Renewable Energy – Solutions for application in the communal energy infrastructure

30 | EXAMPLE PROJECTS
Tuva: Solar diesel hybrid system for remote villages
The autonomous photovoltaic-diesel hybrid system reliably supplies 7,000 residents with electrical energy.
A stable power supply improves living conditions in remote
villages, while solar energy reduces the consumption
of diesel fuel by generators. For these reasons,
the government of the Republic of Tuva decided to use
an autonomous photovoltaic-diesel hybrid system to
supply electricity to two villages in the Mongun-Taiga
district.
The Hevel Group installed solar power systems with a
total output of 550 kilowatts, battery systems with 710
kilowatt hours (kWh) of storage capacity, and diesel
generators. They reliably supply the 7,000 inhabitants
of the villages of Mugur-Aksy and Kyzyl-Khaya with
electrical energy around the clock.
The facilities went into operation in December 2019. In
2020, the Hevel group reported that the solar modules
generated over 750,000 kWh of electricity. One of the
two villages supplies itself exclusively with solar power
during the day, even in winter. The fuel requirement
for diesel generators has been reduced by 30 per cent,
thereby saving approximately 408 tonnes of CO 2 each
year.
The Hevel Group implemented the project with its own
financial resources within the framework of an energy
service contract. The electricity price for consumers
has remained stable. In the long-term, this model will
allow the region to reduce the subsidised cost of diesel
fuel supply.
Solar power plant with an output of 550 kilowatts.