Phantom Grid
Sign inGet started

See the 30-minute interval that set your demand charge.

Upload your ComEd interval data and a few numbers from your bill. Phantom Grid reconstructs the demand charge from your own data and reconciles it to the bill, to the cent. No signup, nothing to sell.

Available for ComEd commercial accounts (demand billed). ComEd territory only for now.

The 30-minute interval export from your ComEd account. It stays private: it is read once to find the peak and is not stored.

Your bill’s service period. Look for “Service from [start] through [end]” and enter both dates exactly as shown.

The “service from” date.

The “service through” date.

Find the “Retail Delivery Service” line on your bill; the kW band next to it is your class. Secondary voltage.

The kW on your demand-charge line.

Phantom Grid reconstructs what your bill already reflects. It does not recommend, project savings, or sell anything.

Free tool

Reconcile your ComEd demand charge

The demand charge is the biggest line on a commercial ComEd bill, and it is set by a single 30-minute interval. This reconstructs that interval from your own meter data and reconciles the charge to the bill, to the cent.

What this tool does

A ComEd commercial demand charge is built from one number: your highest 30-minute interval of the billing period, priced by your delivery class. The bill shows you the final charge, not the moment that produced it. Upload your interval export and enter a few numbers off the bill, and Phantom Grid finds that single interval, recomputes the Distribution Facilities charge from ComEd’s own tariff, and reconciles it against what you were billed.

What you get back

The reconciled result resolves into the demand trace, the half-hour that set the charge marked on it, and the provenance behind every number, each traced to your own data and the published tariff. Where the reconstruction matches the bill, the charge is confirmed to the cent. Nothing is asserted without a source. Phantom Grid reconstructs what your bill already reflects; it does not recommend, project savings, or sell anything.

What you need

Your ComEd interval data export (the 30-minute CSV from your ComEd account), the service period dates off the bill, your delivery class, and the billed demand in kW from the demand-charge line. The file is read once to find the peak and is not stored. Available for ComEd commercial accounts billed on demand, ComEd territory only for now.

The free tool, or the done-for-you read

This tool is free, and you run it yourself: you gather the numbers and upload one bill’s interval file. If you are weighing a battery and would rather hand it off, we take a recent bill and your interval export, reconstruct your demand structure, and size whether storage actually pencils at your site against the current Illinois incentives. That is the paid feasibility read. No commission, nothing else sold, and this free check credits toward it.