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residential case study
Off-Grid Bahamas Island Home
Bahamas · Off-grid residential PV + storage

Overview
A remote island home achieves complete energy independence with a Sol-Ark hybrid inverter and battery system — no utility connection required.
The challenge
An island residence located far from any utility infrastructure required a fully off-grid power solution capable of supporting daily living loads, well pumps, and air conditioning year-round in a harsh coastal environment.
The solution
Lumis-installed Sol-Ark hybrid inverters paired with a high-capacity lithium battery bank deliver reliable 24/7 off-grid power. The system is engineered for tropical conditions with corrosion-resistant balance-of-system components.
Results
- Complete elimination of generator runtime for daily loads
- Reliable 24/7 power without utility connection
- Resilience through hurricane-season grid events


