building alternative energy generation services; construction of power plants; construction and repair of power generating plants; management of electricity charging station for charging batteries; maintenance and repair of hydrogen gas charger; installation, maintenance and repair of hydrogen gas charger; installation of hydrogen gas charger; operation of Hydrogen car charging station; vehicle battery charging; new regeneration energy factory construction; new regeneration energy factory construction including sunlight generation and wind power; installation, maintenance, and repair of compressed natural gas chargers; construction of energy efficient buildings and structures; construction, erection, installation, repair, renovation, servicing, maintenance and dismantling of fuel cell power plants; maintenance and repair of fuel cells; installation, maintenance and repair of fuel cells; installation services for fuel cells for others; installation of fuel cells; repair of fuel cell; automobile battery charging through mobile electricity charging station