Thank you Killian Daly for bringing this important letter to the community. The march to #TrueZero continues at pace. Certainty around the 3-pillars is critical for this. Ensuring that we are incentivising and producing genuinely clean energy is critical and where #timematching becomes so essential.
Extraordinary letter in support for 3-pillar hourly matching by 66 members of the US Congress to ensure the 45v Tax Credit leads to truly clean hydrogen production. Senators Bernie Sanders, Elizabeth Warren and Sheldon Whitehouse and Representative Alexandria Ocasio-Cortez amongst many others. Over a gigaton of CO2 (more than French and German annual total's combined) is on the line over the period of the credit if the rules go wrong and the pillars fall. We're doing our best to make sure they don't. On loosening temporal matching requirements, the letter hits the nail on the head - monthly, weekly etc are all way off as, in effect, they let clean hydrogen be “solar-powered” all night. 700 MMT CO2 is the emission cost along with a crippling of the high-tech US flexible electrolyzer sector. "Allowing electrolyzer projects that commence construction prior to 2028 to qualify through annual matching in perpetuity would increase cumulative emissions by nearly 700 MMT of CO2e through the duration of the tax credit. Monthly matching is similarly a poor substitute for hourly matching. Even weekly matching fails to safeguard against indirect emissions remotely, as well as hourly matching, as the key consideration is electrolyzers’ ability to capture intraday variations in renewable output, like the sun setting each night and rising each morning. Hourly matching is critical to minimize emissions from electrolytic hydrogen and to incentivize the deployment of flexible electrolyzers. Low-tech alkaline electrolyzers are unable to ramp up or down to match the availability of clean electricity—a trait that will be essential to electrolyzers’ ability to continue producing competitively-priced hydrogen after subsidies expire. While these electolyzers are cheap, they are ill-suited to producing truly clean hydrogen and are largely imported from China. Conversely, the U.S. leads the way in high-tech electrolyzers, such as proton exchange membrane and more flexible alkaline electrolyzer. These technologies are better able to respond to the variability of renewables and produce truly clean hydrogen, but they require hourly matching to be economic over Chinese alkaline electrolyzer." Letter: https://lnkd.in/eRv4pyQz