Ex-Codexis CEO unveils startup around enzymes to convert natural gas

Alan Shaw of Calysta Energy.

Alan Shaw, the effusive former head of enzyme company Codexis, has reemerged as CEO of San Francisco-based startup Calysta Energy.

And, spoiler alert, he’s got some new freedom and incentive to talk about why he thinks biofuels companies are failing – and why Calysta is taking a different approach.