Solar module battery dark string

How do solar modules work?

To reach the target voltage for a system, solar modules are connected in series to form strings. The number of modules per string depends on both the voltage rating of each module and the desired system voltage. Let's look at two examples: Each string is then connected into a circuit, and multiple circuits come together to form a DC block.

What is the smallest building block of a solar system?

Let's now zoom in to the smallest building block of the system: the solar module. Each solar module is made up of many photovoltaic (PV) cells. These are the tiny components that convert sunlight into electricity through the photovoltaic effect. PV cells are non-mechanical devices.

What is a DC block in a solar array?

As solar projects scale up, the system architecture becomes more complex. In large installations, solar arrays are often divided into subsections known as DC Blocks. A DC Block is a subsection of a solar array, typically defined as a group of solar modules that all connect to a single central inverter.

What are the different types of solar modules?

There are two primary types of solar modules in use today: crystalline and thin-film. Each has its own advantages and trade-offs. Crystalline solar modules are comprised of crystalline silicon photovoltaic cells (c-Si).