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Innovation
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Achieving California's Renewable Energy Goals
RESEARCH, DEVELOPMENT, & DEMONSTRATION
SoCalGas RD&D
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POWER-TO-GAS Innovation SoCalGas RD&D RESEARCH, DEVELOPMENT, - - PDF document
POWER-TO-GAS Innovation SoCalGas RD&D RESEARCH, DEVELOPMENT, - - PDF document
Achieving California's Renewable Energy Goals 1 POWER-TO-GAS Innovation SoCalGas RD&D RESEARCH, DEVELOPMENT, & DEMONSTRATION 2 Low Carbon Resources RD&D 3 Power-to-Gas ACHIEVING CALIFORNIAS RENEWABLE ENERGY GOALS 4 Renew
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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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Renew able Energy Goals
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33% by 2020 50% 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 solar
Source: 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 Renew able Pow er 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 Pow er-to-Gas (P2G)
excess renewable energy goes through electrolysis which splits water molecules to produce hydrogen hydrogen & carbon combine through methanation methane can be stored
- r transported on the
pipeline
hydrogen can also be 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
170GW
which could power
114 million
homes.
A vision of what’s possible
GERMANY
Source: Commercialisation of Energy Storage in Europe, 2014
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OUR WORK ON P2G
SoCalGas 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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Archaea
Water Electrolysis Renewable Hydrogen
CO2 CH4
Renewable Methane Carbon Dioxide
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Co-electrolysis Cell
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CH4
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Innovation
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Matt Gregori
mgregori@semprautilities.com