
The solar process begins with sunshine, which causes a reaction within the solar panel. That reaction produces a DC. However, the newly created DC is not safe to use in the home until it passes through an inverter which turns it from DC to AC. .
A solar inverter is really a converter, though the rules of physics say otherwise. A solar power inverter converts or inverts the direct current (DC) energy. .
When it comes to choosing a solar inverter, there is no honest blanket answer. Which one is best for your home or business? That depends on a few factors: 1. How. .
Oversizing means that the inverter can handle more energy transference and conversion than the solar array can produce. The inverter capabilities are more. .
Choosing a solar power inverter is a big decision. Much of the information about selecting an inverter has to do with the challenges that a solar array on your roof. A solar inverter converts the DC power from solar panels into AC power. Key components of a solar inverter include IGBTs, transformers, and microcontrollers. The inverter uses an H-bridge configuration and algorithms like maximum power point tracking (MPPT) to optimize energy output.
[pdf] 
In short, Yes, a 12v solar panel can charge a 24v battery. To get the maximum from a 12v solar panel to charge your 24v battery use an MPPT charge controller or connect two 12v solar panels in series to charge a 24v battery using a PWM charge controller. .
Note: Click here to read our in-depth post on how to use this calculatorand what factors it takes into account and some shortcomings of this. .
Here's a chart on what size solar panel you need to charge different capacity 24v lead-acid and Lithium (LiFePO4) batteries in 5 peak sun hoursusing an MPPT charge controller. .
Here's a chart about what size solar panel you need to charge a 24v 100ah lead-acid and lithium battery using an MPPT charge controller with different peak sun hours. .
Here's a chart about what size solar panel you need to charge a 24v 200ah lead-acid and lithium battery using an MPPT charge controller with different peak sun hours. The good news is that most solar panels are built this way, which is why 12V solar systems can use 18V or more power sources. A 24V battery bank, however, would need panels capable of providing a voltage higher than this (charge) to receive a full charge.
[pdf] A typical 300-watt solar panel is 65.8 inches long and 36.1 inches wide. It takes up 16.5 sq ft of area. If you have a 1000 sq ft roof, and you can use 75% of that roof area for solar panels, you can theoretically put 45 300-watt solar panels on a 1000 sq ft roof.
[pdf]