Simplify the following text for a Grade 9 native English-speaking person.
Original: In addition to this pure hydrogen type , there are hydrocarbon fuels for fuel cells , including diesel , methanol ( see : direct-methanol fuel cells and indirect methanol fuel cells ) and chemical hydrides .
Simplified: Methanol fuel cells are used by reacting methanol electrochemistrically . This type of fuel cell is a better choice for simpler system .