The cost of residential solar power systems are becoming more affordable for homeowners.
Solar panels generally make up less than 50% of the final cost, since you also have to pay for installation, permits and taxes. Most systems also need an inverter to convert the panel array’s direct current output to alternating current. Even so, with the price of panels being slashed, the cost of an installed system that retailed for $9-10 per watt last year can now be fully installed and operating for around $7.50 per watt, even before the government subsidies.
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