Descripción
Growatt WIT 20K-HU – hybrid inverter 20 kW
Growatt WIT 20K-HU is a hybrid inverter rated at 20 kW, available at Growatt.tech. The battery-ready design lets you commission the inverter in grid-tied mode straight away and add low-voltage (LV) energy storage at any later point — without replacing the unit. The inverter comes with online monitoring and an IP66 enclosure for indoor and outdoor installation.
Growatt WIT 20K-HU combines proven Growatt electronics with straightforward operation — once connected to the ShinePhone app, it gives you full control over the PV installation. This product page gathers the complete information on the WIT 20K-HU model: how it works, how to size it, the compatible accessories and the full technical specification from the manufacturer’s datasheet. All parameters come from official Growatt documentation — we list them to make selection easier and to help you avoid costly mistakes at the design stage. If any questions remain after reading, our technical team will gladly help you select the inverter and the remaining components of the PV installation free of charge.
Comentario de un experto
“We recommend the Growatt WIT 20K-HU model as a dependable hybrid platform with room to add energy storage. It is a battery-ready design — the low-voltage (LV) battery can be added at any point, without replacing the inverter. When sizing the system, we pay attention to the correct battery voltage class, the number and length of the strings and the correct configuration of the backup supply — we are happy to review your design before purchase.”
— Equipo técnico de Growatt.tech
How the Growatt WIT 20K-HU works
Growatt WIT 20K-HU operates in hybrid mode: it stores surplus PV energy in a low-voltage (LV) battery and, when the grid fails, automatically switches key circuits to the emergency power supply (EPS). The generator input and the smart load function let you build a flexible system even where the grid is unstable.
Growatt WIT 20K-HU has 2 independent MPPT trackers, which lets you connect strings of different orientations and lengths and maintain a high yield even with partial roof shading. You follow the installation in real time in the ShinePhone app and the ShineServer portal — with fault alarms and production history.
A quién va dirigido este inversor
- Instalaciones trifásicas con almacenamiento de energía: viviendas, empresas y explotaciones agrícolas.
- Los prosumidores maximizan el autoconsumo: el almacenamiento de energía aumenta el autoconsumo y acorta el plazo de amortización.
- Inversores que planean una ampliación por fases: primero, la conexión a la red eléctrica; después, el almacenamiento de energía.
- Cualquier persona que necesite un suministro eléctrico de emergencia en caso de cortes en la red eléctrica.
Características y funciones principales
- 2 independent MPPT trackers — flexible string sizing and better yield under partial shading.
- Emergency power supply (backup) during grid outages
- Entrada del generador de CA
- Smart load function — controllable load output
- Parallel operation of multiple units
- Carcasa IP66: instalación en interiores y exteriores.
- Supervisión en línea: la aplicación ShinePhone y el portal ShineServer a través de Wi-Fi.
Baterías y accesorios compatibles
Growatt WIT 20K-HU works with low-voltage (LV) batteries: AXE 5.0L-C1, HOPE 14.3L-A1, HOPE 16LM-A1. Backup power is provided by the built-in EPS (backup) module. Browse the full energy storage range in our shop — we will help you match storage capacity to your consumption and installation size.
Elegir el sistema de almacenamiento de energía adecuado
Storage capacity is matched to daily energy consumption and the goal of the investment: to increase self-consumption, storage covering the evening load is usually enough, while genuine backup power calls for more capacity and discharge power. Growatt WIT 20K-HU lets you expand the storage in stages — start with one module and add more as your needs grow. Write to us at info@growatt.tech and we will size the storage for your installation.
Self-consumption and savings with the Growatt WIT 20K-HU
The more PV energy you use on site, the lower your electricity bills. As a hybrid inverter, Growatt WIT 20K-HU stores surplus energy from the panels in the battery and releases it in the evening instead of exporting it to the grid. Self-consumption rises, bills fall and the payback period of the installation shortens — and during a grid outage you still have an emergency power supply for key circuits.
WIT 20K-HU parameters in practice
A wide MPPT operating voltage range (150-850 V) makes string sizing easier and lets the installation start producing even in weaker sunlight. The permitted PV array power of up to 40.0 kWp leaves headroom for DC-side oversizing, which increases annual energy yield. High maximum efficiency (97.6%) means lower conversion losses and lower electricity bills.
The inverter comes in an IP66 enclosure, operates across a temperature range of -30°C … +60°C (>45°C derating), uses smart air cooling cooling, weighs 55 kg (dimensions 475×695×241 mm), runs quietly (≈≤50 (4-15K) / ≤55 (17-25K) dB). It is suitable for indoor and outdoor installation.
Instalación y funcionamiento
Growatt WIT 20K-HU is three-phase (230/400 V) and has an IP66 enclosure, so it can be mounted indoors and outdoors. Installation should be carried out by a qualified installer in line with the manufacturer’s manual and the local grid connection requirements. Once commissioned, the inverter reports to the ShinePhone app and the ShineServer portal — you get a remote view of production, consumption and the battery state of charge. The unit is covered by a European service warranty (10 years per manufacturer).
Datos técnicos clave
| Growatt WIT 20K-HU — specification | |
|---|---|
| Potencia nominal de CA | 20 kW |
| Tipo de inversor | inversor híbrido |
| Fases | trifásico (230/400 V) |
| Seguidores MPPT | 2 |
| Clase de batería | low-voltage (LV) |
| Baterías compatibles | AXE 5.0L-C1, HOPE 14.3L-A1, HOPE 16LM-A1 |
| Alimentación de emergencia | built-in EPS (backup) module |
| Max. PV array power | 40.0 kWp |
| Tensión máxima de CC | 1000 V |
| Rango de tensión del MPPT | 150-850 V |
| Tensión de arranque | 180 V |
| Corriente máxima de entrada por MPPT | 40 (4-8K, 15K, 17-25K) / 20 (10-12K) A |
| Corriente máxima de cortocircuito por MPPT | 50 (4-8K, 15K, 17-25K) / 25 (10-12K) A |
| Max. AC output current | 66.67A/33.33A |
| Red eléctrica de CA | 220V/380V, 230V/400V (4-15K); +240V/415V (17-25K); -15%~+10%; 50/60Hz, 45-55Hz/55-65Hz; 3P3W+PE/3P4W+PE (4-15K), 3P+PE/3P+N+PE (17-25K) |
| Máxima eficiencia | 97.6 % |
| Eficiencia europea | 97.0 % |
| Distorsión armónica total (THD) de la corriente de salida | < 3% |
| Rango de tensión de la batería | 40-60V (rated 51.2V) |
| Corriente máxima de la batería | 110-290 (4-15K, per model) / 420 (17-25K) A |
| Topología | Sin transformador |
| Refrigeración | Refrigeración inteligente por aire |
| Rango de temperaturas de funcionamiento | -30°C … +60°C (>45°C derating) |
| Noise level | ≤50 (4-15K) / ≤55 (17-25K) dB |
| Dimensions (W×H×D) | 475×695×241 mm |
| Peso | 55 kg |
| Protección contra la entrada de elementos | IP66 |
| Seguimiento | ShinePhone / ShineServer (Wi-Fi) |
| Código del fabricante | 99615 |
| Garantía | Garantía de servicio europea (10 años según el fabricante) |
Los parámetros eléctricos completos (tensiones y corrientes MPPT, rendimiento, dimensiones y peso) figuran en la ficha técnica del fabricante.
What sets the series apart — Growatt WIT 20K-HU
The WIT-HU series comprises three-phase hybrid inverters with an LV battery, generator input, black start and parallel operation — a platform for larger residential, agricultural and commercial installations.
What to check when selecting the Growatt WIT 20K-HU
When buying an inverter, the key is matching its power rating to the panel power and distributing the modules correctly across the MPPT trackers. Growatt WIT 20K-HU is three-phase (230/400 V) and has 2 independent MPPT trackers, so it pays to plan the number and length of the strings around the available operating voltages already at the design stage. If you are considering energy storage, pay attention to the correct battery voltage class and the compatible models listed above — a battery from the wrong class rules out the expansion. It is also worth planning the mounting location in advance (ventilation, Wi-Fi access for monitoring). If in doubt, send us your design — we will verify the selection free of charge before purchase.
Monitoring and the app — Growatt WIT 20K-HU
Growatt WIT 20K-HU works with the free ShinePhone app and the ShineServer portal. Once the inverter is connected to a Wi-Fi network, you get a constant remote view of energy production, current consumption, the battery state of charge and the history for any period. The app sends notifications about faults and drops in production, so the installer or the owner can react to issues quickly. For installers managing multiple sites, Growatt provides service accounts with a view of the whole inverter fleet from a single panel — convenient for maintaining installations across many customers. Remote monitoring also simplifies warranty handling: operating data makes diagnosis easier without a site visit.
Acerca de la marca Growatt
Growatt es uno de los mayores fabricantes mundiales de inversores fotovoltaicos y sistemas de almacenamiento de energía, con más de una década de presencia en el mercado fotovoltaico y que suministra equipos para instalaciones residenciales, comerciales e industriales en docenas de países. La marca destaca por su amplia gama de inversores —desde pequeñas unidades monofásicas, pasando por híbridos con almacenamiento de energía, hasta grandes unidades comerciales— y por el extenso ecosistema de monitorización ShinePhone/ShineServer.
¿Por qué comprar en Growatt.tech?
- Garantía de servicio europea (10 años según el fabricante).
- Precios mayoristas B2B: inicia sesión para ver los precios mayoristas.
- Asistencia técnica y asesoramiento: te ayudaremos a elegir el inversor, la batería y los accesorios adecuados. Consultas: info@growatt.tech.
Garantía y asistencia B2B
Growatt WIT 20K-HU is covered by a European service warranty (10 years per manufacturer). Installers and businesses see B2B trade prices after logging in — if you need a quote for a larger quantity or a complete inverter-plus-storage set, write to info@growatt.tech and we will prepare an offer.
Preguntas frecuentes
Does the Growatt WIT 20K-HU work with energy storage?
Yes — it is a hybrid inverter, ready for a low-voltage (LV) battery. Compatible models: AXE 5.0L-C1, HOPE 14.3L-A1, HOPE 16LM-A1.
How many phases and MPPT trackers does the WIT 20K-HU have?
The inverter is three-phase (230/400 V) and has 2 independent MPPT trackers. The number of MPPT trackers determines how many independent panel groups you can connect — important for roofs with differently oriented surfaces.
Can the Growatt WIT 20K-HU be installed outdoors?
Sí. El grado de protección IP66 permite su instalación tanto en interiores como en exteriores. Recomendamos un lugar a la sombra, alejado de la luz solar directa prolongada, y con cobertura Wi-Fi para la supervisión.
What warranty does the WIT 20K-HU carry?
The product is covered by a European service warranty (10 years per manufacturer).
¿Puedo supervisar la instalación de forma remota?
Sí, a través de la aplicación ShinePhone y del portal ShineServer por Wi-Fi, con información sobre la producción, el consumo y el estado de la batería.
Does the WIT 20K-HU provide emergency power during a grid outage?
Yes — the built-in EPS (backup) module keeps selected circuits supplied when the grid fails.
¿Cuál es la diferencia entre un inversor híbrido y uno conectado a la red?
Un inversor conectado a la red inyecta toda la energía fotovoltaica a la red y a la instalación, pero no funciona con una batería. Un inversor híbrido permite, además, almacenar el excedente de energía en una batería y mantener el suministro durante un corte de la red.
Where can I find the full electrical specification of the WIT 20K-HU?
En la ficha técnica oficial del fabricante se indican los rangos de tensión y corriente del MPPT, la eficiencia, las dimensiones y el peso. Los valores clave se resumen en la tabla de especificaciones anterior.
Los precios para empresas (B2B) se pueden consultar tras iniciar sesión. Inicia sesión para ver los precios para profesionales.
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