From the article:
Back-up generators and ships’ engines could benefit too. “There is a lot of pressure on the shipping companies to reduce the pollution from their ships,” says Ghosh. “One shipping company we are talking to is interested in retrofitting their existing engines with laser ignition.”
The fuel component for ships has changed as of January 1, 2015.
No more N6, (with certain exceptions) no more IFO 320/280 fuel...
Ships don’t use diesel engines?