As renewable sources of energy, such as wind and solar photovoltaics, become increasingly more vital to support global carbon footprint reduction goals, innovative energy solutions are required to match unpredictable supply and demand. Power-to-Gas (P2G) is the process of converting surplus renewable energy into hydrogen gas through PEM electrolysis technology. The hydrogen can then be injected into the natural gas grid. In doing so, the hydrogen can displace natural gas, reducing greenhouse gas emissions and reliance on high-carbon fuels. P2G is an effective means of transitioning to a ‘greener’ natural gas mix.
P2G also supports the anaerobic digestion processes, where microorganisms are broken-down to organic matter to produce fuels. With the addition of hydrogen, the process (otherwise referred to as methanation) greatly improves conversion rates of carbon dioxide (CO2) to biomethane (from 60% to 95%). Hydrogen generated via PEM water electrolysis technology is key to transforming surplus electricity generated from renewables into storable methane that can be utilized within the traditional natural gas grid.
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