EquipmentUp to date · Jan 15, 2026
Power Wall
Colloquial reference to a wall-mounted residential battery storage system, often used specifically to refer to Tesla's Powerwall product (now in its third generation).
Related Terms
Battery Storage
A system that stores excess solar energy for use when the sun isn't shining, providing backup power during outages.
LFP (Lithium Iron Phosphate)
A lithium-ion battery chemistry (LiFePO₄) known for long cycle life (4,000-10,000 cycles), high safety (no thermal runaway), and lower energy density compared to NMC.
Whole-Home Backup
A battery system sized to power an entire home during a grid outage, as opposed to backing up only essential/critical loads. Typically requires 2-4 batteries (30-50+ kWh).