In this post, we'll explore the differences between connecting solar panels and batteries in series and parallel, including the pros and cons of each connection type.
Enter a few required parameters into the following calculator and estimate the number of panels, solar array dimensions, and area required to install a solar system.
In simple terms, yes, solar panels do need an inverter. The inverter plays a vital role in converting the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity, which is the form of electricity used in homes and businesses.
A solar battery captures excess electricity from your solar panels and holds it for later use. Instead of sending surplus power back to the grid or losing it entirely, a battery lets you bank that energy and deploy it on your own schedule.
Solar System Calculator (SSC) - free, easy-to-use web tool to size solar panels, batteries and inverters for residential off-grid systems. Calculate load, inverter size, battery capacity and panel wattage in minutes.
For most applications, a good rule of thumb is to aim for a 1:1 ratio of batteries and watts or slightly more if you live in regions with limited sunlight, such as near the poles.
Below, we examine the best residential solar inverters for 2025 based on quality, features, monitoring, warranty, service, and feedback from solar installers and industry professionals.
While the One Big Beautiful Bill (OBBB) Act¹ has recently changed the federal landscape for solar, there are still many specific state-level programs designed to help you save money. The page below is a state-by-state guide to the solar incentives available in 2026.
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