Panasonic panels typically cost about $3.10 per watt to install. Panasonic uses HIT and half-cut solar cell technology so their panels can operate better under real-world conditions, and can convert more sunlight into electricity. Panasonic’s solar warranty is better than most warranties on the market, guaranteeing that its panels will operate between 90% and 92% of their initial power rating after 25 years.

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