Active glazing components, which can dynamically regulate incoming solar radiation, are particularly interesting, as they simultaneously impact multiple aspects, such as thermal and visual comfort and overall energy consumption. Near-infrared EC windows (also referred to as “plasmochromic”) enable selective spectral control of the incoming solar radiation and efficiently respond to ever-changing lighting, heating and cooling requirements. They allow to selectively filter a large amount of near-infrared solar radiation passing through the window, thus blocking solar heat gain during hot summer days and letting it permeate over sunny winter days whilst independently regulating the amount of daylight. This article delves into the core attributes of such glazing systems, showcasing recent advancements in their design and fabrication. By evaluating key metrics like luminous transmittance (TLUM), solar transmittance (TSOL), and total solar heat gain coefficient (g-value), the paper presents a preliminary performance assessment of smart glazing employing this technology. Furthermore, the authors prospect the importance of implementing appropriate control strategies for these systems to fully exploit their potential in reducing energy consumption while maximising comfort.