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Apparatus to reduce the cost of renewable hydrogen fuel generation by electrolysis using combined solar and grid power

An electrolyzer and utility power technology, applied in electrolysis components, electrolysis process, single-network parallel feeding arrangement, etc., can solve problems such as lack of economy, inability to use electrolyzers, and increase in size and cost of electrolyzers

Inactive Publication Date: 2008-10-01
GM GLOBAL TECH OPERATIONS LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of economy is due to the fact that the average solar power produced by a photovoltaic system at a fixed angle is only about six hours per day, which leaves 18 hours per day during which solar energy is used to produce not enough electricity to produce hydrogen and cannot take advantage of electrolyzers
Therefore, the electrolyzer is idle most of the time, which increases the size and cost of the electrolyzer needed to achieve the desired daily fuel production rate
Furthermore, the electrolyzer is currently the most expensive part of the hydrogen generator system

Method used

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  • Apparatus to reduce the cost of renewable hydrogen fuel generation by electrolysis using combined solar and grid power
  • Apparatus to reduce the cost of renewable hydrogen fuel generation by electrolysis using combined solar and grid power
  • Apparatus to reduce the cost of renewable hydrogen fuel generation by electrolysis using combined solar and grid power

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Embodiment Construction

[0011] The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention and its application or uses.

[0012] FIG. 1 is a block diagram of a product 10 including a power control system 12 . Power control system 12 combines at least one of photovoltaic power (DC current) from photovoltaic array 14 or AC power from utility power grid 16 to power electrolyzer 18 . Photovoltaic array 14 may be any suitable photovoltaic array including, but not limited to, photovoltaic modules based on crystalline silicon, amorphous silicon, cadmium telluride, and copper indium diselenide. These photovoltaic modules may include, but are not limited to, the Sharp NT-S5E1U module manufactured by Sharp Electronics Corp. Huntington Beach, California and available from AAPS Alternative Power Systems, Carlsbad, California, USA; manufactured by SanyoSolar (Sanyo Electric Co., Ltd, part of Japan) as the SanyoHIP-190BA3 module available from Altern...

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Abstract

One embodiment of the invention includes a PV array and an electrolyzer operatively connected together and each operatively connected to a utility power grid so that electricity produced by the PV array is selectively delivered to the utility power grid and the electrolyzer. The resulting process increases the efficiency of the solar-hydrogen production process, and results in lower-cost renewable hydrogen.

Description

technical field [0001] The field to which the present disclosure is primarily concerned includes the production of hydrogen by electrolyzers, and more particularly, the reduction of the production costs of renewable hydrogen fuels. Background technique [0002] Hydrogen generating devices use electricity to produce hydrogen (and oxygen) by electrolyzing water in an electrolyzer. The hydrogen produced is stored for use as fuel, which can be used in fuel cells and internal combustion engines. Oxygen is vented to the atmosphere. The electrolyzer can be powered by solar energy. Hydrogen generated from solar energy through photovoltaic electrolyzers (PV electrolyzers) is a renewable and environmentally friendly energy source. Converting the U.S. fuel supply to renewable energy is essential for sustainable transportation, sustainable economic growth, lower greenhouse gas emissions, and national energy security by displacing polluting fossil fuel imports from unstable overseas r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04H02J3/38H02J3/46
CPCY02E70/10C25B15/00H02J3/382Y02E10/563H02J3/383Y02E60/366C25B1/04H02J2300/24H02J3/381Y02E10/56Y02E60/36H02J3/46H02J2300/30C25B1/02
Inventor T·L·吉布森N·A·凯利
Owner GM GLOBAL TECH OPERATIONS LLC
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