Charge RosterBlocking is a turnover problem before it is a hardware problem
A charger can only serve another vehicle when both the connector and the charging space become available again.
That means parking duration and charging duration are not the same thing. An employee may work at the site for eight hours but only need two hours of workplace charging. If the vehicle occupies the charging bay for the full day, the workplace loses six hours of potential access.
Before ordering more chargers, ask how much existing charger time is being lost to long stays.
Give every charging turn an expected end
The simplest rule is that a shared charging turn has a visible start and end time.
That end may come from:
- a reservation duration;
- a site-wide maximum charging period;
- an assigned morning or afternoon turn;
- another explicit local rule.
The exact duration depends on commute patterns, charger speed and how practical it is to move vehicles during the working day. The important point is that the end is known before the turn begins.
Make the driver responsible for releasing the space
A shared charging policy should say what happens when the turn ends.
The normal expectation should be that the current driver makes the charging space available for the next user by the displayed end time. If the site allows another person to disconnect a vehicle, define that separately and only where the charger, vehicle and workplace procedures make it appropriate.
Do not make employees negotiate the rule at the parking bay.
Avoid one rule for every exception
Some workplaces cannot expect employees to move vehicles every two hours. Shift work, secure parking areas, accessibility needs or operational roles can make frequent movement unrealistic.
Handle those constraints explicitly:
- use longer turns where moving is genuinely difficult;
- create priority or exception categories when justified;
- reserve turnover-focused rules for the periods where demand is actually constrained;
- use a different parking arrangement if cars cannot be moved during the day.
A rule that nobody can follow is not a useful fairness rule.
Use availability data to separate blocking from scarcity
If a schedule is full, ask why.
A full day made of four short, genuinely needed charging turns is evidence of demand. A full day consisting of two cars parked for eight hours despite needing only a fraction of that time is evidence of poor turnover.
Track:
- reserved charging hours;
- returned or cancelled time;
- repeated overstays under the workplace policy;
- requests that could not be accommodated;
- whether the same few periods create most of the conflict.
That gives the workplace a better basis for deciding whether it needs better coordination or more physical capacity.
Why idle fees are not the only answer
Some charging systems can use pricing or idle fees to encourage turnover. That can be appropriate in certain environments, but workplace charging may also be free, subsidised or managed outside a billing platform.
A clear shared schedule, explicit end-of-turn expectations and visible next bookings can improve turnover without turning employee charging into a public-charging tariff model.
Practical anti-blocking rules
- Give each charging turn a visible end time
- Use durations that match real employee needs
- Require cancellation when a turn is no longer needed
- Make the current driver responsible for releasing the bay
- Define exceptions instead of handling them informally
- Do not ask employees to police each other
- Track repeated blocking separately from unmet demand
- Review capacity only after turnover problems are visible
Where Charge Roster fits
Charge Roster gives employees a shared charging schedule with defined reservation start and end times. That makes the next user's access visible and gives the workplace a clearer way to manage charging turns without changing charger hardware.
Charge Roster does not detect battery state of charge or automatically know that a vehicle has finished charging. The workplace still owns the physical parking and end-of-turn rules.