Alt-Shift: As Alternatives to Alternatives, RNG and Fuel Cell Tech Markets Come Clearer, Closer
by Jim Lane (Biofuels Digest) In California, on the final day of California’s 2018 legislative session, a bill sponsored by the Coalition for Renewable Natural Gas that would pave the way for a state renewable natural gas procurement program was approved by the Legislature, passing 29-10 in its reconciliation in the Senate.
It’s material progress in a key market for a leading alternative to…ahem, conventional alternatives. The Coalition advises that “SB 1440 (Hueso) authorizes the California Public Utilities Commission (CPUC), in consultation with the Air Resources Board, to adopt a biomethane (aka renewable natural gas or RNG) procurement program that would benefit ratepayers, is cost-effective, and advances the state’s environmental and energy policies.”
The Coalition’s other key bill this year, AB 3187 (Grayson), also passed. The bill requires the CPUC to open a proceeding to consider options to promote the in-state production and distribution of biomethane, including recovery in rates of the costs of interconnection infrastructure investments, by no later than July 1, 2019. It was unanimously approved (38-0) by the Senate on August 27 after passing the Assembly earlier this year. Both bills headed to Governor Brown for signature.
Meanwhile, a hydrogen breakthrough
…
At present, electrodes must be coated with precious, expensive metals, most notably platinum.
But Stanford graduate student Xinjian Shi may have found a solution: a synthesis method that turns cheap, abundant metal sulfides into powerful electrodes for hydrogen evolution reactions. He described the process in a recent study in Energy and Environmental Science.
…
But their cobalt-doped tungsten disulfide electrodes still fell short of platinum’s performance. The researchers now plan to apply their process to other metal sulfides to find the electrode that most closely matches platinum.
The Search for Carbon Negative at Gigatonne scale
For some thought leadership on the topic, let’s turn to former CIA director and MIT chemistry department chairman John Deutch of MIT and former ARPA-E head Arun Majumdar, now co-helming the Stanford Precourt Institute for Energy. The pair published a commentary in Joule on R&D that could lead to negative emissions at gigatonne scale.
Both spoke with the MIT Energy Initiative.
Deutch: “Two pathways which I think have attracted the most attention from serious scientists has been either the water splitting from the sun—splitting water into hydrogen and oxygen—the other one is artificial photosynthesis. Both of those would indeed be a pathway that avoids using energy that has carbon emissions associated. It would be renewable and clean energy. Those have been looked at for a very long time. Quite a few decades.”
Majumdar: “A lot of people think hydrogen is for fuel cells or transportation. Actually, we think that may not be the biggest application of hydrogen, because if you want to do something with CO2 to make a hydrocarbon, whether it’s in a fuel or chemicals or plastic, you need hydrogen. And that hydrogen can come from water. To achieve water splitting, you need energy and it ought be carbon-free energy. This is most likely renewable energy because it is becoming the most inexpensive. For hydrogen production to be cost-effective, the cost of renewable energy is a boundary condition and we see that boundary condition to be reasonably inexpensive to produce hydrogen cost-effectively.* While the boundary condition is necessary, it’s really not sufficient. What we emphasized in our report is there are several pathways to produce hydrogen.” READ MORE
Rapid flame doping of Co to WS2 for efficient hydrogen evolution (Energy and Environmental Science)
