{"title":"GoodWe","description":null,"products":[{"product_id":"sitovy-trifazovy-stridac-goodwe-gw4000-sdt-20-4kwh-nzu-2026","title":"GoodWe GW4000-SDT-20 three-phase grid-connected inverter, 4 kWh, NZÚ 2026","description":"The GoodWe GW4000-SDT-20 three-phase grid-tied inverter, with an output of 4 kW, from the popular SDT G2 Plus+ range, is exactly the workhorse you’re looking for. It boasts superb efficiency and clever control features that’ll help you get the most out of your solar system.\u003cbr\/\u003e\u003cbr\/\u003eKey features:\nInverter type: Three-phase grid-connected inverter (On-grid).\nPower output: 4 kW (with a very welcome bonus – it can generate up to 10% more power than its rated output!).\u003cbr\/\u003eMPPT: 2 independent inputs.\nSmart monitoring: Offers 24-hour consumption and load monitoring thanks to the GoodWe HK3000 system.\u003cbr\/\u003e\u003cbr\/\u003eFully compatible with the ‘Nová zelená úsporám Light’ grant scheme\n \n- The inverter fully complies with the technical and legislative requirements of the ‘Nová zelená úsporám Light’ scheme for sub-category C.3 — Photovoltaic system with water heating. Installation companies can confidently use it as a key component of installations eligible for a grant of up to 120,000 CZK. For the PV system as a whole to be eligible for the grant, the complete installation must meet the following parameters:\u003cbr\/\u003e- Three-phase connection and power output: The grant scheme strictly requires a three-phase connection and a minimum installed power output of 3 kWp from the PV panels. The GW4000-SDT-20 inverter reliably meets this connection requirement.\u003cbr\/\u003e- Regulatory certification: Binding guidelines require that the installed inverter complies with the distribution system operator’s requirements and the EN 50549-1:2019 standard. The GoodWe GW4000-SDT-20 fully complies with this standard for parallel connection.\n- Water heating requirements: The system must provide storage heating in a water heater with a minimum capacity of 190 litres.\u003cbr\/\u003e- Backup bivalent heating source: A bivalent heating source must be automatically connected to the system for periods when solar energy does not reach the levels required to heat the water to the set temperature.\u003cbr\/\u003e- Protection against scalding: The installed hot-water system must include mechanical or electronic protection against scalding from hot water in the storage tank.\u003cbr\/\u003e- Qualified installation: In accordance with the subsidy rules, the installation must be carried out exclusively by a contractor authorised under Section 10d of Act No. 406\/2000 Coll., on energy management.\n\nKey parameters:\u003cbr\/\u003eInput current of 16 A at the MPPT — guarantees full compatibility with the next generation of high-performance 400W+ solar panels.\u003cbr\/\u003ePower output of 4,000 W with 110% overload capacity — the inverter allows a maximum AC power output of up to 4,400 W to effectively cover energy peaks.\u003cbr\/\u003e2× independent MPP trackers — minimises losses when different parts of the roof receive varying levels of sunlight or in the event of partial shading.\u003cbr\/\u003eWide operating range of 180–850 V — the system starts up more quickly in the morning and extends the total generation time.\u003cbr\/\u003eCompletely fanless — cooling is provided by a robust passive heat sink, keeping noise levels consistently below 34 dB.\u003cbr\/\u003eBuilt-in Type III surge protection — comprehensive protection for both the AC and DC sides without the need to immediately install costly external boxes (Type II available as an optional extra).Full PPDS P4 certification — the inverter is fully certified and tested by the EG.D testing laboratory, ensuring trouble-free inspection and approval of your PV system.\u003cbr\/\u003eOutdoor installation thanks to IP65 rating — moisture and dust do not pose a threat to the electronics; installation is possible in a plant room or on a building façade.\u003cbr\/\u003e\u003cbr\/\u003eTechnical specifications:\nMax. DC input power: 6,000 W — Sufficient headroom for the desired oversizing of solar panels.\u003cbr\/\u003eRated AC power: 4,000 W — A stable output power value.\nMax. AC apparent power: 4,400 VA — The unit utilises 110% overload tolerance during short power peaks.\u003cbr\/\u003eInverter topology: Non-isolated (transformerless) — Enables smaller dimensions, lower weight and minimal heat loss.\u003cbr\/\u003eProtection rating: IP65 — Robust sealing against dust and water ingress.\nMax. DC voltage: 1,000 V — Rated for longer strings of modules.\u003cbr\/\u003eMax. input current per MPPT: 16 A — Fully adequate for today’s high-performance silicon panels on the market.\nMax. short-circuit current per MPPT: 20.0 A — Safety margin for peak array current surges.\u003cbr\/\u003eMPPT operating range: 180–850 V — The low-voltage threshold captures the first rays of morning sunlight and makes effective use of late-afternoon light.\u003cbr\/\u003eNumber of MPPT channels: 2 — Maximum power tracking split across two asymmetrical installations on the building.\u003cbr\/\u003eRated output voltage: 400 V, 3L\/N\/PE — Phase-symmetrical distribution.\nMaximum efficiency: 98.2% — Operational losses account for only a fraction of the total electricity generated.\u003cbr\/\u003eNoise level: \u003c 34 dB — Natural airflow operates completely silently.\nDimensions: 354 × 433 × 147 mm — The wall-mounted design is suitable for narrow house distribution boards.\u003cbr\/\u003eWeight: 15 kg — Easy to mount on the supplied rail without the need for winches or hoists.\u003cbr\/\u003eCommunication and interfaces: Wi-Fi, RS485 (LAN \/ 4G as optional accessories) — Easy integration into the cloud.","brand":"GoodWe","offers":[{"title":"Default Title","offer_id":54817469432146,"sku":"04230727","price":10999.0,"currency_code":"CZK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/9624\/1490\/files\/04230727.jpg?v=1790173073"}],"url":"https:\/\/tipa.eu\/en-hu\/collections\/brand-goodwe.oembed","provider":"TIPA","version":"1.0","type":"link"}