We did a Q4 SunPower install, cost £28k, aiming for 6-year payback. Real talk: inverter hiccups hit us year 2, dropping output 8%. roof warranty solar panels checklist helped avoid roof damage. Weekend install saved ops downtime—worth the hassle.

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We did a Q4 SunPower install, cost £28k, aiming for 6-year payback. Real talk: inverter hiccups hit us year 2, dropping output 8%. roof warranty solar panels checklist helped avoid roof damage. Weekend install saved ops downtime—worth the hassle