About Us

MITHRAS MTR Holding Zrt. is the energy holding company of the MITHRAS Group. Through its four project companies, it owns and operates METÁR-subsidized solar power plants at 15 locations in Hungary, as well as energy storage facilities operating under MAVIR’s METÁROLÓ program, and is building market-based energy storage facilities alongside its solar power plants. We manage these assets—from investment through daily operations—within the group.

01 METÁR Solar Power Plants

Our industrial-scale solar power plants generate electricity over a 15-year METÁR subsidy period, providing predictable, long-term revenue.

02 METÁROLÓ Energy Storage Systems

Our five battery storage systems have been available to MAVIR since April 2026 and help maintain the balance of the power grid.

03 Market-Based Energy Storage Systems

We are building market energy storage systems alongside our solar power plants, which sell the generated electricity flexibly, in line with demand.

Our Project Companies

Salix Alfa Solar Kft.

Kiskunfélegyháza

0.72 MWp · METÁR Solar Power Plant

Salix Beta Solar Kft.

Kiskunfélegyháza

0.72 MWp · METÁR Solar Power Plant

Salix Energy Alfa Ltd.

Kiskunhalas, Békés, Nagykőrös

6.97 MWp · METÁR Solar Power Plant 11.62 MWh · METÁROLÓ Energy Storage Facility

Helionergy Delta Kft.

Kiskőrös, Nagykőrös, Hódmezővásárhely, Mátészalka, Apostag, Nyírmeggyes

9.64 MWp · METÁR Solar Power Plant 18.27 MWh · market energy storage

Salix Alfa Solar Kft.

Kiskunfélegyháza

0.72 MWp · METÁR Solar Power Plant

Salix Beta Solar Kft.

Kiskunfélegyháza

0.72 MWp · METÁR Solar Power Plant

Salix Energy Alfa Ltd.

Kiskunhalas, Békés, Nagykőrös

6.97 MWp · METÁR Solar Power Plant 11.62 MWh · METÁROLÓ Energy Storage Facility

Helionergy Delta Kft.

Kiskőrös, Nagykőrös, Hódmezővásárhely, Mátészalka, Apostag, Nyírmeggyes

9.64 MWp · METÁR Solar Power Plant 18.27 MWh · market energy storage

Grants

Our energy storage projects were implemented with funding from the Recovery and Resilience Facility (RRF).
Funded Projects