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8.2 kWh
Battery moduleAlpha ESS

Alpha ESS SMILE-BAT-x.xPHA

8.2 kWh · 9.8 kW · Lithium Iron Phosphate

UL 1973CEC listed · Jul 21, 2021
  • Nameplate energy8.2 kWh
  • Continuous power9.8 kW
  • ChemistryLithium Iron Phosphate

Overview

CEC Battery List

SMILE-BAT-x.xPHA: 8.2 kWh nameplate energy; 9.8 kW continuous; lithium iron phosphate.

Capacity & power

CEC Battery List

Charging from solar in Southern California

NLR PVWatts v8 · Cali-Graf calculation
CityDecemberJune
Los Angeles2.6 kW1.5 kW
Palmdale2.4 kW1.4 kW
Chula Vista2.2 kW1.6 kW
Huntington Beach2.4 kW1.7 kW
Riverside2.4 kW1.5 kW
Santa Clarita2.4 kW1.4 kW
Solar array size that refills the battery from empty in one average day, before the home uses any of it (NLR PVWatts v8, 20° south roof).

Safety listings

CEC Battery List

Compare with similar batteries

CEC Energy Storage System List
BatteryEnergyContinuous powerChemistryWarrantySoCal permits
SolarEdge Home Battery9.7 kWh5 kWLithium Ion10 years677
APsystems (Altenergy Power System) APbattery5.2 kWh5 kWLithium Iron Phosphate——
Schneider Electric Schneider Boost10 kWh8.1 kWLithium Iron Phosphate10 years—
Schneider Electric Schneider Boost10 kWh8.1 kWLithium Iron Phosphate10 years—
FOXESS ECS4000-H210.7 kWh5.76 kWLithium Iron Phosphate——
RNG International Renogy X10 kWh9 kWLithium Iron Phosphate10 years—
Same segment, similar capacity; each row from the same sources.

Sources

  1. California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
  2. California Energy Commission — Battery List, data as of Oct 7, 2026.
  3. NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
  4. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).