How a Single Utility Bill Review Uncovered Over $600,000 in Savings

Utility data can tell a powerful story if you know how to read it. In this case, a routine review of monthly electricity usage revealed a major billing discrepancy for a healthcare facility, ultimately uncovering more than $600,000 in potential savings.

A Closer Look Sparks Concern

The issue first surfaced during a standard data collection effort, part of ENFRA’s due diligence for a potential Energy-as-a-Service (EaaS) project at the healthcare facility. As the team reviewed historical utility data to develop a baseline for the EaaS proposal, an ENFRA Utility Analyst noticed something unusual: the June 2025 electricity bill was significantly higher than any other month.

Recognizing the potential impact on both project planning and financial forecasting, the analyst escalated the finding to the Utility Analyst Project Lead. Together, they reviewed the billing data in detail and confirmed the anomaly was not a simple data entry error, signaling the need for a deeper investigation.

Digging Deeper

Recognizing the potential impact, the issue was escalated to the broader energy team. Their task was to determine whether operational conditions at the facility could explain the spike. One key consideration was the presence of a third-party cogeneration (CoGen) system. After evaluation, the team ruled out a CoGen outage or operational change as the cause.

Further analysis revealed deeper inconsistencies:

• The facility’s energy models would not calibrate with the billed usage
• The recorded consumption far exceeded what the installed equipment could physically support

At this point, it became clear. The problem was not operational. It was billing-related.

Validating the Data

To confirm their findings, the team requested interval data directly from the client. This granular, time-based usage data provided a definitive comparison against the utility bill.

When the data arrived, the discrepancy was undeniable.

• Originally billed usage: 7,944,654 kWh
• Validated actual usage: 1,990,616 kWh

The billed amount was nearly four times higher than the actual energy consumption.

Quantifying the Impact

With confirmation in hand, the team conducted a detailed rate analysis using both the erroneous and corrected usage profiles. The result was clear. The healthcare facility had overpaid by approximately $600,000 for a single billing period.

Driving Resolution

The findings were presented to the client on March 5, 2025. What followed was an exceptionally fast response.

Within 48 hours, the utility issued a revised bill.

• Refund from utility: $317,451
• Expected supplier refund: Approximately $300,000
• Total expected recovery: Approximately $617,000

The Bigger Picture

This case highlights the critical value of proactive utility auditing. Without a detailed review, this overcharge could have gone unnoticed, buried in a single month’s data. Instead, through careful analysis, cross-team collaboration, and persistence, the team identified the issue, validated the data and recovered significant costs for the client.