Use the calculator above to translate your energy needs into a right-sized solar array. This guide explains the equations, what each input means, and how to avoid the most common pitfalls—complete with worked examples you can mirror.
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A drill with suitable bits - ideally masonry bits if you're securing the inverter to a brick or concrete wall - is essential. You'll also need screwdrivers, bolts, and nuts, as well as a spirit level to ensure your inverter is level once mounted.
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Panels perform best in direct sun, but they can still generate electricity in cloudy conditions or even when partially shaded. The real difference comes down to how much energy is lost under shade — and that can affect your overall savings and payback period.
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Explore detailed profiles of top solar installers, including contact info, nationwide coverage, BBB ratings, pricing and more. Sign up directly or compare options with links to other trusted installers.
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