What Size Solar Generator Do I Need? For House, Camping
Sizing your off-grid solar system correctly is crucial because it directly affects your energy independence and system efficiency. If you
The panels must generate enough electricity to both power immediate needs and charge the batteries for later use. A common sizing rule suggests that battery capacity should roughly match daily solar production. For example, a 5kW solar array producing about 20kWh daily pairs well with a 10-20kWh battery system.
The ideal battery size for a solar system depends on your daily energy consumption, desired backup duration, and available solar production capacity. Typically, you'll want to calculate your average daily electricity usage in kilowatt-hours (kWh) and determine how many hours or days of backup power you need when the sun isn't shining.
Properly sizing a battery system for solar installations requires balancing energy needs, system capabilities, and budget considerations. The right battery capacity ensures reliable power during outages and maximizes the value of your solar investment.
The first step to sizing your system starts with what loads or devices you want your solar system to run. It is important to get the wattage of each item you are planning to run along with how long you plan on running them for. You will multiply the watts by the hours to get Watt-Hours.
PDF includes complete article with source references for printing and offline reading.
Download detailed specifications for our distributed PV energy storage systems and liquid cooled ESS containers.
Calle de la Energía 24
Madrid 28045, Spain
+34 911 224 722
Monday - Friday: 8:00 AM - 7:00 PM CET