When is a DNO notification required for an EV charger installation?

For most domestic 7kW single-phase installations, a G98 notification to the local Distribution Network Operator is required before the charger is energised. For larger or three-phase installations, a G99 application is needed and requires DNO approval before work begins. Your installer handles the submission as part of the job, but the notification type and timing must be confirmed during the survey stage, not on installation day.

How long does a typical EV charging installation take from enquiry to commissioning?

From first enquiry to installation day, allow two to four weeks. The installation itself typically takes two to four hours on site. Commercial or three-phase installations, or those requiring a consumer unit upgrade, take longer to survey, quote, and complete. Jobs where DNO approval under G99 is required can add several weeks to the programme depending on the local DNO's response time.

← All workflows

Workflow Scenario

EV Charging Installation - Site Survey to Commissioning

7 steps. Survey to signed off.

Step by step

Enquiry QualificationLeads

Capture site type, tenure, parking situation, and smart meter status. Confirm OZEV or Workplace Charging Scheme eligibility. Record the lead and assign to a surveyor.

Site SurveyeForms App

Record supply capacity, consumer unit location, cable run distance, earthing arrangement, and proposed charger position. Photograph the fuse board and meter. Flag any consumer unit or cabling work that affects the quote.

Quote PreparationQuotes

Price the charger unit, cable run, installation labour, and any consumer unit upgrade. Include DNO notification costs where required and confirm net grant pricing. Set validity period and send for approval.

Order and Equipment ProcurementPurchase Orders

On quote acceptance, raise a purchase order for the charger unit and materials. Schedule the install date. Confirm Wi-Fi details and site access requirements for the installation day.

InstallationJobs

Complete cable run, mount and connect the charger unit, and carry out electrical testing to BS 7671. Connect the charger to the customer's Wi-Fi and complete initial device configuration.

DNO Notification and CommissioningJobs

Submit G98 or G99 notification to the Distribution Network Operator where required. Commission the charger using manufacturer software. Demonstrate operation to the customer and configure smart charging schedules.

Handover and Final InvoiceInvoices

Issue the electrical installation certificate, as-installed record, and any grant claim documentation. Compile the customer handover pack and raise the final invoice.

What this workflow solves

Site surveys are booked without capturing enough electrical detail, so quotes miss consumer unit upgrades or extended cable runs - the job ends up costing more than quoted and the margin disappears.

OZEV grant eligibility is not confirmed before the customer commits, causing the job to stall when the installer discovers the customer is ineligible after the quote has already been accepted.

Commissioning paperwork - electrical installation certificate, DNO notification confirmation, and as-installed record - is completed informally and takes days to compile for the customer handover pack after the job is physically complete.

Frequently asked questions

See it live

Want to see this workflow in Zigaflow?

Book 30 minutes with Tim and we'll run through your exact process live.

Book a free demo →Build your own workflow

Related workflows

Operations

Audio-Visual - Managing an AV Equipment Hire Job

A complete operational workflow for AV hire businesses, covering written booking confirmation through kit preparation, dispatch, show-day additions, kit return and condition check, and same-day invoicing.

View workflow →

Operations

AV System Integration - Running the Commissioning and Handover Process

A structured workflow for AV system integrators running the commissioning and handover phase of an installation project - covering pre-commissioning checks, component and signal flow testing, end-user acceptance, handover pack compilation, and same-day invoicing. Ensures the commissioning milestone is documented, signed off, and invoiced on the day it is achieved.

View workflow →

Operations

Construction - Daywork Recording and Billing

Covers the end-to-end process for recording daywork on a construction project - from confirming the instruction and briefing operatives through daily sheet completion, obtaining signatures, and submitting the claim with the application for payment. For contractors managing time-and-materials work on any contract form.

View workflow →

Workflow Builder

Got a different workflow?

Describe your process in plain English and we'll map it to Zigaflow in seconds.

Build my workflow →