Combining different energy sources and uses by Joe Cargnelli
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The document discusses power-to-gas as a viable utility-scale energy storage solution using electrolysis to convert surplus electricity into hydrogen gas. It addresses common myths about the efficiency and technological progress of electrolysis. Examples are given of hydrogen being distributed and used in existing natural gas pipelines in places like Hong Kong, Hawaii, and parts of Europe. The document concludes that electrolysis is a bridging technology between power and gas grids to store large amounts of surplus electricity and that significant technology progress has been made, so no breakthroughs are required for market entry, though policy barriers still exist.
Combining different energy sources and uses by Joe Cargnelli
- 1. Power-to-Gas: We’re Ready Joseph Cargnelli Chief Technology Officer Hydrogenics Corporation June 8th, 2012 | Toronto, Canada Future of Energy Summit
- 2. (+) DC Power (-) The Bridging Technology • An electrolyzer is an electro-chemical conversion device that utilizes an electric current to separate water into hydrogen and oxygen. • An electrolyzer stack has no moving parts, produces no harmful emissions and operates at high efficiencies. • Hydrogenics is the worldwide leader in water electrolysis. 2
- 3. Myth #1: Making Hydrogen is Very Inefficient e- 1 m3 contains H2 and requires 1 m3 of Water 111 kg of Hydrogen 5 MWhr of energy to convert with an electrolyzer energy H2 contains 111 kg of Hydrogen 4.3 MWhr of energy (HHV) 3
- 4. Myth #2: Not Much Technology Progress 70 cm = 50 cm 1MW Advanced 140 cm Electrolysis 49 cm 1MW of Commercial Electrolysis 4
- 5. Highly Dynamic Technology Hydrogenics’ HySTAT TM electrolyzer provided frequency regulation in Ontario by responding to real-time frequency regulation signals from the IESO on a second-by-second basis. 5
- 6. Myth #3: Hydrogen Can’t be Distributed in Existing Pipelines Hong Kong and China Gas Company has 3000km of pipeline, serves 1.6 million customers with ~49% hydrogen In Hawaii, The Gas Company has 1,770km of pipeline with ~11% hydrogen In Europe, France, Germany, Austria and Switzerland have set current limits of allowable hydrogen at 5% by volume Small quantities of hydrogen are technically manageable in gas pipelines. 6
- 7. Hydrogenics wins order for 'Power-to-Gas‘ energy storage facility in Germany Courtesy of E.ON AG 7
- 8. Key Messages Problem: Limited options to store large amounts of surplus electricity Solution: “Power-to-Gas” is a viable utility-scale energy storage solution Technology: Electrolysis is the bridge between power and gas grids Achievements: Significant technology progress has been made Market Readiness: No breakthrough for market entry is required Barriers: Policy impediments to monetize value Courtesy of E.ON AG 8