Multi-Location Energy Procurement for Illinois Portfolios

Businesses with several Illinois sites — retail chains, property portfolios, multi-plant operations, multifamily owners — face a procurement problem that single-site advice doesn't cover: the accounts rarely share a utility, a rate class, or a renewal date. This page explains how to bring order to a portfolio before pricing it.

Who this is for

Portfolio and procurement managers, controllers, and property teams responsible for energy across multiple meters or addresses in Illinois. It applies to mixed electric and gas portfolios and to sites spread across different utility territories.

Start with a meter inventory

Everything depends on a complete inventory: every site and meter, the serving utility, the rate class, the current supplier and contract end date, and whether the account is demand-billed. A portfolio almost always resolves into a handful of coordinated groups rather than one contract, and the inventory is what defines those groups.

For each account, the inventory should capture, at minimum:

• Site and meter identifiers — address and account/meter number, so nothing is double-counted or missed.
• Serving utility and commodity — ComEd or Ameren for electric; Nicor, Peoples, North Shore, or Ameren for gas.
• Rate class — including whether the meter is demand-billed, since that changes both pricing and the levers available.
• Current supplier and contract end date — or a note that the account is on utility default supply.
• Usage history — twelve months of kWh/therms, and interval data where the account is large or demand-billed.

The reason to build this first is simple: you cannot group what you have not catalogued, and grouping is the whole game in a multi-site portfolio. An incomplete inventory produces incorrect groups, and incorrect groups produce quotes that don't hold up.

Why one contract rarely fits everything

• Mixed electric utilities — ComEd and Ameren sites sit in different markets (PJM vs. MISO) and price on their own terms.
• Mixed gas utilities — a portfolio can span Nicor, Peoples, and North Shore territory, each with its own supplier-choice program; Ameren gas sites use Rider T transportation, not a standard supplier-choice market.
• Municipal-utility sites — locations like Naperville or Springfield (electric) have no competitive supply to procure, so they're managed for usage, not supply.
• Staggered end dates — meters bought at different times expire at different times; aligning them is often a multi-step plan, not a single event.

A worked example: how a mixed portfolio groups

Consider a retailer with stores across the Chicago metro and two downstate distribution sites. The northern stores take electric delivery from ComEd (PJM) and gas from either Nicor or, for a far-north location, North Shore. A downtown store sits in Peoples Gas territory. The downstate sites take Ameren electric (MISO) and Ameren gas — where only Rider T transportation applies, not a standard supplier-choice market. One store happens to be in a municipal electric city, so it has no competitive supply to shop at all.

That single company does not become one contract. It resolves into coordinated groups: ComEd electric accounts by eligibility and timing; Ameren electric accounts on their own market; Nicor gas, North Shore gas, and Peoples gas each in their own supplier-choice program; the Ameren gas sites handled through Rider T if eligible; and the municipal-electric store set aside for usage management rather than supply. Each group is then priced in its own market and normalized the same way a single account would be. The portfolio is managed as one calendar and one inventory, but purchased as several correctly scoped pieces.

What good portfolio procurement produces

• Correct grouping — accounts grouped by utility, eligibility, and timing so each group is priced in its own market.
• Aligned delivery dates where it helps, to simplify future renewals into fewer events.
• Comparable offers per group, normalized on the same basis as a single account (see how procurement works).
• A renewal calendar so no meter silently rolls to a post-expiration rate.

What to watch for

• Assuming the town name tells you the utility. Gas territories in particular are address-dependent; confirm every site from a recent bill rather than a map.
• Missing a meter. A portfolio quote is only as complete as the inventory behind it; an overlooked meter can roll to a post-expiration rate while attention is on the rest.
• Over-aligning. Chasing one perfectly synchronized renewal date can cost more in bridging terms than it saves in convenience. Align where it clearly helps.
• Treating municipal sites as shoppable. Locations like Naperville or Springfield have no competitive electric supply; the useful work there is usage and efficiency (and gas, where applicable).
• Confidential data at scale. A portfolio means many account numbers and bills; keep them within the secure request, not scattered across email or shared drives.

Getting started

Share the account inventory and usage for each site. From there the portfolio can be grouped and priced group by group, with a bill review on representative accounts and a contract review on the terms. As with any account, no savings figure is promised in advance — the value is an organized, comparable, correctly grouped portfolio and a renewal plan you can manage.