We develop power devices for the conversion of energy from renewable sources (DC / DC converter and DC / AC inverter), control circuits for energy management in lead-acid electrochemical batteries, Lithium ions and LiFePO4, lamps for lighting roads with related control circuits for power LEDs (LED drivers). We also deal with the development of Web applications or Cloud services for remote control, in particular the platform for controlling photovoltaic inverters, data-loggers and remote control of street lighting lamps.