Building the Business Case for an HVAC-R Efficiency Project

Key takeaways

• Finance teams approve ranges with a measurement plan, not single-point promises.
• Anchor the case in 12 or more months of metered baseline data and show low, mid and high savings scenarios.
• Use a break-even view: show the maximum cost each scenario can justify at your hurdle rate.
• FEMP's 2025 real discount rate of 3.0% is a common floor for public projects; private owners usually use their own cost of capital.
• Name the risks and how a pilot with IPMVP-based M&V reduces them.

Facility teams often know a project makes sense long before finance agrees. The gap is usually presentation, not merit. A CFO, owner or procurement committee wants to see the problem in money terms, a defensible baseline, a realistic range of outcomes, the risks, and how results will be proven. This page gives you a template that covers all of that for an HVAC-R efficiency project, and walks through an illustrative example.

The one-page structure

Lead with a one-page summary. Supporting detail goes in appendices.

1. Problem: what is costing money now, in dollars.
2. Baseline: measured current performance and cost.
3. Options: including "do nothing" and "replace."
4. Savings range: low, expected and high, with sources.
5. Risk: what could go wrong and how it is limited.
6. M&V plan: how savings will be measured and reported.
7. Financials: payback, NPV and the break-even cost.
8. Non-energy benefits: listed separately and not double counted.
9. Decision requested: usually a pilot, then a portfolio rollout if results hold.

1. Problem

State it in terms finance cares about. "Our central plant uses about 1.2 million kWh a year for cooling, and its efficiency has declined compared with design" is better than "the chillers are old." Include evidence: rising kWh per cooling degree day, higher kW per ton, longer run times or comfort complaints.

2. Baseline

A baseline is the measured energy use and cost before any change, under known conditions. For HVAC-R it should include:

• At least 12 months of utility or submeter data, so a full cooling season is covered.
• Equipment-level data where possible: kW, tons or ton-hours, kW per ton, and run hours.
• The drivers of energy use: cooling degree days, occupancy and production.
• The full price of electricity: energy charges, demand charges and riders. Averages can mislead. For example, the Energy Information Administration reports that the average Texas commercial retail price was 8.47 cents per kWh in July 2026, but your marginal cost per kWh saved depends on your tariff and on how much peak demand you avoid.

See baselines and weather normalization for the method.

3. Options

Show the decision-maker the full field, not just your preferred measure:

These options often work together. Our efficiency measures menu helps you fill in this section with cost and effort ranges.

4. Savings range

Present three scenarios: low, expected and high. Say where each comes from. For a CRYOGENX4 treatment, the company reports energy savings of up to 30% and typical payback of 12 to 36 months, and says results vary by equipment condition. Treat the company's figure as a ceiling, not a forecast. Set your expected case from your own equipment's condition and, ideally, from a pilot on representative units.

5. Risk

Name the risks before finance does:

• Savings below expectations. Mitigate with a pilot and a go/no-go threshold before rollout.
• Measurement noise. Weather and occupancy changes can hide or exaggerate savings. Mitigate with normalization and equipment-level metering.
• Warranty and compatibility questions. Mitigate by reviewing your OEM warranty terms and the product's test documentation. See OEM warranties and additives.
• Persistence. Will savings last? Mitigate with follow-up measurement at set intervals.
• Operational disruption. CryogenX4 states its treatment is installed while the system runs, with no downtime and no system modifications, and that most installs take one day.

6. M&V plan

Measurement and verification (M&V) is how savings are proven. The International Performance Measurement and Verification Protocol (IPMVP), maintained by the Efficiency Valuation Organization, is the common reference, and its current edition is IPMVP Core Concepts 2022. FEMP's M&V Guidelines (version 5.0) apply it to federal performance contracts. For an HVAC-R measure, the usual choices are:

• Option A or B (retrofit isolation): measure the treated equipment directly, such as kW and ton-hours for a chiller or kW and run hours for a rooftop unit. Option A measures key parameters and estimates others. Option B measures all relevant parameters.
• Option C (whole facility): use the utility meter. This works when the expected saving is large relative to normal variation in the building's bills.

Write the plan before the project starts: measurement boundary, baseline period, adjustment variables, reporting period and who produces the report. See IPMVP options explained for each option in detail.

7. Financials: payback, NPV and break-even

Simple payback (cost divided by annual savings) is easy to understand but ignores timing and persistence. Net present value (NPV) discounts future savings to today's dollars at a chosen rate. For public projects, the federal life-cycle cost method uses DOE discount rates. The 2025 NIST Annual Supplement to Handbook 135 lists a 3.0% real rate (4.5% nominal) for FEMP analyses. Private owners usually use their own weighted cost of capital or hurdle rate, which is often higher. See payback, ROI and NPV for the formulas.

When the price is not yet known, use a break-even view: show the most each scenario can justify spending at your payback limit or hurdle rate. Then compare that with quotes.

Illustrative example

Illustrative example only. These are assumed numbers chosen to show the method. They are not CryogenX4 results, a CryogenX4 price or a prediction for any building.

Assumptions: a Houston office central plant uses 1,200,000 kWh a year for cooling (metered baseline). The all-in marginal electricity cost is $0.10 per kWh, including demand effects. The analysis runs 10 years at a 3% real discount rate with flat real energy prices.

How to read it: if the quoted cost is below the break-even figure in the "expected" row, the project meets a 3-year payback even before non-energy benefits. NPV equals the present value of savings minus the cost. Emissions use EPA's eGRID2023 rev2 ERCOT total output rate of 736.6 lb CO2e per MWh. The "fade" column shows why persistence measurement belongs in the plan. Run your own numbers in the HVAC savings calculator.

8. Non-energy benefits

List these separately, and only count in the financials what you can support:

• Deferred capital replacement, if better performance lets you keep equipment to a planned date.
• Compliance value under building performance standards, where they apply.
• Reported emissions reductions (Scope 2) and better ENERGY STAR Portfolio Manager metrics.
• Capacity and comfort on hot days, if measured supply temperatures and run times improve.
• Mechanical benefits as the company describes them: CryogenX4 says improved lubricity reduces friction and compressor heat. Treat this as a potential benefit to monitor, not a dollar figure.

Do not count tax incentives you have not confirmed. As of October 2026, Section 179D is closed to projects starting construction after June 30, 2026. See 179D after the One Big Beautiful Bill Act.

Answering the usual objections

9. Decision requested

Ask for a decision that matches the evidence. A good request is often staged: approve a pilot on one to three representative units with a written M&V plan and a savings threshold, then a portfolio rollout if the threshold is met. This turns a request for faith into a request for a small, measured test.

Next step

Gather 12 months of utility data and an equipment list for your largest cooling loads, then request a pilot discussion with CryogenX4. The pilot program page linked below explains how a measured trial is set up and what you receive at the end.

Frequently asked questions

What discount rate should I use for NPV?

Use your organization's cost of capital or hurdle rate. Federal projects use DOE rates; the 2025 NIST supplement lists 3.0% real (4.5% nominal). Many public owners use similar low rates, while private owners often use higher ones. Show a sensitivity range if you are unsure.

Should I use the vendor's maximum savings figure in my case?

No. Treat a vendor's maximum, such as CryogenX4's reported 'up to 30%', as a ceiling. Build low, expected and high scenarios from your equipment's condition and, ideally, from a measured pilot.

Which M&V option fits an HVAC-R treatment?

Usually IPMVP Option A or B, which measure the treated equipment directly (kW, ton-hours, run hours). Option C, using the whole-building meter, works when savings are large relative to normal bill variation.

How do I present a project before I have a price?

Use break-even analysis: show the maximum cost each savings scenario can justify at your payback limit or discount rate, then compare quotes against it.

Sources

1. IPMVP (International Performance Measurement and Verification Protocol) — Efficiency Valuation Organization
2. M&V Guidelines: Measurement and Verification for Performance-Based Contracts, Version 5.0 — U.S. DOE Federal Energy Management Program
3. Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis, 2025 (NIST IR 85-3273-40) — National Institute of Standards and Technology
4. Electric Power Monthly, Table 5.6.A: Average Price of Electricity to Ultimate Customers by End-Use Sector, by State — U.S. Energy Information Administration
5. eGRID2023 Summary Tables (rev2, June 2025) — U.S. EPA
6. Instructions for Form 7205 — Internal Revenue Service