What solar gear actually costs today
A price list built for people who do the install themselves: sortable$/W and $/kWhacross the vendors DIY builders actually buy from, with the specs that decide compatibility sitting in the same row as the price. Every price carries the date it was checked.
Batteries
35 listed$72.86best $/kWh
Victron Battery Monitor BMV-702
Charge Controllers
24 listed$3.88best $/A
Victron MPPT SmartSolar 100/50A Solar Charge Controller
Inverters
46 listed$0.08best $/W
EG4 12000XP Off-Grid Inverter 48V Split Phase 120/240V 24kW PV Input 12kW Power Output
Solar Panels
117 listed$0.104best $/W
Used Good Itek 240W Solar Panel - Pallet of 10