LVA Power PlannerLVA Power PlannerDocumentation

A practical planning workflow

How to Plan Event Power

Planning event power starts with understanding what needs power, where it will be used and how it will be supplied. A connected plan makes those relationships visible before installation. The workflow below shows how LVA Power Planner helps organise the design; supply assessment, protective-device selection and on-site verification require appropriate electrical competence.

1. Establish the event requirements

Record the project name, venue, dates and project manager. Split the site into operational areas such as stages, catering, production, campsites and lighting. Gather equipment ratings, quantities, locations and operating requirements from the people responsible for each area. Record assumptions and unknown information instead of silently treating missing loads as zero.

2. Identify available supplies

Add the fixed supplies or generator outputs that will feed the event. Record their ratings and locations, then assign sources to generators where appropriate. Review the actual upstream limits: connecting a larger distro through an adapter does not create additional source capacity. Generator forecasts use planned demand and should be checked against the selected machine's operating characteristics.

3. Build the distribution hierarchy

Place the main and downstream distros in the project and connect them to their supplying outputs. Give each distro a useful name and location. Assign equipment to the intended circuits; use manual loads when reliable aggregate demand is known but an equipment-by-equipment schedule is unavailable. A connected model carries child distro loads through to parent circuits and sources.

4. Review demand and phase balance

Compare connected load with planned design demand. Where justified, enter circuit diversity and power-factor assumptions rather than changing equipment nameplate wattage. Check each phase against the available capacity and review overload or imbalance warnings. Keep the reasoning behind reduced demand visible so that other designers and the onsite team understand the plan.

5. Review cables and document the layout

Enter cable lengths and choose appropriate cable records. Review adjusted capacity and cumulative voltage drop along the supply path, checking the installation conditions behind the data. Use the schematic to communicate source and distro locations and cable routes. Drawing a longer route on the schematic does not automatically change the design cable length.

6. Issue the plan and verify the installation

Select the sources and distros to include in the report and add overview or schematic pages where useful. Share a live view-only link or issue a PDF to the site team. After installation, competent personnel must perform the applicable inspection and testing. Use the Sign-Off module to record results, review declarations and save the documentation version that is issued.

Learn how the workflow operates

Related event-power resources

LVA Power Planner is an indicative planning and documentation tool. It does not independently verify or certify compliance with BS 7909, BS 7671 or any other standard. Responsibility remains with the competent person and relevant duty holder.