ROI

Is a solar generator worth it? Used monthly, a 2kWh unit covers its gap over a budget gas generator in about 1.5 years. Worked math, caveats, verdict.

Does rooftop solar pay off in 2026? Without the 30% credit, an $18,000 6kW system pays back in about 15 years at $0.16/kWh, 13 at $0.18. Payback by state.

Solar panels cost a median $3.60 per watt installed ($3.00 for cash buyers), Berkeley Lab says: $18,000-$21,600 for 6kW. No federal credit for 2026 installs.