The expansion of electric vehicle (EV) charging infrastructure is driven by EV adoption, which highlights the importance of individual and collective efforts in decarbonisation. This paper analyses the variables affecting the growth of public EV charging stations in 371 areas in the UK between 2019 and 2024, at the quarterly level, distinguishing between slow (AC) and fast (DC) charging technologies. Using fixed effects, instrumental variables, dynamic panel and quantile regression methods, the study addresses endogeneity in EV adoption and examines heterogeneity in infrastructure development across regions and districts. The results show strong consistency in charging deployment, confirming that EV uptake is a significant driver of the expansion of both AC and DC systems, albeit with different local impacts. Higher regional income is associated with less public AC provision, consistent with a shift towards private or workplace charging. At the same time, DC deployment is more responsive to technological advances and changes in EV battery capacity and fuel prices. Policies that support private charging are eroding public AC infrastructure while simultaneously growing DC stations, suggesting technology-specific policy interactions. Distributional and regional analyses reveal significant variation in these relationships, suggesting that national averages mask important local differences. These findings underscore the importance of considering local economic conditions, technology specificities, and market dynamics when designing charging infrastructure policy. Effective decarbonisation requires policy frameworks that are sensitive to regional heterogeneity and the distinct roles of slow- and fast-charging technologies, rather than uniform national strategies.