Single Phase Commercial Power Solutions
Providing backup energy storage for small commercial enterprises that utilize 120/240VAC single phase and three phase power is a key business segment of SunWize. Every day many more businesses realize the benefits of installing solar energy to offset their energy consumption and utility bills. Recently, many businesses have decided that they want to take the final step towards complete energy independence by adding a battery system. As a Tier 1 supplier of leading manufacturers such as Outback Power and Magnum Energy, we’re excited to help businesses transition towards energy independence.
Charging Mode
While the grid is active, the inverter/charger will be in charging mode, converting AC Power from the grid into regulated DC energy for your batteries.
Inverting Mode
When the grid fails, the inverter/charger will transfer (5 msec) into inverting mode, converting DC Power from the batteries into AC power for your loads.
Major Components
There is no single design criteria that fits all commercial battery backup system needs. However, there are several key components that are important to understand before thinking about implementing energy storage to your commercial business.
The inverter/charger is the heart of your commercial battery backup system. Featuring pure sine-wave output and advanced multi-stage battery charging, these units are responsible for your AC output power, as well as, battery charging from the grid.
However, they can only perform one function at a time, with a very small transfer time window as it switches between charging mode and inverter mode. Typically this is 30 msecs or less and is short enough that it will not cause most electronics to reset. Check electrical equipment specifications to determine what an acceptable transfer time window is. If a true UPS system is required (uninterruptible power supply), then two units are required.
The inverter charger should be sized to accommodate the maximum instantaneous load that’s expected in the application. Typical inverter charger ratings are 2kW/4kW/8kW etc. Make sure to be conservative in your sizing and don’t forget to account for surge loads!
Batteries are the energy storage devices that provide power when the sun is not shining and/or the grid is down. Many owners of solar installations to not realize that without energy storage, installed commercial and residential solar systems do not work when the grid goes down!
DC Balance of Systems (DC BOS) is the remaining components beyond the inverter/charger and batteries that may be required for your commercial battery backup system to operate. This can include many different pieces of electrical and mechanical hardware, including, but not limited to:
Depending on whether you’re designing a strictly battery backup system, an AC Coupled Battery Backup system, or a DC Coupled Battery Backup system, solar charge controllers may or may not be necessary.
Example Inverter/Charger Options
There are many manufacturers and product lines on the market for inverter/chargers. SunWize has strong relationships with both OutbackPower and Magnum Energy. We believe their lines of inverter/chargers offer the best combination of value and quality for hybrid, off-grid, and battery backup applications for single phase commercial power.
Below are a few of our most popular inverter/chargers and the major associated features of each.
GS8048A-01
MS4448PAE Most Popular!
VFXR3648A
Example Battery Options
Deciding which batteries to use for your system is one of the most challenging design options to face. Chemistry type, form factor, and voltage are just the beginning of things that you must consider when deciding what energy storage option to use. While there is always more than one option, some options may be better suited to your application than others, depending on which factors are most important to you.
SunWize strongly discourages using flooded batteries (or any battery that requires maintenance) unless the user has significant experience adhering to watering maintenance. In our experience, more often than not, the benefits of flooded batteries are counteracted by poor maintenance practices – particularly at sites that are primarily unmanned. Because of this, we strongly recommend the use of maintenance free batteries, such as VRLA or other advanced chemistries, such as Li-Ion or Lithium Iron Phosphate (LFP).
Below are some of the most popular battery options used in commercial and industrial battery backup applications. These are all Valve Regulated Lead Acid (VRLA) batteries.
8G8DLTP
UPG 40870 L16 Most Popular!
AVR125-33
2,930Ah
C/100 RateCall 866-827-6527 For Quote
Balance of System (DC BOS)
SunWize recommends the below manufacturers when considering your Balance of Systems. As a top distributor of these brands, we are able to sell any products. Not all available products are shown on our webstore, SunWize Connect.
If you have questions or need help finding a product, please contact us at (866) 827-6527.
Complete Pre-Wired Systems
Looking for a plug-and-play system that takes the hassle out of the process?
OutBack Power: SystemEdge
OutBack Power: SystemEdgeA Smart Pre-Bundled Solar Solution
Experience the benefits of the quality of Outback and single-brand simplicity with a pre-bundled solution from OutBack Power.
This popular configurations have been combined into a single SKU to streamline ordering. The SystemEdge series include FLEXpower integrated system, EnergyCell batteries housed in a rack or enclosure, FLEXware ICS combiner box and OPTICS RE system monitoring and control.
1. OutBack FLEXpower Integrated Inverter
Radian Series Inverter/Charger, FLEXmax 80 Charge Controllers, Mate3 System Display, FLEXnet DC System Monitor, AC and DC Wiring Boxes, Surge Protector, Battery and PV Array Breakers, GFDI and Input-Output Bypass
2. OutBack Energy Storage
From batteries to pre-assembled and pre-wired racks and enclosures, OutBack has an energy storage solution for virtually any application. Using EnergyCell RE or NC batteries, available in 12kWh, 18kWh, and 64kWh configurations
3. OPTICS RE Monitoring and Control
OPTICS RE is included as part of every OutBack FLEXpower system, giving owners total control over how renewable energy is generator, stored and consumed. Access from any internet-connected device, control over 600 Parameters, and receive email alerts & notifications.
As always you have the SunWize team to support you through your purchase.
Custom Pre-Wired Systems
Don’t see what you’re looking for? Looking for a custom Pre-Wired System? SunWize can help!
Please contact us using one of the methods below for a quote:
1. Call us at (866) 827-6527 to speak to a sales representative
2. Email us at [email protected] and we’ll get in touch
3. Use our contact us landing page to submit your project information