Apparatus and instruments for conducting, switching, converting, storing, regulating or controlling the distribution or use of electricity and energy; photovoltaic installations for generating electricity, namely, photovoltaic systems that convert sunlight into electric and thermal energy; solar cells; circuit breakers and high-voltage, medium-voltage and low-voltage power switching installations; electrical distribution cabinets; electric switching installations; high-voltage direct current ...

(Based on Use in Commerce) Research in the field of hydrogen fuel cells