Parus Electro LLC (a part of Rosatom group) created a prototype of the first Russian string inverter, a device that converts the direct current generated by solar panels into alternating current for safe and efficient transmission of energy to consumers through power grids.
The string inverter prototype makes energy generation more stable in winter or when it is cloudy and increases the total number of generation hours throughout the day. The new device can operate in a wide temperature range from -50°C to +65°C and is capable of ensuring stable voltage even in remote areas. The string inverter is suitable both for industrial ground mounted large-scale and small solar power plants on rooftops and supports adaptive reactive power management customised for a given grid operator and integration with storage devices.
Moreover, itis distinct in its module architecture, the main advantage of which is a possibility to change the power supply module without dismantling all equipment. Such design reduces maintenance and repair time from dozens of hours to a few minutes and lowers energy generation losses. A new inverter has an efficiency of 98.3%. It can operate with storage devices in a grid or hybrid mode and withstand various climate conditions.
With components over 90% Russian, Parus Electro will deploy the production at its own facilities. It is planned to begin serial production in 2026. Russian companies successfully deliver development projects and pioneer innovative solutions offering them to international companies. The reactor vessel produced by Rosatom was installed at Unit 1 of El-Dabaa Nuclear Power Plant in the Arab Republic of Egypt. The groundwork is being laid for the commencement of full-scale construction of a 200 MW solar power plant in Mali under Rosatom’s support. Also, the first of four Russian test stands has already arrived at the construction site of the International Thermonuclear Experimental Reactor (ITER) in southern France.
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