AC/DC power supply apparatus; electric power distribution apparatus; apparatus and instruments for regulating energy; energy switching apparatus and instruments; electric power storage apparatus and instruments; alkaline batteries; high voltage batteries; accumulators for solar energy; batteries for electric vehicles; battery chargers; electric charging cables; fuel cells; computer software for power supply systems; data processing equipment and apparatus; photovoltaic installations for generating electricity [photovoltaic power plants]; photovoltaic modules; software for home automation management; household solar batteries; inverters (electricity).