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Founded in 2001, OutBack initially designed and manufactured integration hardware used by solar installers to house and protect power electronics installed in remote environments and harsh condition locations around the world. Soon the company launched an advanced line of rugged inverter products that delivered pure sine wave power for off-grid residential and commercial installations, ultimately expanding its offering to include off-grid inverters with battery backup, grid-tie inverters with battery backup, Maximum Power Point Tracking (MPPT) charge controllers, communications products and a complete line of OutBack EnergyCell batteries designed specifically for renewable energy applications.

17 years later, OutBack Power continues to lead the way with advanced off-grid and grid-interactive battery-based renewable energy systems, the fully UL 1741 SA listed Radian Series and FXR Series inverter/chargers and our SystemEdge packages that bundle the right combination of energy storage and power electronics, merging energy independence with smart home technology for a range of common applications.

Use an autotransformer as a step-down to connect the 240 VAC output of a generator to the 120 VAC input on an inverter. This allows full output power of a 240 VAC generator to be used for battery charging. Autotransformers can also step-up voltage to operate 240 VAC appliances and motors from the 120 VAC output of an inverter.

DC-DC converters are used to power appliances requiring a different voltage than the battery bank supplies. For example, powering a 12 VDC appliance that needs to be run from a 24 VDC or 48 VDC battery bank. Using a DC-DC converter is preferred for powering loads that require a different voltage than the battery bank’s system voltage as center-tapping causes cell imbalances that shorten the useful life of the battery bank.

It is very important to prevent battery banks from being discharged too far. These specialized controllers send a start-up signal to a backup or remote power generator when the battery bank reaches a given voltage set point. It is important to note that not all start controllers work with all generators. Please contact AEE Solar to assess or confirm compatibility.

The simple controls presented here enable you to automate certain functions for your renewable energy system, such as turning on/off a load or starting/stopping a generator, or inverter, based on logical conditions, such as battery voltage, time of day, or sensor reading. Relays enable a small control voltage signal to open or close a switch for a much larger voltage and current. Select relays and design your system so that it will “fail safe” if the control signal is lost.

AC input battery chargers can be used with AC generators to provide battery charging on an emergency basis or in the absence of a renewable energy source. Since proper charging is vital to battery health, a high-quality charger is recommended if you plan to charge batteries from an engine generator.

Wind and hydroelectric generators can be damaged if they are allowed to run without a steady load. Battery banks can also be compromised if they are overcharged. Diversion loads, usually resistive heating elements, are used to provide a safety load for when the battery bank is fully charged and cannot accept more energy. The diversion load is generally switched on by a controller, or relay, driven by battery voltage.

Unlike the lead-acid batteries they’re designed to replace, most lithium batteries can only handle steady, low-current loads over long durations. They overload or restrict their output when they’re hit with inductive in-rush from inverters and demanding motor loads. RUSH © by Discover is the capability, unique to their BMS design, that allows their LiFePO4 batteries to handle the high current charge and discharge demands of off-grid homes and commercial facilities.

Discover AES LiFePO 4 batteries are the only advanced storage batteries with 1C continuous charge and discharge capability and 4X peak current handling. When system designs call for multiple batteries, RUSH © ensures that the current-handling capabilities scale with your storage capacity: doubling with 2 batteries, tripling with 3, etc… Discover AES batteries with RUSH © allow your customers to run the same loads they could with lead-acid while enjoying the advantages of an advanced lithium cell technology.

With over 60 years of experience, Discover Battery is helping to accelerate a global power shift for a cleaner energy future. We offer world leading expertise for a range of applications, including: Renewable energy, Commercial purposes, Telecom systems, Mobility, UPS & emergency lighting

Being passionate about something doesn’t necessarily mean you’ll be good at it. Conversely, being good at something isn’t always fuelled by passion. At Discover, not only are we passionate about solving difficult transportation, motive power and energy storage challenges but we are really good at it too, and probably not for the reasons anyone would think.

Q: With a DC coupled system using the Schneider Electric XW MPPT80-600 charge controller & Tigo optimizers, what else is needed to comply with 2017 rapid shutdown requirements? Can an exterior mounted switch signal the charge controller to shut down from a distance?

A: It would be nice if this worked but there are some potential problems. One is that I’ve heard that the Tigo TS4 may not work with some charge controllers, specifically the XW MPPT80-600. It also does not work with most of the arc fault devices used for this application. The other problem is that there is no way to remotely shut off the XW MPPT80-600 charge control. Even if you do shut it off it will still have voltage on the array side for longer than the time allowed. This means that the Rapid Shutdown (RSD) system must disconnect the charge controller input from the array output circuit. Using an array disconnect near the charge control to trigger RSD might be acceptable to some inspectors in some cases. For use with the XW MPPT80-600 I use two of the MidNite MNSOB, one for each end of the PV circuits. At this time the only charge control I know of that has a built in RSD command and shutdown is the OutBack FM100. The TS4 is currently being tested with that charge control, and the Tigo does work with the FM60 and FM80 charge controls (but not the ICS+).