A charging network produces a lot of data. The skill is knowing which numbers matter. These key performance indicators (KPIs) show whether each site is earning, where problems are and when to invest more.
Usage
- Utilisation: hours or energy delivered compared with capacity. The most important driver of profit. See utilisation and profitability.
- Sessions per charger per day.
- Energy delivered (kWh) per charger, per site and per month.
- Average session length and energy per session.
- Peak-hour usage: when chargers are busiest, and whether drivers queue.
Reliability
- Uptime: share of time each charger is available.
- Failed session rate: sessions that did not start or stopped early.
- Time to respond and time to fix after a fault.
- Repeat faults by charger or part.
See why uptime is the product.
Money
- Revenue per charger, per site and per kWh.
- Gross margin per kWh: price minus electricity and payment costs.
- Electricity cost, including demand charges.
- Operating cost per site: maintenance, software, rent, support.
- Payback period and return on investment for each site.
Customers
- Unique and repeat users: are drivers coming back?
- New users from roaming partners.
- Support requests per 100 sessions, and their main causes.
- Ratings and reviews in charging apps.
How to calculate site ROI
- Total investment: hardware, installation, grid connection and approvals.
- Yearly net income: revenue minus electricity, operating costs and revenue share.
- Payback period: investment divided by yearly net income.
- ROI over the charger's life: total net income minus investment, divided by investment.
Turning KPIs into action
- Low utilisation: review location, visibility, pricing and fleet partnerships.
- Low uptime: improve maintenance or replace unreliable hardware.
- High utilisation with queues: add chargers or power.
- Low margin: check tariffs, demand charges and pricing.
EVee Buddy's dashboards track these KPIs for every charger and site, with regular reports for owners and investors.