Differences Between Distributed and Centralized Photovoltaic Power Generation
What are the differences between distributed and centralized photovoltaic (PV) power generation? Let’s take a look.
Similarities Between Distributed and Centralized PV Power Plants:
1.Principle:Both systems operate on the same principle, converting solar energy into electricity, which is then connected to the grid for use in production and daily life.
2.Components:They use similar components, typically including monocrystalline silicon panels or solar cells.
3.Equipment:The equipment is the same, including inverters, transformers, and combiner boxes. The inverter's role is to convert the generated direct current (DC) into alternating current (AC). The transformer steps up the voltage of the AC from the inverter, and the combiner box aggregates the DC from the solar panels for even delivery to the inverter.
Differences Between Distributed and Centralized PV Power Plants:
1.Installation Locations:Distributed PV power plants are commonly installed on rooftops, agricultural greenhouses, and other locations, often concentrated in populated northern and southern regions. In contrast, centralized PV power plants are typically built in deserts or barren areas, mainly in remote, desolate locations where land is relatively inexpensive.
2.Equipment:Due to lower grid connection voltages, distributed PV power plants require fewer primary and secondary devices. Inverters are generally wall-mounted for easy installation and compact size, while transformers are also smaller.
3.Transmission Distances:Distributed PV systems connect to the local grid, resulting in minimal or no line losses, supplementing local power supply for nearby users. Centralized PV power plants operate at higher voltage levels and usually have their own substations. Their inverters are larger and are typically installed indoors at the substation.