Browse all SMARTWATT solar inverter models. 7 inverters available.
SMARTWATT is a Russian power-equipment brand owned by ENERGON, a supplier of industrial batteries that has worked in the Russian market for more than 25 years. The brand itself has operated since 2020 and covers uninterruptible power supplies, voltage stabilizers, EV chargers, lithium storage and inverters. Its products are made under contract at large factories that also build for international brands, and they are sold mainly in Russia.
Three families cover solar. The INV ECO II off-grid inverter-chargers run from 1.5 kW on a 12 V battery to 5.5 kW on 48 V, with the battery voltage in the model code (INV ECO II 5.5-48M). INV HYBRID II 6.2-48M and the HYBRID 5K add grid support, and the GRID models, at 3 and 5 kW, are single-phase grid-tied string inverters without a battery.
One Russian supplier for backup power, from a UPS to a solar inverter and battery, with local service. Detailed datasheets are harder to find than for large Chinese brands, so confirm the exact limits before wiring.
The INV ECO II and INV HYBRID II allow 500 V, which suits up to ten 41 V panels once a frosty morning is allowed for, and the GRID G2 3K takes 600 V. The HYBRID 5K 48V is the outlier: it stops at 145 V and tracks between 60 and 115 V, so with 41 V panels exactly three in series is the only length that stays inside the window year-round.
Current varies as well, from 11 A per input on the GRID 5K to 27 A on the INV HYBRID II. The string calculator checks your panels against these voltage and current limits.