Renewable Energy, Battery Bank | Outback Power Systems GFX1448E

Planning

Renewable Energy

The inverter cannot connect directly to PV, wind, or other renewable sources. The batteries are the inverter’s primary source of power. However, if these sources are used to charge the batteries, the inverter can use their energy by drawing it from the batteries.

The renewable source is always treated as a battery charger, even if all of its power is used immediately. The renewable source must have a charge controller or some way to prevent overcharging. OutBack Power’s FLEXmax charge controllers can be used for this purpose, as can other products.

Battery Bank

IMPORTANT:

Battery charger settings need to be correct for a given battery type. Always follow battery manufacturer recommendations. Making incorrect settings, or leaving them at factory default settings, may cause the batteries to be undercharged or overcharged.

When planning a battery bank, consider the following:

The GFX inverters work best with lead-chemistry batteries intended for deep discharge. These include batteries for marine, golf-cart, and forklift applications. They also include gel-cell batteries and absorbed glass-mat (AGM) batteries. OutBack Power recommends the use of batteries designed specifically for RE applications. Automotive batteries are strongly discouraged and will have a short life if used in inverter applications. Nickel-based batteries and lithium-ion batteries are discouraged due to limitations in the inverter’s battery charger.

These inverters are designed to work with 12-, 24-, or 48-volt battery banks, depending on inverter model. Before constructing a battery bank, check the inverter model and confirm nominal battery voltage.

A vented enclosure for the battery bank may be required by electric code and is recommended in most cases for safety reasons.

CAUTION: Hazard to Equipment

Batteries can emit hydrogen sulfide gas which is corrosive over long periods of time. Installing the inverter in the battery compartment may cause corrosion which is not covered by the product warranty. (Sealed batteries may be an exception.)

Generator

The GFX inverters can work with any generator that delivers clean 230 Vac at 50 Hz. Inverters stacked for three-phase output can work with three-phase generators.

If automatic generator starting is desired, the generator must be an electric-start model with an automatic choke. The inverter can only perform two-wire starting. (See page 24.) For other starting configurations, additional equipment is required.

In all cases, the inverter must be programmed appropriately using a remote system display. (See the International Series GFX Operator’s Manual and the system display manual.)

Generator Sizing

12	900-0111-01-00 Rev A

GFX1448E, GFX1424E, GFX1312E specifications

Outback Power Systems has long been recognized for its innovation and reliability in the field of renewable energy solutions, particularly with its GFX series of grid-tied inverters. The GFX1312E, GFX1424E, and GFX1448E models exemplify their commitment to quality and performance, making them ideal choices for both residential and commercial applications.

The GFX1312E is designed to deliver a solid 1300 watts of continuous output power at 12 volts, offering efficient energy conversion for smaller solar setups or off-grid living situations. Its compact design allows for easy installation, while advanced engineering ensures high performance even in challenging conditions. The GFX1312E features a pure sine wave output, which is critical for sensitive electronic devices, ensuring compatibility and safeguarding against potential damage.

Moving up in power capacity, the GFX1424E operates at 1400 watts with a 24-volt configuration. This model is particularly well-suited for medium-sized solar energy systems. It supports 120/240 volts split-phase output, providing greater flexibility for various household appliances and ensuring that users can maximize their energy usage with efficiency. The GFX1424E also incorporates an extensive array of intelligent charging profiles that optimize battery performance and longevity.

The GFX1448E caps the series with impressive 1400 watts of continuous output at 48 volts, catering primarily to larger installations and those requiring more robust energy management solutions. This inverter is equipped with Outback's patented GridZero™ technology, allowing for seamless integration of solar energy production with utility power, helping users to minimize grid dependence while maximizing savings. With advanced features like backup capability and grid-interactive operation, this model is highly versatile.

All three models share key characteristics such as network connectivity through the Outback Power's MATE series of controllers, enabling real-time monitoring and system management. They are designed for durability and have protective features against overloads and short circuits, ensuring reliable performance over time. With their modular design, users can easily scale their system by connecting multiple units, making these inverters a practical choice for expanding energy needs.

In summary, the Outback Power Systems GFX1312E, GFX1424E, and GFX1448E inverters provide top-tier options for those looking to harness solar energy efficiently. Their respective power outputs, advanced technologies, and user-friendly interfaces position them as excellent choices for both residential and commercial energy solutions, underscoring Outback's reputation as a leader in the renewable energy market.