Here's the paradox of PE-owned portcos: individually, most of them have no leverage with energy suppliers. Collectively, they have enormous leverage — and nobody's using it.

A mid-market industrial portco spending $1.5M a year on electricity is a fine customer, but it's not a customer anyone fights over. Twenty portcos spending $30M collectively? That's a different conversation entirely. Suppliers rearrange their desks for that conversation. The problem is that most PE firms never aggregate the volume in a way that suppliers can actually price against.

Why Aggregation Actually Works

The argument for portfolio aggregation isn't complicated. Energy suppliers price on two things: the underlying wholesale market (which nobody controls) and their own margin (which is negotiable). The larger and more attractive the customer, the thinner the margin they'll accept.

On a standalone basis, a $1.5M portco gets bid by three to five suppliers at margins of $2-4 per MWh. Through a portfolio aggregation, that same portco — as part of a $30M book of business — gets bid by 12-15 suppliers at margins of $0.50-1.50 per MWh. That's 2-5% of the supply cost, which at the scale of a PE portfolio runs into seven figures of recurring annual savings.

That's just the margin piece. The aggregation also unlocks:

• Better contract terms. Larger customers negotiate meaningful concessions on bandwidth, pass-throughs, REC compliance, and termination provisions. Small customers accept the supplier's standard contract.
• Credit leverage. Portcos backed by a known PE sponsor face different credit requirements than standalone small businesses. Suppliers are more willing to waive letters of credit and security deposits when they see portfolio backing.
• Tier-one supplier access. The best retail suppliers don't chase $500K accounts. They do chase $20M+ portfolios. Aggregation gets you in front of suppliers that wouldn't otherwise bid on individual portcos.
• Standardization. One contract template, one set of terms, one renewal calendar, one decision framework. This is how you actually run a procurement function instead of herding 23 one-off contracts.

What Aggregation Doesn't Mean

Let's clear up a common misconception. Aggregation does not mean one contract across all portcos. That's usually impossible — different states, different utilities, different load profiles, different corporate entities, different tax situations. The portcos still sign their own contracts.

What aggregation does mean is coordinated procurement: a single RFP, a common bidder pool, normalized terms, synchronized timing, and a collective leverage position that suppliers price against. Each portco signs its own agreement — but at pricing that reflects the portfolio's total book.

This distinction matters because it keeps each portco financially and legally independent. Cross-guarantees don't propagate. One portco's credit event doesn't infect the others. But the pricing leverage flows through to each of them.

How to Structure It

Done well, portfolio aggregation runs on a cadence. Here's the model that works:

Step 1: Master Inventory

Build a single schedule covering every portco's energy footprint: every meter, every contract, every expiration, every rate, every supplier. Most firms have never constructed this document, which is why they can't run aggregated procurement even if they want to. Two to three weeks of work upfront, then it's a living document.

Step 2: Segment by Market

Aggregation happens within markets, not across them. Group portcos by ISO/RTO (ERCOT, PJM, MISO, ISO-NE, NYISO) and by utility territory within each. A PJM aggregation might cover five portcos across PA, NJ, MD, OH, and IL. An ERCOT aggregation covers only Texas portcos. Suppliers bid by region.

Step 3: Synchronize Renewal Timing

The hard part. Portcos have contracts expiring on different dates. To aggregate effectively, you want them aligned — or at least aligned enough that suppliers can price a combined book. Practical approach: extend or shorten some contracts modestly to get a handful of portcos onto a common renewal window. You can do this rolling over 12-18 months without massive disruption.

Step 4: Issue a Coordinated RFP

One RFP, one bid deadline, one evaluation framework. Include every portco in the target aggregation. Make the total volume and the portfolio backing explicit in the RFP so suppliers understand what they're bidding on. 15-20 suppliers per region is a reasonable bidder pool.

Step 5: Award and Standardize Contracts

Award to the best all-in offers. The best offer isn't always the lowest headline rate — normalize the bandwidth provisions, pass-throughs, termination language, and REC obligations first. Then each portco signs its own agreement with the winning supplier (or suppliers, if the aggregation splits across winners by region). Use a common contract template across all portcos in the aggregation.

Step 6: Manage Centrally

Ongoing management happens at the portfolio level. Bill audits, market monitoring, renewal pipeline, reporting. Each portco CFO gets a monthly or quarterly report, and the operating partner at the fund gets a portfolio-level dashboard. This is the part that makes aggregation sustainable — without central management, it decays back into 23 one-off contracts within 18 months.

The Broker Relationship in an Aggregated Model

Here's where the broker question gets interesting. Individual portcos often have individual brokers, each working a single account, each getting paid commissions by the supplier on that account's supply volume.

In an aggregated model, the PE firm is effectively replacing 23 small broker relationships with one relationship at the portfolio level. The broker serving the portfolio has a fiduciary responsibility to the firm (not to any single supplier), runs the procurement across every portco, and typically moves to a transparent fee arrangement — either a performance fee based on savings or a flat professional fee.

Why this matters: most individual portco brokers are compensated by suppliers, which creates an inherent conflict of interest (we've written about this separately). At portfolio scale, the PE firm can restructure the economic relationship to align incentives — and save the supplier commissions that were being embedded in the rate anyway.

What to Expect in Year One

A typical portfolio aggregation engagement for a PE firm with 15-25 portcos delivers something like the following in the first 12 months:

• Portfolio-wide contract inventory and benchmark (month 1-2)
• First aggregated RFP cycle covering the largest-spend portcos (month 3-6)
• 15-25% supply savings across participating portcos
• Bill audit refunds across the portfolio, typically in the mid six to low seven figures cumulatively
• Standardized contract framework deployed across the portfolio
• Established quarterly reporting cadence for the operating partner

Year two is usually better than year one, because by then you've got renewal windows aligned, a consistent bidder pool, and standardized contract terms across the portfolio. The compounding savings build over time.

Our Recommendation

If your firm owns more than five portcos with meaningful energy spend in deregulated markets, you almost certainly have an aggregation opportunity that's not being captured. The first step isn't a big procurement event — it's the inventory and benchmark. Spend three weeks building it. The document itself usually surfaces enough low-hanging opportunity to justify the next six months of work.