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Plain-language guides on solar cost, the tax credit, and system sizing, written by Jessica Martinez for people who want to understand the numbers before they talk to an installer.

A solar water heater attacks one of your biggest energy bills, and it qualifies for the 30% federal credit. Here is the cost.

Solar water heater cost in 2026, active vs passive systems, payback, and how it earns the 30% federal tax credit when certified.

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A solar pool heater can pay back in a few seasons. Here is the cost, the payback, and one tax-credit catch.

What a solar pool heater costs installed, how to size it, glazed vs unglazed collectors, and why the federal credit does not apply.

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A solar attic fan ventilates on free sunlight, and it qualifies for the 30% federal tax credit. Here is the price.

Solar attic fan cost installed, roof-mount vs gable-mount, and why it earns the credit when a plug-in fan does not.

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Solar panel installation is most of what you pay. Here is the real cost, from price per watt to the bill after the tax credit.

What solar panel installation costs in 2026 by system size, what is in the labor line, and how the 30% federal credit cuts the total.

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Are solar panels worth it in 2026? Yes, for most US homeowners. Here is what the numbers actually show.

For most US homeowners in 2026, the numbers work out. Here is the full breakdown: costs, savings, payback, and the cases where it still does not make sense.

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The 30% federal solar tax credit cuts your installation cost by nearly a third. Here is how to claim it.

The 30% credit comes off your tax bill, not your income. Here is who qualifies, what costs are covered, and how to file for it on Form 5695.

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Most US homes need 17 to 25 solar panels. Here is how to calculate the right number for your home.

Most US homes need 17 to 25 panels. The number depends on your annual kWh, your local sun hours, and the wattage of the panels you pick. Here is the formula.

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