzer is an alkaline type. It produces 12 kilograms of hydrogen per day.

  • Pressure Products Industries, Inc. Hydrogen Compressor: The hydrogen diaphragm compressor compresses the hydrogen gas produced from the electrolyzers at 150 psi (pounds per square inch) to the storage pressure of 3,500 psi.

  • CP Industries, Inc. Hydrogen Storage Tanks: The steel tanks can store up to 85 kilograms of hydrogen at 3,500 psi.

  • Hydrogen Engine Center Internal Combustion Hydrogen Engine: The internal combustion engine runs on stored hydrogen and generates electricity that will be sent onto the utility grid for use during peak demand. This generator can produce 60 kilowatts of electricity.

  • PlugPower PEM Fuel Cell: The proton exchange membrane (PEM) fuel cell runs on stored hydrogen and generates electricity that will be sent onto the utility grid for use during peak demand. This generator can produce 5 kilowatts of electricity.

  • Control Room: The control room houses the monitoring and data collection equipment as well as the power electronics.

  • Electrical Transformer: This device steps the electrical voltage from 480 volts to 13,200 volts.

Page 3: AC Grid Connected Wind Turbine, Configuration I: This page displays the following flow of power from the wind turbine to the electrical transformer to the utility pole. Then, power flows from the utility pole to another electrical transformer to the electrolyzers. Hydrogen output flows from the electrolyzers to the hydrogen storage tanks to the hydrogen energy center. Then, power flows from the hydrogen energy center or the fuel cell to the electrical transformer. Then, power flows from the electrical transformer to the utility pole.

Text boxes describe each component of the system (see page 2 write-up for text box content).

Page 4: DC-to-DC from 100-kw Wind Turbine, Configuration II: This page displays the flow of power from the wind turbine to the electrical transformer to the utility pole. It also displays the flow of power from the wind turbine to the control room to the electrolyzers. Then, hydrogen output flows from the electrolyzers to the hydrogen storage tanks to the hydrogen energy center. Then, power flows from the hydrogen energy center to the electrical transformer to the utility pole.

Text boxes describe each component of the system (see page 2 write-up for text box content).

Page 5: AC-to-DC from 10-kw Wind Turbine, Configuration III: This page displays the flow of power from the wind turbine to the control room to the electrolyzers. Then, hydrogen output flows from the electrolyzers to the hydrogen compressor to the hydrogen storage tanks to the hydrogen energy center. Then, power flows from the hydrogen energy center to the electrical transformer to the utility pole.

Text boxes describe each component of the system (see page 2 write-up for text box content).

Page 6: DC-to-DC from 10-kw Photovoltaic Array, Configuration IIII: This page displays the flow of power from the photovoltaic arrays to the electrolyzers. Then, hydrogen output flows from the electrolyzers to the hydrogen compressors to the hydrogen storage tanks to the hydrogen energy center. Then, power flows from the hydrogen energy center to the electrical transformer to the utility pole.

Text boxes describe each component of the system (see page 2 write-up for text box content).