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Insights

Research and analysis on commercial electricity costs, demand charges, rate design, and interval data. Learn how electricity pricing actually works.

ComEd Commercial Electricity: Rates, Delivery Charges, and Demand

How ComEd commercial bills actually work in northern Illinois: the supply half you can shop, the delivery half you cannot, and the demand charge that quietly runs the bill.

ComEd Hourly Pricing

ComEd Hourly Pricing lets you pay the real hourly market price for electricity instead of a flat rate. Whether it saves you money depends entirely on when you use power. Here is how it works and what actually decides it.

Demand Charges on an Electric Bill: What Yours Actually Costs

A demand charge bills the highest power your building drew in one interval, not the energy it used. Find it on your bill, see what set it, and work out whether yours is worth attacking.

Electricity Bills

Learn how to read commercial electricity bills, understand supply and delivery charges, and see why peak demand determines many electricity costs.

Load Factor

Load factor compares a building's average power use to its peak demand, and that shape drives commercial demand charges. This section explains what the number means; the load factor calculator works out yours from two numbers on the bill.

Demand Management

Demand management strategies help businesses reduce peak electricity demand and control demand charges. Learn how operational changes, load shifting, and control systems can lower commercial electricity costs.

Interval Data Guides and Tools

Every Phantom Grid guide and free tool for ComEd interval data: how to request your export, how to read it, and what it can and cannot settle about your bill.

Rate Structures

Electricity rate structures explain how utilities convert grid costs into customer charges, demand charges, and energy prices on commercial electricity bills.

Commercial Battery Storage

Whether a commercial battery pays depends on the shape of your peaks, not a sales projection. Independent, measured analysis of commercial battery storage economics in Illinois, read from your own interval data.

Commercial Solar

Whether commercial solar pays depends on the incentives you can actually capture and the rate you actually pay, not on a projection that assumes your bill climbs forever. Independent analysis of commercial solar economics in Illinois, with nothing to sell.