The transition to electric vehicles (EVs) is central to decarbonization plans around the world. However, in many large cities, millions of people live in multi-unit buildings without a dedicated parking space where they can install a private EV charger. In these contexts, expanding access to on-street charging near residents’ homes is an important policy objective. However, these investments are costly and their benefits remain uncertain. To shed light on this question, we study the deployment of Montreal’s public on-street charging network, the largest such network in North America. We use data on EV ownership and charging-station locations, together with transaction-level charging usage. Our analysis is highly granular, allowing us to compare changes in EV adoption across street blocks. To address endogenous charger placement, we construct an instrument using pre-existing underground transformers, proximity to which substantially reduces station installation costs. Our preliminary results show an economically meaningful and statistically significant effect of the local charging network on EV adoption. In our preferred specification adding a charging station in a neighborhood with a low prevalence of detached housing, where residents are therefore likely to have limited access to private parking, increases EV adoption by 52%. This estimate implies a back-of-the-envelope abatement cost of approximately $68 per ton of avoided CO2. An additional charger may also reduce congestion at nearby stations, while the EVs it induces can create additional congestion. The reduced-form adoption estimate captures the net equilibrium effect of these responses but does not separate the direct effect of additional charging capacity from the congestion response. To quantify these channels, we are developing a structural model of EV choice as a function of charging-station availability.