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Trexon commercial planning worksheet

Commercial Bill & Maximum-Demand Checklist

Prepare the billing and operating evidence needed for a commercial solar, BESS or demand-management assessment.

For: Facilities, finance and procurement teams

Electricity records

  • Latest complete electricity bill
  • Preferably 12 months of bills
  • Tariff category and account type
  • Maximum-demand values and charges
  • Any interval or half-hourly load files

Facility facts

  • Operating hours and shifts
  • Major electrical loads and rated capacity
  • Planned production or occupancy changes
  • Existing solar, generator or battery equipment
  • Known outage or power-quality issues

Site information

  • Roof, car park or land type
  • Approximate usable area
  • Main switchboard and transformer information
  • Site address and access constraints
  • Single-line diagram if available

Decision brief

  • Required outcome
  • Budget or preferred commercial model
  • Decision timeline
  • Internal technical contact
  • Preferred response channel

How to complete this worksheet

This worksheet has 4 sections: Electricity records, Facility facts, Site information, Decision brief. Work through them in order and tick each item once you have the document or fact. It is written for facilities, finance and procurement teams, so share it with whoever holds each answer. If something is not available, mark it as unknown rather than estimating.

Maximum demand (MD) is the highest power your site draws in a billing period, and it is charged separately from the energy you use. Your bill shows the MD value and its charge, which is why this checklist asks for your tariff category, MD figures and, if you have them, interval or half-hourly load files. Twelve months of bills are preferred because they show seasonal and production-driven peaks that a single bill can hide.

Bills and facility facts show consumption and demand, but not roof condition, switchroom space or cable routes. Those need an on-site check, which Trexon offers as a RM500 commercial site survey credited in full against your project. Typed amounts and selections here are preliminary inputs only.