Inventory Existing and Planned Electrical Loads

Start with safety

Use bills, manuals, nameplates already accessible and existing records; never access energized compartments.

Gather utility and service records

Collect account information, prior service work, permits and drawings without treating historical demand as design capacity.

List current equipment

Record heating, water heating, cooking, laundry, cooling, workshop and other major loads with known model data.

Add planned loads

Include EV charging, heat pump, suite, hot tub or appliance projects and realistic sequencing.

Leave simultaneity to calculation

A qualified method must address demand, diversity and code requirements; simple addition is not a decision.

Keep the output

Record calculation method, inputs, assumptions, service evidence, options and recommended next checks.

Create an equipment evidence register

List heating, water heating, cooking, laundry, cooling, shop and other significant equipment with model data from accessible records or nameplates. Mark estimates and missing data so they cannot silently become calculation inputs.

• Never remove equipment covers
• Attach manuals by model
• Separate connected from planned loads

Build a dated project queue

Place EV charging, heat pump, suite, hot tub, solar, battery or appliance changes on a timeline with expected use. Ask the qualified reviewer how demand, diversity and sequencing affect the method rather than adding nameplate ratings.

• Include overlapping project phases
• Record dwelling or strata context
• Update after design changes

Preserve the assessment output

Request the method, input list, assumptions, service evidence, calculated result, considered options, approval dependencies and update triggers. Keep this record with later proposals so equipment selections can be checked against the same capacity basis.

• Name the responsible reviewer
• Resolve conflicting service records
• Version every recalculation

Issue the controlled load-input register

List existing equipment, accessible model evidence, fuel changes, dwelling or suite context, utility and service records, present usage evidence and planned EV or electrification projects. Mark estimates and missing inputs, and give each item an effective date. Attach the qualified calculation method, assumptions, result, considered options and reviewer. When equipment or project sequence changes, create a new revision rather than editing the earlier output. The register supports consistent proposals while preventing historical consumption, nameplate addition, spare panel spaces or a web estimate from becoming an unsupported declaration of available capacity.

• Version the equipment inventory
• Separate present and future loads
• Preserve calculation assumptions
• Reconcile service-record conflicts
• Trigger updates after selections