Installation scheduling is the planning and coordination of all activities required to deliver an EV charging installation—ensuring the right people, materials, permits, and site access are available in the correct sequence. It covers civil works, electrical works, commissioning, and handover, and is critical for minimizing downtime, avoiding rework, and meeting rollout timelines.
What Is Installation Scheduling?
Installation scheduling defines who does what, when, across the installation lifecycle:
– Site survey and final design confirmation
– Permitting, utility approvals, and capacity reservations
– Procurement and delivery of chargers, switchgear, cables, foundations
– Civil works (trenching, ducting, foundations, reinstatement)
– Electrical works (distribution, protection, cabling, terminations)
– Charger mounting and connections
– Network setup (SIMs, routers, Ethernet, backend provisioning)
– Testing, commissioning, and documentation handover
A good schedule aligns dependencies so each step can start without blockers.
Why Installation Scheduling Matters for EV Charging
EV charging projects are multi-trade and often installed in live environments (car parks, depots, hotels). Strong scheduling helps:
– Reduce site disruption and keep parking operations running
– Avoid delays caused by missing permits, materials, or utility coordination
– Coordinate multiple contractors (civil, electrical, IT, signage) efficiently
– Prevent rework from out-of-sequence tasks (e.g., mounting before ducts are ready)
– Improve quality by allocating time for commissioning and verification
– Meet go-live dates tied to tenders, fleet launches, or seasonal demand
For multi-site rollouts, consistent scheduling also improves cost predictability.
Typical Installation Phases and Sequence
A common sequence looks like this:
Pre-install phase
– Site survey, photos, measurements, and parking bay layout
– Feasibility check: hosting capacity and import capacity
– Design freeze: single-line diagram, cable routes, foundation plan
– Permits and approvals (including heritage zone approvals if applicable)
– Utility coordination and lead-time confirmation
– Procurement and logistics planning
Civil works phase
– Mark-out and underground utility checks
– Trenching, ducting/conduit installation, draw ropes
– Foundation/plinth installation and anchoring preparation
– Surface reinstatement and drainage checks
Electrical phase
– Distribution board or switchgear installation
– Protection device installation (RCD/RCBO coordination)
– Cable pulling, terminations, and earthing/bonding
– Insulation resistance testing and grounding verification
– Power quality checks where required (THD, harmonic loading)
Charger installation and commissioning
– Mounting (wall or ground mounting) and mechanical checks
– Communications setup (Ethernet, 4G) and backend onboarding (OCPP)
– Functional tests: session start/stop, authorization, load control
– Safety tests: ground fault protection, emergency stop behavior
– Metering verification (often MID metering where relevant)
– Documentation pack and handover
Key Scheduling Dependencies
Common dependencies that drive the critical path:
– Utility upgrade or new connection lead times
– Permitting approvals and site owner access windows
– Delivery of switchgear, meters, and charging hardware
– Weather constraints for civil works and reinstatement
– Coordination with site operations (hotel peak periods, depot shifts)
– Commissioning prerequisites (network coverage, CPMS credentials)
Best Practices
High-performing installation schedules typically include:
– A clear critical path with buffer for utility and permit delays
– Pre-staged materials and verified bill of materials (BOM)
– Defined responsibilities across contractors and stakeholders
– Mandatory commissioning checklist and acceptance criteria
– Safety planning integrated into the schedule (health & safety planning)
– Cutover plan to avoid disrupting existing electrical systems
– Photo documentation and as-built capture during each phase
Related Glossary Terms
Commissioning Documentation
Site Survey
Feasibility Study
Hosting Capacity
Import Capacity
Ground Mounting
Cable Routing
Health & Safety Planning
OCPP
MID Metering