Empower your projects with dependable, high-performance energy storage solutions from Portlandia Electric Supply. Our Batteries / Energy Storage Systems (ESS) collection brings top-tier brands, flexible energy capacities, and advanced technologies—ideal for home resilience, commercial backup, and microgrid integration.

Top Products & Key Specifications

• Fortress Power Avalon HV Pro ESS (7.6 kW inverter, 29.4 kWh)
  Hybrid-ready system featuring a smart energy panel, UL9540A certification, and NEMA 3R/4X rating for both indoor and outdoor installation.

• Simpliphi (Briggs & Stratton) SPHI-ESS Series
  A lineup with modular capacities, such as:

  • SPHI-ESS-15-6 – ~14.94 kWh

  • SPHI-ESS-20-6 – ~19.92 kWh

  • SPHI-ESS-25-12 – ~24.90 kWh

  • SPHI-ESS-30-12 – ~29.88 kWh

  • SPHI-ESS-40-18 – ~39.84 kWh with solar-to-utility efficiency up to 96.5 % and battery-to-load efficiency up to 91 %. Includes advanced safety features like anti-islanding and AFCI, plus intuitive EnergyTrak monitoring via LCD and smartphone app. 

• Victron Energy Batteries

  • LiFePO₄ Battery 256 V / 200 Ah – Smart-A: Smart-enabled monitoring, Bluetooth connectivity, robust protection against overload and shocks.

  • 12 V / 220 Ah Gel Deep Cycle Battery: Immobilized gel technology with excellent deep-discharge recovery and <2 % self-discharge per month—maintenance-free.

  • Lead-Carbon Battery 12 V / 106 Ah (M8 Terminal): Enhanced cycling and reduced sulfation via lead-carbon composite construction.

Why Choose This Collection?

• Range of Capacities & Configurations—Choose from 5 kWh compact units to nearly 40 kWh modular systems, scalable for residential or business needs.

• Hybrid-Ready & Efficient—Systems like Fortress Power and Simpliphi offer seamless solar, grid, and backup integration.

• Safety & Compliance—UL9540A-rated options and built-in protections ensure reliable operation in a variety of environments.

• Smart Monitoring & Control—EnergyTrak app, LCD panels, and Bluetooth connectivity empower real-time system visibility and control.

Best Fit for These Solutions

• Residential Resilience—Compact, safe systems such as AccESS 6 kW or Simpliphi’s smaller models.

• Mid-Sized & Whole-Home Backup—Simpliphi’s mid-tier models (20–30 kWh range) offer dependable power during outages.

• Scalable & Hybrid Deployments—Fortress and modular Simpliphi systems support future expansion and solar pairing.

• Versatile Battery Options—Victron batteries provide cost-efficient storage for DIY setups, microgrids, or off-grid uses.

Optimize your energy systems with Portlandia Electric Supply’s ESS collection—built for performance, safety, and flexibility. Whether it's compact reliability or expandable hybrid setups, this range covers every need.