2017-11-03 socalgas power-to-gas presentation · 11/3/2017 · microsoft powerpoint - 2017-11-03...
TRANSCRIPT
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Innovation
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Achieving California's Renewable Energy GoalsPOWER-TO-GAS
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RESEARCH, DEVELOPMENT, & DEMONSTRATION
SoCalGas RD&D
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Low Carbon Resources RD&D
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ACHIEVING CALIFORNIA’S RENEWABLE ENERGY GOALS
Power-to-Gas
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Renewable Energy Goals
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33% by 202050% by 2030
100% by 2050?
California is a Solar State:• 32% of California’s renewable
power came from solar• 460 of the 490MW of pending
renewable projects are solarSource: California Energy Commission – Tracking Progress, 2016
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Supply / Demand Mismatch
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The Famous California “Duck Curve”
Over-generation can lead to grid congestion or “curtailment”
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Curtailment of Renewable Power is Here Today
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Source: California Independent System Operator (CAISO)
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CA Needs Energy Storage
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What is Power-to-Gas (P2G)
excessrenewable
energygoes throughelectrolysis
which splits water molecules to produce hydrogen
hydrogen & carbon combine through
methanation
methane can be stored or transported on the
pipeline
hydrogen can alsobe stored directly
in the pipeline
» P2G is the process of converting excess renewable energy to a gaseous fuel (hydrogen or methane).
» P2G allows for storing large amounts of energy for long durations.
» P2G can help California reach its Renewable Energy goals.
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P2G Provides Seasonal Storage
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P2G Creates Flexibility
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GERMANY’S RENEWABLE ENERGY STORAGE
Potential for electrolysis is estimated at up to
170GWwhich could power
114 million homes.
A vision of what’s possibleGERMANY
Source: Commercialisation of Energy Storage in Europe, 2014
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OUR WORK ON P2GSoCalGas RD&D
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» Simulation shows dramatic increase in solar utilization
Today:3.5%
Renewable Energy Integration
With P2G:35.31%
Renewable Energy Integration
UC Irvine P2G Simulation
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» 60kW Proton OnSite Electrolyzer» On-campus Pipeline Blending» NGCC Power Production
UC Irvine P2G Demo
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Biomethanation
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ArchaeaWater
Electrolysis
Renewable Hydrogen
CO2
CH4
Renewable Methane
Carbon Dioxide
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Co-electrolysis Cell
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CH4