3 Phase 8kw MPPT off Grid Hybrid Solar Inverter for home use with cheap price

An on-grid inverter’s main job is to convert DC power generated from the PV array into usable AC power. Hybrid inverters go a step further and work with batteries to store excess power as well. In the developing world, hybrid inverters are more of a necessity to compensate for weak or intermittent grids or a lack of grid electricity all together.

The solar energy storage inverter can be used for both on grid and off grid solar systems, it integrates controller and inverter. During the daytime, the PV array generates electricity to provide power either to the loads, or  to the grid or charge the battery.  The battery can be charged either by PV power or by grid, the power stored in the battery can be released whenever the loads require it.  Moreover ,the inverter can give three phase unbalanced output accroding to set up, to make a most flexible power solution.

This is brand new three phase hybrid inverter with low battery voltage 48V, ensuring system safe and reliable.With compact design and high-power density, this series supports 1.3 DC/AC ratio,saving device investment.It supports three phase unbalanced output, extending the application scenarios.Equipped with CAN port(x2) BMS and parallel, x1 RS485 port for BMS,x1 RS232 port for remotely control, x1 DRM port, which makes the system smart and flexible.

1. Supports lead acid battery and li-ion battery connections. 2. With a dual activation function when the li-ion battery is dormant; either mains/photovoltaic power supply access can trigger the activation of the li-ion battery. 3. Support split-phase and single-phase pure sine wave output. 4. Supports four different voltage levels of 100Vac, 105Vac, 110Vac, and 120Vac per phase. 5. Supports two solar inputs and simultaneous tracking of two solar maximum power charging/carrying capacity functions. 6. Dual MPPT with 99.9% efficiency and maximum 22A current in a single circuit, perfectly adapted to high power modules.

This is a multifunctional inverter,combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user configurable and easy accessible button operation such as battery charging, AC/solar charging, and acceptable input voltage based on different applications.

Off-grid or hybrid optional 6KW inverter, Max 3pcs in parallel Grade A battery cells, up to 6000+ cycles 5.5KWh battery, Max 12pcs in parallel Easy to install, combined freely BMS & battery capacity auto-sense WiFi/GPRS remote monitoring (optional)

The on grid solar power system converts the solar energy into electrical energy, without the storage battery, and directly sends the electrical energy to the grid through the grid-connected inverter. Inverter power: 3kW AC output voltage: three phase Solar panel type: mono or poly

Characters Transformerless with three level topology Max efficiency up to 98.6% Dual MPPT inputs accommodating wide voltage range Compact structure design Complete protection function such as anti-islanding, short circuit, overload Easy installation and free maintenance WiFi or GPRS (optional) communication Component brands Specification Model No ST17KTL ST20KTL ST25KTL DC side/Input parameters Max. DC power [W] 18500 22000 25000 Max. DC voltage [Vdc] 1000Vdc. 1000Vdc. 1000Vdc Min. System start/Shut down voltage [Vdc] 250 250 250 MPPT voltage range[Vdc] 250~850 250~850 250~850 Max. input current [A] 25A*2 25A*2 25A*2 Number of MPP trackers 2 2 2 Strings per MPP tracker 2 2 2 AC side/output parameters Nominal output power [W] 17000 20000 25000 Maximum output power [W] 18500 22000 27000 Nominal output voltage/range [V] 400V/ 280-490V（adjustable) AC grid frequency/range [Hz] 50Hz,60Hz(auto-selection) / 44Hz-55Hz; 54Hz-65Hz Maximum output current [A] 25 30 36 AC connection(with PE) 3W/N/PE 3W/N/PE 3W/N/PE Current distortion(THDi) [%] <1.5 <1.5 <1.5 Power factor [%] >99.95 >99.95 >99.95 Efficiency Maximum conversion efficiency[%] 98.5 98.6 98.8 European efficiency[%] 98.1 98.2 98.3 MPPT efficiency[%] 99.9 99.9 99.9 Safety and protection yes DC reverse-polarity protection yes Anti-islanding / Overvoltage protection yes Short circuit protection yes Leakage current protection yes Grid monitoring / Ground fault monitoring yes DC/AC side varistors(thermally protected) yes General Parameters Dimension(L/W/H)[mm] 505*525*245 Weight (kg) 37 Embedded DC Switch Optional Night power consumption[W] <0.2 Isolation type Transformerless Protection degree IP65 according to IEC60529 Operation temperature[ºC] -25 ~ 60 Cooling concept Natural convection Acoustic noise level[dB] <25 Operating altitude[m] <2000 without power derating Display Graphic LCD Communication Interface Standard WIFI; GPRS(optional) Certificates and Approvals CE-(EMC/LVD) : EN(IEC) 61000-1/-2/-3/; EN(IEC) 62109-1/-2;IEC 61727/62116;G83-3/G59-3; EN50438;VDE-0126-1-1;VDE-AR-N4105;AS4777.2;AS4777.3 Projects