The bar graph shows the average rebate per connector installed, the average unit cost per connector installed, and the average total project cost per connector installed.

The bar graph shows the average rebate per connector installed, the average unit cost per connector installed, and the average total project cost per connector installed. Our team aggregated the installations into three groups, 1 to 4 connectors per installation, 5 to 7 connectors per installation, and 8 to 10 connectors per installation. For the projects with 1 to 4 connectors, the average rebate per connector was $3,555, the average unit cost per connector was $3,676, and the average total project cost per connector was $9,299. For the group of projects with 5 to 7 connectors, the average rebate per connector was $3,861, the average unit cost per connector was $3,352, and the average total project cost per connector was $10,217. For the group of projects with 8 to 10 connectors, the average rebate per connector was $3,888, the average unit cost per connector was $2,871, and the average total project cost per connector was $10,517. This graph excludes sites where the site host installed both Level 2 and DC Fast Chargers under a single rebate.

Due to our sample size, which is relatively small, the cost per connector counterintuitively rises with more connectors installed. The sample size exaggerates sites that are expensive due to situational install problems that could lead to much higher install costs relative to the unit costs. This data also includes projects that favored single connector installs over dual connectors. This preference for single connector EVSEs changed for 2019 and later projects when CALeVIP switched to a rebate per connector system.