Fortress Power

Fortress Power eSpire Nano 30kW 208V Three-Phase Hybrid Inverter (FP-Nano-30K-L)

$14666.67
$14666.67
Sale

Cut Demand Charges and Keep the Lights On, From One Box

The Fortress Power eSpire Nano 30kW Three-Phase Hybrid Inverter (FP-Nano-30K-L) brings solar, battery storage, and backup power together in a single outdoor-rated unit built for 208Y/120V commercial and industrial sites. Pair it with eSpire Nano high-voltage LFP battery cabinets and you get peak shaving, time-of-use load shifting, self-consumption, microgrid, and full off-grid operation without stacking separate inverters, chargers, and transfer switches.

Picture a grocery store on a hot August afternoon: the compressors kick on, the utility's demand window opens, and instead of pulling a costly spike from the grid, the eSpire Nano quietly discharges up to 33 kW from the batteries. When the grid drops, critical loads switch to backup in under 10 ms. The coolers keep humming and the registers never blink.

Why Installers Choose It

  • 30 kW rated AC output, 26 kW backup at 208 V: transfers to backup in under 10 ms
  • Three independent MPPTs, 60 kW usable PV: up to six strings across a 150–850 V window, ideal for arrays on different roof planes
  • 33 kW battery charge and discharge: enough throughput to move a full 40 kWh or 60 kWh cabinet through a demand-charge window
  • Smart ports for a generator, AC-coupled PV, or one load circuit: generator 2-wire start supported
  • Export power control built in: the supplied meter and CT set enforce a kW export limit or disable export entirely
  • Scales to six inverters in parallel: all units must be the same model and share the same AC panels
  • Metering hardware in the box: Eastron SDM630MCT meter, three 600 A Rogowski coils, wall-mount bracket, and communication dongle
  • High-leg delta ready: supports 240V 3P4W service in grid-tied mode

Where It Fits

Designed for businesses on 208Y/120V three-phase service: grocery and convenience stores, schools, banks, clinics, manufacturing plants, and EV charging or service areas. Common uses include demand-charge management, time-of-use arbitrage, critical-load backup, microgrids alongside a generator, and fully off-grid systems.

Technical Specifications

Specification Value
AC Configuration 208Y/120V three-phase (208 / 220 / 240 Vac 3P4W); high-leg delta 240V 3P4W supported in grid-tied mode only
Rated AC Output Power 30 kW
Rated AC Output Current 72.2 A
Max. Apparent AC Output Power 26 kVA
Rated Backup Power Output 26 kW at 208 V (27.5 kW at 220 V, 30 kW at 240 V)
Max. Backup Current Output 86.6 A (5 min) / 101.8 A (1 min) / 108.3 A (10 s) / 115.5 A (2 s)
Backup Switch Time Under 10 ms
Max. AC Passthrough Current 144.4 A
Max. Battery Charge / Discharge Power 33 kW
Rated Frequency / Input Range 60 Hz / 55–65 Hz
Grid Power Factor Greater than 0.99 (0.8 leading to 0.8 lagging)
THDi / THDv 3% or less / under 2% at linear load
Max. Usable PV Input Power 60 kW
MPPTs / Max. PV Strings 3 / 6
MPPT Voltage Range 150–850 V (full load 500–850 V; rated 600 V; start-up 180 V)
Max. PV Input Voltage 1000 V
Max. PV Current per MPPT 42 A continuous (21 A per input); 65 A short circuit
Max. Input Power per MPPT 25 kW
Inverter Efficiency 97.80%
Max. Inverters in Parallel 6
Operating Altitude Up to 8,202 ft (2,500 m) without derating
Weight Approximately 196 lb
Communication CAN, RS485 (115200), Ethernet; Wi-Fi through included communication dongle
Battery Compatibility Fortress Power eSpire Nano high-voltage batteries only
Certifications UL 1741 SB, UL 3141, CA Rule 21, HECO Rule 14H

Compatible Batteries

This inverter works exclusively with Fortress Power eSpire Nano high-voltage batteries:

  • FP-Nano-S8-O: 40 kWh outdoor high-voltage battery
  • FP-Nano-S12-O: 60 kWh outdoor high-voltage battery
  • FP-Nano-S8-I: 40 kWh indoor high-voltage battery
  • FP-Nano-S12-I: 60 kWh indoor high-voltage battery

Warranty and Support

10-Year Warranty: 70% capacity retention with 8,000 cycles. Backed by North America-based technical support from project design through commissioning.

Product Documents