Photovoltaic panel diffusion purpose

There are two causes of charge carrier motion and separation in a solar cell: 1. drift of carriers, driven by the electric field, with electrons being pushed one way and holes the other way2. diffusion of carriers from zones of higher carrier concentration to zones of lower carrier concentration (following a gradient of chemical potential). [pdf]
[FAQS about Photovoltaic panel diffusion purpose]

Purpose of booster station energy storage system

Instead of storing energy for later use, a power booster aims to make the existing infrastructure more powerful by providing bursts of high energy in short times at the highest possible speed. [pdf]
[FAQS about Purpose of booster station energy storage system]