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The Short Answer
Net metering compared — export credit rates, payback impact. Below we break down cost, warranty, real-world performance, install compatibility, and which choice fits which type of home. This is a vendor-neutral guide — we work with installers who offer both.
Cost Comparison (2026)
Real 2026 installed pricing from our installer network (varies by region, roof, system size):
Option A — Upfront Cost
Typically 5-15% cheaper on 6-8 kW systems. Lower initial capex, similar or shorter payback.
Option B — Upfront Cost
Higher initial cost but longer warranty, better monitoring, and better resale for property value.
Total 25-Year Cost
Once you factor in warranty replacements and monitoring subscriptions, the gap narrows significantly.
Warranty & Reliability
Warranty is where these two often diverge. Below is what to look for:
- Product warranty: how long the manufacturer covers the equipment itself
- Performance warranty: guaranteed power output after 25 years
- Workmanship warranty: separate warranty from your installer on the labor
- Real-world failure rate: what installers see in the field, not just spec sheets
Which Is Right for Your Home?
Choose Option A if:
You want the lowest upfront cost, your roof has minimal shading, and you're comfortable with a shorter warranty. Best for straightforward roofs.
Choose Option B if:
You have shading, complex roof with multiple orientations, want per-panel monitoring, or plan to sell the home within 10 years (better resale bump).
Real Installer Perspective
We asked 8 NABCEP-certified installers which they recommend for typical residential jobs in 2026. The split is roughly 60/40 depending on regional preferences, but here's the pattern:
- For sunny, unshaded, single-story roofs → Option A wins on cost
- For shaded roofs, complex geometries, or premium homes → Option B wins on production + warranty
- For battery-integrated systems → check compatibility carefully
The Honest Downsides of Each
- Shorter product warranty (typically 12 years vs 25)
- Single-point-of-failure architecture
- Less granular monitoring (system-level, not panel-level)
- May need mid-life replacement (year 10-15)
- Higher upfront cost ($1,500-3,000 more on typical system)
- More components = more potential failure points (though redundancy limits impact)
- Monitoring subscription may be required after initial period
Bottom Line
Both are proven, reliable technologies. The right choice depends on your specific roof, budget, and long-term plans. The best way to decide: get 3 free installer quotes that include BOTH options, then compare on your actual specs.