Tesla Powerwall 3 vs. Enphase IQ Battery 5P: NEM 3.0 ROI Comparison

Choosing the right battery storage system is the single most critical decision when going solar under NEM 3.0. The two market leaders in North America—Tesla Powerwall 3 and Enphase IQ Battery 5P—offer fundamentally different architectures.

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Key Specs Head-to-Head

Feature	Tesla Powerwall 3	Enphase IQ Battery 5P
Usable Capacity	13.5 kWh	5.0 kWh (Modular)
Continuous Power Output	11.5 kW	3.84 kW
Chemistry	LFP (Lithium Iron Phosphate)	LFP (Lithium Iron Phosphate)
Integrated Inverter	Solar Inverter Built-In	Microinverter Architecture
Warranty	10 Years	15 Years

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Financial & ROI Breakdown

1. Tesla Powerwall 3: Best Value Per kWh

With 13.5 kWh of capacity and high peak output capable of starting whole-home HVAC units, Powerwall 3 provides the lowest dollar-per-kilowatt-hour cost. It is ideal for medium-to-large homes with high evening power demand.

2. Enphase IQ 5P: Best Modular Flexibility & Warranty

Enphase offers unmatched reliability with microinverter redundancy and a 15-year standard warranty. Its 5 kWh modular size allows homeowners with lower night consumption to start with a smaller capital outlay.

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Which Battery Fits Your Budget?

Get Custom Quotes for Tesla & Enphase Systems From Certified CA Installers

Specs above reflect publicly published manufacturer datasheets; confirm current specs and pricing with an installer, as models and warranties can change.