|dc.description.abstract||This research explores the difference in cost between the installation of electric vehicle (EV) charge points during initial construction or major renovation of a building as opposed to retrofitting at a later date. There is very limited data available on the differences in costs of the installation of EV charge points in new buildings or those undergoing major renovation, as opposed to those being retrofitted. Neither the ‘top-down’ nor ‘bottom-up’ data analysis allowed us to quantify this factor.
New developments do offer cost difference by offering some efficiencies in installing EV charge points when compared to buildings being retrofitted. These efficiencies are in relation to not incurring additional costs for extra civil works such as digging a trench or laying and ducting of the electrical cables which would already be covered as part of the construction of a new development. These efficiencies are quite site specific, and the scale of cost cannot be generalised, as such being difficult to quantify.
Installing EV chargers in new developments as opposed to in those being renovated or retrofitted is also more cost efficient in terms of the District Network Operator (DNO) upgrades as they are generally not required in respect to EV charge points as it is likely that increased capacity requirements have been considered as part of the new development. The analysis suggests that DNO costs contribute significantly to the overall cost to install EV charge points.
Geography is clearly a key factor influencing installation costs for EV charge points, with this largely being influenced by supply-chain issues such as availability of quality suppliers and technicians, labour and travel costs, which result in the costs being generally higher in the remote and island areas for all building types including new, undergoing major renovation, and retrofitted.||en