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    Fair price
    Fair price
    We offer competitive prices with an emphasis on quality and transparency
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    Fast delivery
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    Most popular
    Solis S6-EH3P10K-H-EU
    Official distributor
    Solis S6-EH3P10K-H-EU
    In stock (9 pcs)
    €1 427,51 incl. VAT
    €1 160,58
    23002150052
    Dyness Tower Pro TP11
    Dyness Tower Pro TP11
    In stock (2 pcs)
    €3 142,65 incl. VAT
    €2 555
    DYNESS-TOWER-PRO-TP11
    ET(ETPlus+) 33
    Goodwe GW10K-ET Plus+
    On request
    €0 incl. VAT
    €0
    GW10K-ET
    ET(ETPlus+) 33
    Sale
    Goodwe GW8K-ET Plus+
    On request
    €0 incl. VAT
    €0
    GW8K-ET
    Dyness Tower T17
    FREEFREE €3 530 –20 %
    Dyness Tower T17
    In stock (>10 pcs)
    €3 467,37 incl. VAT
    €2 819
    DYNESS-TOWER-T17
    Tigo TS4-A-O
    Tigo TS4-A-O
    In stock (>10 pcs)
    €39,36 incl. VAT
    €32
    462-01252-32
    15K 1
    FREEFREE €5 499 –100 %
    Soluna 15K HV
    On request
    €0 incl. VAT
    €0
    SOLUNA-HV-15K
    Sale
    ET(ETPlus+) 33
    Sale
    Goodwe GW8K-ET Plus+
    On request
    €0 incl. VAT
    €0
    GW8K-ET
    ZENCAR Model W Pro (Basic, Type 2, 16A, 5m)
    Sale
    €324,39 –25 %
    ZENCAR Model W Pro (Basic, Type 2, 16A, 5m)
    In stock (1 pcs)
    €299 incl. VAT
    €243,09
    ZENCAR_W-PRO_T2_16A_5M_3P_BASIC
    New
    Huawei DDSU666-H
    Huawei DDSU666-H Smart Power Sensor
    In external warehouse (>10 pcs)
    €92,87 incl. VAT
    €75,50
    DDSU666-H
    Victron SmartSolar MPPT 100/15
    Victron SmartSolar MPPT 100/15
    In external warehouse (>10 pcs)
    €80,59 incl. VAT
    €65,52
    VICTRON-SRTSOLAR-100-15
    Victron BlueSolar MPPT 150/70-MC4
    Victron BlueSolar MPPT 150/70-MC4
    On request
    €0 incl. VAT
    €0
    VICTRON-MPPT-150-70-MC4
    Victron SmartSolar MPPT 250/60-Tr
    Victron SmartSolar MPPT 250/60-Tr
    In external warehouse (>10 pcs)
    €425,01 incl. VAT
    €345,54
    VICTRON-SRTSOLAR-250-60-TR
    Huawei DTSU666-HW Smart Power Sensor
    Huawei DTSU666-HW Smart Power Sensor
    In external warehouse (>10 pcs)
    €235,95 incl. VAT
    €191,83
    DTSU666-HW
    Victron Shunt 2000A
    Victron Shunt 2000A
    On request
    €0 incl. VAT
    €0
    VICTRON-SHUNT-2000A
    VICTRON ORION XS IP65 12 12 50 DCDC
    Victron Non Isolated DC-DC Charger Orion-Xs 12/12-50
    On request
    €0 incl. VAT
    €0
    VICTRON-ORION-XS-IP65-12-12-50-DCDC
    Victron SmartShunt 2000A
    Victron SmartShunt 2000A
    On request
    €0 incl. VAT
    €0
    VICTRON-SMARTSHUNT-2000A-50MV
    Victron Isolated DC-DC Converter Orion-Tr 48/12-9
    Victron Isolated DC-DC Converter Orion-Tr 48/12-9
    On request
    €0 incl. VAT
    €0
    VICTRON-IS-DCDC-ORION-TR-48-12-9
    Victron Energy Meter EM24 Ethernet
    Victron Energy Meter EM24 Ethernet
    In external warehouse (>10 pcs)
    €102,66 incl. VAT
    €83,46
    VICTRON-ENERGY-METER-EM24-ETH
    Victron VE.Direct Bluetooth Smart dongle
    Victron VE.Direct Bluetooth Smart dongle
    In external warehouse (>10 pcs)
    €40,29 incl. VAT
    €32,76
    VICTRON-BLUETOOTH-SMART-DONGLE
    VICTRON IS DCDC ORION TR 24 12 15
    Victron Isolated DC-DC Converter Orion-Tr 24/12-15
    On request
    €0 incl. VAT
    €0
    VICTRON-IS-DCDC-ORION-TR-24-12-15
    New Articles
    ONSA Plus at the First Green Energy Fair in Zagreb
    ONSA Plus at the First Green Energy Fair in Zagreb
    The first edition of the Green Energy Fair took place at Arena Zagreb (29-30 October 2025), and ONSA Plus was proud to participate among the regional renewable-energy community....
    Read article
    ONSA Plus at Smart Energy Forum Prague 2025
    ONSA Plus at Smart Energy Forum Prague 2025
    ONSA Plus participated in this year’s Smart Energy Forum in Prague, one of Central Europe’s premier events dedicated to solar energy, energy storage, and smart...
    Read article
    ONSA Plus partners with Solis to strengthen PV inverter distribution in Central Europe
    ONSA Plus partners with Solis to strengthen PV inverter distribution in Central Europe
    ONSA Plus, a Slovak renewable energy solutions provider, has announced a new partnership with Solis, one of the world’s largest inverter manufacturers, to distribute Solis’...
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    About us
    Description

    Photovoltaic power plants for companies with high consumption

    We’ll design the optimal photovoltaic solution for your energy-intensive operation and handle all the paperwork, including subsidies. We know how to do it right. So it will keep saving you money even in 20 years

    • We’ll reduce your electricity costs
    • We’ll provide a stable backup source
    • We’ll increase cost predictability
    More information

    Latest discussion

    OP Avatar of author

    Corsair 18AWG Cable for 8pin to dual 6+2pin power supply

    ONSA Plus | 22.03.2023 |
    Corsair 18AWG Kábel pre zdroj 8pin na dual 6+2pin
    Dobrý deň, nie, nejedná sa o origninál. Kábel má však rovnaký pinout (type 4), teda pasuje na zdroj a dá sa bezpečne používať. Je dôležité overiť kompatibilitu s Vaším zdrojom na stránkach výrobcu.

    Latest rating

    Fronius Ohmpilot 9.0-3

    Fronius Ohmpilot 9.0-3

    The product rating is 5 out of 5 stars. Marian Zavadský | 03.09.2025
    spoľahlivo funguje už viac ako 4 roky. v nastaveniach sa da krásne nastaviť podmienky. dobre funguje aj s 6x1kw špirálami, zapojenými paralérne. po zapojení si sám zmeria špirály. od marca do novembra mam dosť teplej vody ak nepoužívam bazén. menič najpr dobije baterie a potom dáva prebytky do akumulacky.
    10-capacitor GPU Riser 012

    10-capacitor GPU Riser 012

    The product rating is 5 out of 5 stars. 19.11.2022