Reviewing ESPCs: Due Diligence Checklist for Federal and Commercial Energy Projects

21-Nov-25
7 mins
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Reviewing ESPCs: Due Diligence Checklist for Federal and Commercial Energy Projects

Energy Savings Performance Contracts (ESPCs) represent a unique financing mechanism that allows federal agencies and commercial entities to modernize infrastructure without upfront capital expenditures. Under these agreements, an energy services company (ESCO) designs, finances, and implements energy conservation measures, with payments coming from the resulting energy savings. The structure sounds straightforward, but the contractual complexity demands rigorous due diligence before signing.

For executives and commercial teams overseeing ESPCs, understanding the contract's risk allocation, performance guarantees, and long-term obligations is essential. These agreements typically span 10 to 25 years, making early-stage review critical to avoiding costly disputes or underperformance down the line.

Understanding the ESPC Structure

ESPCs differ from traditional procurement contracts in several important ways. The ESCO assumes the upfront costs of energy efficiency upgrades, such as HVAC replacements, lighting retrofits, or building automation systems. In return, the client commits to making payments over time, funded by the guaranteed energy savings. If savings fall short, the ESCO typically must compensate the difference, though the specifics vary widely by contract.

Federal ESPCs often follow standardized frameworks established by the Department of Energy or the General Services Administration. Commercial ESPCs, however, involve more negotiation and customization. Regardless of the sector, the contract must clearly define baseline energy consumption, measurement and verification protocols, and the consequences of non-performance.

Key Due Diligence Areas

Before committing to an ESPC, your team should conduct a thorough review of several contract elements. These areas often determine whether the project delivers value or becomes a source of ongoing friction.

First, examine the energy baseline and savings calculations. The ESCO's financial model relies on assumptions about current energy use and projected reductions. Request detailed documentation of how the baseline was established, including utility data, operational schedules, and any adjustments for weather or occupancy changes. If the baseline is inflated, the guaranteed savings may never materialize in practice.

Second, scrutinize the measurement and verification plan. This plan outlines how actual savings will be calculated and reported throughout the contract term. The International Performance Measurement and Verification Protocol (IPMVP) provides industry standards, but contracts often deviate or apply them inconsistently. Ensure the plan specifies the frequency of measurements, the party responsible for data collection, and the process for resolving discrepancies.

Third, assess the performance guarantee and remedies. Most ESPCs include a guarantee that energy savings will meet or exceed a specified threshold. Review the conditions under which the guarantee applies and the remedies available if savings fall short. Some contracts require the ESCO to pay the shortfall directly, while others allow for adjustments or extensions. Understand the caps, exclusions, and dispute resolution procedures tied to the guarantee.

Fourth, evaluate the financing terms and payment structure. ESPCs often involve third-party financing, which adds layers of complexity. Confirm that the interest rate, repayment schedule, and any prepayment penalties align with your organization's financial planning. If the contract includes a Open Bank Guarantee or similar financial instrument, verify its terms and the conditions under which it may be called.

Fifth, review the scope of work and change order provisions. Energy efficiency projects frequently encounter unforeseen conditions, such as outdated infrastructure or building code requirements. The contract should clearly define the initial scope and establish a transparent process for handling changes. Ambiguous change order clauses can lead to cost overruns and delays, undermining the project's financial viability.

Subcontractor and Third-Party Relationships

ESPCs typically involve multiple subcontractors for installation, commissioning, and ongoing maintenance. Your due diligence should extend to these relationships, particularly if the ESCO plans to delegate significant responsibilities. Request copies of any Main Contractor and Subcontractor Agreement documents to understand how liability flows through the project.

Verify that subcontractors carry adequate insurance and possess the necessary licenses and certifications. If a subcontractor fails to perform or causes damage, the contract should specify whether the ESCO remains liable or if your organization bears the risk. This is especially important for specialized work, such as controls integration or renewable energy installations.

Operational and Maintenance Obligations

Energy savings depend not only on the quality of the installed equipment but also on proper operation and maintenance. ESPCs often require the client to follow specific operational protocols, such as maintaining temperature setpoints or scheduling preventive maintenance. Review these obligations carefully to ensure they align with your organization's capabilities and budget.

Some contracts include provisions for the ESCO to provide ongoing maintenance services, either as part of the base agreement or for an additional fee. Clarify the scope of these services, the response times for repairs, and the allocation of costs for parts and labor. If your organization retains maintenance responsibilities, ensure that staff receive adequate training and that the contract includes access to technical documentation and support.

Termination and Default Provisions

Long-term contracts require clear exit strategies. Review the termination provisions to understand the circumstances under which either party may end the agreement early. Common triggers include non-payment, failure to achieve guaranteed savings, or breach of material terms. The contract should specify the notice period, any termination fees, and the process for winding down the project.

Default provisions are equally important. If the ESCO defaults, your organization may need to assume control of the project or engage a replacement contractor. Ensure the contract grants you access to all project documentation, warranties, and intellectual property necessary to continue operations. Conversely, if your organization defaults, understand the remedies available to the ESCO and the potential impact on your credit or operations.

Compliance and Regulatory Considerations

Federal ESPCs must comply with specific statutory and regulatory requirements, including the Energy Policy Act and Federal Acquisition Regulation provisions. Commercial ESPCs face fewer standardized requirements but must still adhere to state and local energy codes, environmental regulations, and utility interconnection rules.

Confirm that the contract addresses all applicable compliance obligations and assigns responsibility for obtaining necessary permits and approvals. If the project involves renewable energy or distributed generation, verify that the ESCO has secured interconnection agreements with the local utility and that the contract accounts for potential changes in tariffs or net metering policies.

Practical Steps for Contract Review

Given the complexity of ESPCs, assemble a cross-functional review team that includes representatives from finance, operations, legal, and facilities management. Each discipline brings a unique perspective that can identify risks others might overlook.

Consider the following steps during your review process:

  • Request a redlined version of the contract showing any deviations from the standard form or template.
  • Conduct a financial analysis to verify that projected savings justify the contract term and payment obligations.
  • Engage an independent engineer to review the technical specifications and energy models.
  • Confirm that all exhibits, schedules, and attachments referenced in the contract are included and consistent.
  • Identify any provisions that require board approval, stakeholder notification, or additional internal authorization.

Managing Long-Term Performance

Due diligence does not end at contract execution. Establish internal processes for monitoring performance, tracking savings, and managing the ongoing relationship with the ESCO. Designate a project manager with clear authority to approve invoices, coordinate maintenance, and escalate issues as needed.

Schedule regular review meetings to assess whether the project is meeting its savings targets and to address any operational concerns. Maintain detailed records of all communications, change orders, and performance reports. This documentation will prove invaluable if disputes arise or if you need to renegotiate terms during the contract period.

ESPCs offer significant benefits, but they require careful planning and oversight. By conducting thorough due diligence and maintaining active contract management, your organization can capture energy savings while minimizing risk. The investment of time and resources in the review process pays dividends throughout the life of the agreement, ensuring that the contract delivers on its promises and supports your long-term operational goals.

What compliance requirements apply to federal ESPCs under FEMP guidelines?

Federal ESPCs must comply with the Federal Energy Management Program (FEMP) guidelines, which mandate specific contract structures, energy savings verification, and measurement protocols. Agencies must ensure projects meet minimum savings thresholds, typically requiring that energy savings cover all project costs over the contract term. FEMP requires independent measurement and verification of savings, adherence to federal procurement regulations, and compliance with the Energy Independence and Security Act. Contractors must demonstrate financial capability and provide performance guarantees. When structuring subcontractor relationships for these projects, teams should review documentation such as a Main Contractor And Subcontractor Agreement to ensure all parties meet federal compliance standards. Additionally, projects must align with agency sustainability goals and undergo rigorous technical reviews before award.

How do you verify an ESCO's qualifications before signing an ESPC?

Start by requesting proof of licensing, insurance, and bonding appropriate to your project's scope and location. Review the ESCO's track record by examining completed projects of similar size and complexity, including references from past clients. Verify their financial stability through credit reports and audited financial statements to ensure they can sustain long-term performance obligations. Check certifications from recognized industry bodies and confirm their technical expertise in the specific energy systems your project requires. If subcontractors will be involved, evaluate their qualifications using a Main Contractor And Subcontractor Agreement framework. Finally, conduct background checks and confirm there are no outstanding legal disputes or compliance violations that could jeopardize project delivery or your organization's risk profile.

What financial statements should you request during ESPC contract review?

When reviewing ESPCs, request the energy service company's audited financial statements for the past three to five years, including balance sheets, income statements, and cash flow statements. These documents reveal the contractor's financial stability and ability to complete long-term performance contracts. You should also ask for current credit ratings, outstanding debt obligations, and proof of adequate working capital. If the ESPC involves subcontractors, obtain their financial documentation as well, particularly if you are entering into a Main Contractor And Subcontractor Agreement. Additionally, review any existing liens, pending litigation, or bankruptcy filings that could affect contract performance. Strong financials reduce the risk of project abandonment and ensure the company can honor energy savings guarantees throughout the contract term.

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Written by

Will Bond
Content Marketing Lead

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