This is the 18429th most frequent Russian word.
энергосистемы
"Энергосистемы" translates to "energy systems," referring to interconnected networks for generating, transmitting, and distributing energy.
In this sentence, 'энергосистемы' refers to the infrastructure that generates and distributes electricity.
Энергосистемы нашей страны обеспечивают электричеством миллионы домов.
The power systems of our country supply electricity to millions of homes.
Here, 'энергосистемы' is used in a singular form to denote the overall electrical energy system of the country or region.
Развитие энергосистемы является ключевым фактором экономического роста.
The development of the power system is a key factor in economic growth.
'Энергосистемы' in this case refers to multiple regional electric power systems, showcasing its plural usage.