Growatt SPF 3000TL LVM-ES is a single-phase off-grid inverter designed for locations where energy independence matters - in year-round homes, summer cottages, workshops, or as a backup power source. The equipment combines a sinusoidal inverter, PV charging regulator, and UPS function in one housing, making installation simpler and ensuring virtually undetectable switching to battery power for many devices.
A major advantage is the presence of two independent MPPT channels, which facilitate optimal operation under partial shading and when PV modules are arranged in different orientations or across multiple roof pitches. High European efficiency means fewer losses in real conditions and better annual energy yield.
Remote monitoring via WiFi or GPRS modules, along with configuration and operational monitoring tools are available. The series is compatible with energy storage systems, including batteries with BMS communication (CAN/RS485), and the ability to operate in parallel allows for system scaling. Certificates and standard manufacturer warranty conditions are also available.
Ranking
Price offers
| Shop | Country | Price | Per kW | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| signaturesolar.com | United States | 649 $ net | 216.33 $/kW | In stock | 16h ago | Visit shop |
Specifications
Pros and cons
The inverter features two independent MPPT trackers with a range of 120-250 V DC, with a combined PV power acceptance of up to 4000 W (DC/AC ratio of 1.2). This allows for the connection of panels with different orientations or tilt angles without performance loss due to mismatched strings - a significant advantage in installations across multiple roof sections.
Integrating the sinusoidal inverter, MPPT charge controller, and UPS module into a single enclosure reduces the number of components in the installation and minimizes potential points of failure. The switch to battery power is so quick that most devices (computers, TVs, NAS) do not register any power outages.
The ability to connect up to 6 SPF 3000TL LVM-ES units in parallel allows for system expansion to 18 kW without replacing the inverter - a rare feature in the segment of compact 3 kW off-grid inverters, and particularly valuable when planning phased expansions.
Support for BMS protocols via CAN and RS485 interfaces provides full integration with modern energy storage systems (LiFePO4 with active BMS), enabling dynamic management of charging current and protection against overcharging at the communication level - not just through voltage.
Double peak power (6000 VA at nominal 3000 W) makes it easier to start inductive loads (pumps, compressors, electric tools). At the same time, the output power factor of 1.0 means that 3000 W represents the actual active power, not a nominal value.
An IP20 rating provides no protection against dust or moisture. In practice, this prevents installation in unheated garages, sheds, technical containers, or outdoors, where comparable Victron Energy (MultiPlus-II, IP21) or Deye (IP65 in outdoor versions) solutions are typically used.
The declared peak efficiency of 93% is solid for the budget segment, however, premium-class competitors achieve 96-97% (Victron MultiPlus-II 3 kVA: 96%, SMA Sunny Island 3.0: 95.5%). In a system operating for 15 years, the difference of 3% in efficiency translates to a significantly lower annual yield.
On the DIY Solar Power Forum, instances of random glitches and voltage spikes (exceeding 300 V AC) were reported, which damaged connected devices. The issue was not isolated and indicated a vulnerability in the system software - users recommend regular firmware updates after each new Growatt release.
Alternatives
About the SPF 3000TL LVM-ES series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.