Research and development of photoelectric cells, inverters, electric converters, batteries; technology consultation services regarding photoelectric cells and systems; research and development of electric power converters, inverters, battery chargers for use in renewable energy systems; technology consultation services regarding power converters, inverters, battery chargers for use in renewable energy systems; scientific and industrial research relating to photovoltaic solar panels and thermal solar panels; technical consultancy relating to photovoltaic solar panels and thermal solar panels; research and development relating to renewable energy production; technical consulting relating to renewable energy production; technical consultation in the field of renewable energy, research and development in the field of renewable energy; technical consultation in the field of photovoltaic power generation; design of photovoltaic power generators, solar power generation installations; solar power system integration services; research and development of solar panel parts, devices; designing of solar batteries, solar cells; research and development of batteries, solar cells; analysis, assessment, monitoring and measuring services in the field of photovoltaic power generation plants; machine condition monitoring for maintenance purposes; maintenance of power system monitoring and control