The 4kW (4000W) rating of a solar system means that, provided there’s enough direct sunlight, the 4kW solar system can produce 4000W (Watts) or 4kW (kiloWatts) of power, or even more under the right conditions. Related: How much sunlight do solar panels need?
[pdf] In some ways, solar generators are misnamed. “Technically, a PV (photovoltaic) panel—or solar panel—is what generates power,” says Ford. “The problem is that sunlight varies throughout the day, so voltag.
[pdf] Depending on your family’s energy use, you may need a system that generates more or less electrical power. Ensure that your system will generate enough electricity during the day and, if desired, enough.
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